Acc.#1. Acanthocalycium Backeb., Kaktus-ABC: 224, 412. 1936 ["1935"]. Sec. Schlumpberger (2021) Type: Acanthocalycium spiniflorum (K.Schum.) Backeb.

Acc.#1.1.1 Acanthocalycium glaucum F.Ritter in Taxon 13: 143. 1964. Sec. Hunt (2016)

Syn.#1.1.1≡ Lobivia thionantha var. glauca (F.Ritter) Rausch, Lobivia 85: 156. 1987 ["1985"] ≡ Echinopsis thionantha subsp. glauca (F.Ritter) M.Lowry in Cactaceae Syst. Init. 19: 12. 2005 ≡ Acanthocalycium thionanthum subsp. glaucum (F.Ritter) Lodé in Cact.-Avent. Int. 98(Suppl.): 2. 2013

Syn.#1.1.2= Echinopsis glaucina H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 95. 1974 syn. sec. Hunt (2016)

Acc.#1.2.1 Acanthocalycium leucanthum (Gillies ex Salm-Dyck) Schlumpb. in Cactaceae Syst. Init. 28: 29. 2012. Sec. Schlumpberger (2012)

Syn.#1.2.1≡ Echinocactus leucanthus Gillies ex Salm-Dyck, Hort. Dyck.: 341. 1834 syn. sec. Schlumpberger (2012) ≡ Cereus leucanthus (Gillies ex Salm-Dyck) Pfeiff., Enum. Diagn. Cact.: 71. 1837 syn. sec. Kew WCVP (2019) ≡ Echinopsis leucantha (Gillies ex Salm-Dyck) Walp., Repert. Bot. Syst. 2: 324. 1843

Syn.#1.2.2= Melocactus ambiguus Pfeiff. in Allg. Gartenzeitung 1: 364. 1833 syn. sec. Kew WCVP (2019)

Syn.#1.2.3= Cereus incurvispinus Otto & A.Dietr. in Allg. Gartenzeitung 3: 244. 1835 syn. sec. Kew WCVP (2019)

Syn.#1.2.4= Melocactus elegans Pfeiff. in Allg. Gartenzeitung 3: 244. 1835 syn. sec. Kew WCVP (2019)

Syn.#1.2.5= Echinonyctanthus leucanthus Lem., Cact. Gen. Sp. Nov.: 85. 1839 syn. sec. Kew WCVP (2019)

Syn.#1.2.6= Echinocactus salpigophorus Pfeiff. ex Labour., Monogr. Cactaceae: 302. 1853 syn. sec. Britton & Rose (1922)

Syn.#1.2.7= Echinopsis campylacantha var. leucantha Labour., Monogr. Cactaceae: 305. 1853 syn. sec. Britton & Rose (1922)

Syn.#1.2.8= Echinopsis campylacantha var. stylodes Monv. ex Labour., Monogr. Cactaceae: 305. 1853 syn. sec. Britton & Rose (1922)

Syn.#1.2.9= Echinopsis simplex Niedt in Allg. Gartenzeitung 25: 238. 1857 syn. sec. Britton & Rose (1922)

Syn.#1.2.10= Cereus campylacanthus (Pfeiff. & Otto) Mottet, Dict. Prat. Hort. 1: 582. 1892–1893 ≡ Echinopsis campylacantha Pfeiff. & Otto, Abbild. Beschr. Cact. 1: t. 4. 1838 syn. sec. Britton & Rose (1922)

Syn.#1.2.11= Echinopsis baldiana Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 490. 1905 syn. sec. Hunt (2016)

Syn.#1.2.12= Echinopsis cordobensis Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 489. 1905 syn. sec. Kew WCVP (2019)

Syn.#1.2.13= Echinopsis intricatissima Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 491. 1905 syn. sec. Kew WCVP (2019)

Syn.#1.2.14= Echinopsis melanopotamica Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 492. 1905 syn. sec. Hunt (2016)

Syn.#1.2.15= Echinopsis molesta Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 490. 1905 syn. sec. Hunt (2016)

Syn.#1.2.16= Echinopsis shaferi Britton & Rose, Cactaceae 3: 69. 1922 syn. sec. Hunt (2016)

Syn.#1.2.17= Echinopsis spegazziniana Britton & Rose, Cactaceae 3: 69. 1922 syn. sec. Hunt (2016)

Syn.#1.2.18= Echinopsis leucantha var. brasiliensis Speg. in Anales Soc. Ci. Argent. 99: 120. 1925 syn. sec. Kew WCVP (2019)

Syn.#1.2.19= Echinopsis gladispina Y.Itô, Explan. Diagr. Austroechinocactinae: 68. 1957 syn. sec. Kew WCVP (2019)

Syn.#1.2.20= Echinopsis leucantha var. volliana Backeb., Descr. Cact. Nov. 1: 28. 1957 ["1956"] syn. sec. Kew WCVP (2019)

Acc.#1.3.1 Acanthocalycium rhodotrichum (K.Schum.) Schlumpb. in Cactaceae Syst. Init. 28: 29. 2012. Sec. Schlumpberger (2012)

Syn.#1.3.1≡ Echinopsis rhodotricha K.Schum. in Monatsschr. Kakteenk. 10: 147. 1900 syn. sec. Schlumpberger (2012) − Acanthocalycium rhodotricum (K.Schum.) Schlumpb. in Cactaceae Syst. Init. 28: 29. 2012 syn. sec. TPL (2013) [is misspelling for Acanthocalycium rhodotrichum (K.Schum.) Schlumpb.]

Syn.#1.3.2= Echinocactus forbesii Lehm. in Repert. Bot. Syst. 2: 319. 1843 syn. sec. Kew WCVP (2019)

Syn.#1.3.3= Echinopsis forbesii A.Dietr. in Allg. Gartenzeitung 17: 193. 1849 syn. sec. Tropicos ≡ Echinopsis pentlandii var. forbesii (A.Dietr.) Rud.Mey. in Monatsschr. Kakteenk. 7: 155. 1897 syn. sec. Tropicos ≡ Echinopsis pentlandii var. forbesii (A.Dietr.) Hildm. in Monatsschr. Kakteenk. 20: 180. 1910 syn. sec. Korotkova (2021) ≡ Lobivia pentlandii var. forbesii (A.Dietr.) Y.Itô ex Backeb., Cactaceae 3: 1383. 1959

Syn.#1.3.4= Echinopsis valida var. forbesii Rud.Mey. in Monatsschr. Kakteenk. 5: 133. 1895 syn. sec. Kew WCVP (2019)

Syn.#1.3.5= Cereus validissimus F.A.C.Weber, Dict. Hort.: 473. 1896 syn. sec. Britton & Rose (1922)

Syn.#1.3.6= Echinopsis rhodotricha var. roseiflora K.Schum. in Bull. Herb. Boissier, sér. 2, 3: 251. 1903 syn. sec. Kew WCVP (2019)

Syn.#1.3.7= Echinopsis spegazzinii K.Schum. ex Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 488. 1905 syn. sec. Kew WCVP (2019)

Syn.#1.3.8= Echinopsis rhodotricha var. argentinensis Rud.Mey. in Monatsschr. Kakteenk. 21: 188. 1911 syn. sec. Kew WCVP (2019)

Syn.#1.3.9= Echinopsis rhodotricha var. robusta Rud.Mey. in Monatsschr. Kakteenk. 24: 113. 1914 syn. sec. Kew WCVP (2019)

Syn.#1.3.10= Echinopsis robinsoniana Werderm., Repert. Spec. Nov. Regni Veg. Sonderbeih. C: t. 80. 1934 syn. sec. Kew WCVP (2019)

Syn.#1.3.11= Echinopsis chacoana var. spinosior F.Ritter in Succulenta (Netherlands) 44: 26. 1965 syn. sec. Kew WCVP (2019) ≡ Echinopsis rhodotricha var. spinosior (F.Ritter) F.Ritter, Kakteen Südamerika 1: 262. 1979 syn. sec. Kew WCVP (2019)

Syn.#1.3.12= Echinopsis rhodotricha var. brevispina F.Ritter, Kakteen Südamerika 1: 263. 1979 syn. sec. Tropicos

Acc.#1.4.1 Acanthocalycium rhodotrichum subsp. chacoanum (Schütz) Schlumpb. in Willdenowia 51: 264. 2021. Sec. Schlumpberger (2021)

Syn.#1.4.1≡ Echinopsis chacoana Schütz in Kaktusář. Listy 17: 1. 1949 syn. sec. Schlumpberger (2021) ≡ Echinopsis rhodotricha var. chacoana (Schütz) F.Ritter, Kakteen Südamerika 1: 263. 1979 syn. sec. Schlumpberger (2021) ≡ Echinopsis rhodotricha subsp. chacoana (Schütz) P.J.Braun & Esteves in Succulenta (Netherlands) 74(3): 130. 1995 syn. sec. Schlumpberger (2021)

Syn.#1.4.2= Echinopsis klingleriana Cárdenas in Cactus (Paris) 85: 109. 1965 syn. sec. Hunt (2016)

Acc.#1.5.1 Acanthocalycium rhodotrichum subsp. rhodotrichum Sec. Hunt (2016)

Syn.#1.5.2= Echinopsis minuana Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 488. 1905 syn. sec. Hunt (2016)

Syn.#1.5.3= Echinopsis meyeri Heese in Gartenflora 56: 1. 1907 syn. sec. Hunt (2016)

Acc.#1.6.1 Acanthocalycium spiniflorum (K.Schum.) Backeb., Kaktus-ABC: 226. 1936 ["1935"]. Sec. Hunt (2016)

Syn.#1.6.1≡ Echinocactus spiniflorus K.Schum., Gesamtbeschr. Kakt., Nachtr. 1: 88. 1903 ≡ Echinopsis spiniflora (K.Schum.) A.Berger, Kakteen: 193. 1929 ≡ Lobivia spiniflora (K.Schum.) Rausch, Lobivia 85: 157. 1987 ["1985"]

Syn.#1.6.2= Echinopsis klimpeliana Weidlich & Werderm. in Z. Sukkulentenk. 3: 175. 1928 ≡ Lobivia klimpeliana (Weidlich & Werderm.) A.Berger, Kakteen: 196. 1929 syn. sec. Kew WCVP (2019) ≡ Acanthocalycium klimpelianum (Weidlich & Werderm.) Backeb., Kaktus-ABC: 225. 1936 ["1935"] syn. sec. Hunt (2016) ≡ Lobivia spiniflora var. klimpeliana (Weidlich & Werderm.) Rausch, Lobivia 85: 157. 1987 ["1985"]

Syn.#1.6.3= Echinopsis violacea Werderm. in Notizbl. Bot. Gart. Berlin-Dahlem 11: 262. 1931 ≡ Acanthocalycium violaceum (Werderm.) Backeb., Kaktus-ABC: 226. 1936 ["1935"] syn. sec. Hunt (2016) ≡ Lobivia spiniflora var. violacea (Werderm.) Rausch, Lobivia 85: 157. 1987 ["1985"] − Acanthocalycium spiniflorum f. violaceum (Werderm.) Donald in Ashingtonia 1: 116. 1975, nom. inval.

Syn.#1.6.4= Acanthocalycium peitscherianum Backeb., Kaktus-ABC: 225. 1936 ["1935"] syn. sec. Hunt (2016) ≡ Echinopsis peitscherana (Backeb.) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 97. 1974 syn. sec. Kew WCVP (2019) ≡ Lobivia spiniflora var. peitscheriana (Backeb.) Rausch, Lobivia 85: 158. 1987 ["1985"] syn. sec. Kew WCVP (2019) − Acanthocalycium spiniflorum f. peitscherianum (Backeb.) Donald in Ashingtonia 1: 116. 1975, nom. inval.

Syn.#1.6.5= Acanthocalycium variiflorum Backeb., Kakteenlex.: 57. 1966 syn. sec. Hunt (2016)

Syn.#1.6.6= Lobivia spiniflora var. macrantha Rausch, Lobivia 85: 158. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Acanthocalycium klimpelianum var. macranthum (Rausch) J.G.Lamb., Cactus Argentine, ed. 2: 9. 1998 syn. sec. Tropicos

Acc.#1.7.1 Acanthocalycium thionanthum (Speg.) Backeb., Kaktus-ABC: 226. 1936 ["1935"]. Sec. Hunt (2016)

Syn.#1.7.1≡ Echinocactus thionanthus Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 499. 1905 ≡ Lobivia thionantha (Speg.) Britton & Rose, Cactaceae 3: 57–58, f. 74. 1922 ≡ Echinopsis thionantha (Speg.) Werderm. in Notizbl. Bot. Gart. Berlin-Dahlem 11: 264. 1931 ≡ Echinopsis thionantha (Speg.) D.R.Hunt in Bradleya 5: 92. 1987 syn. sec. Tropicos − Lobivia thionanthus (Speg.) Britton & Rose, Cactaceae 3: 57–58, f. 74. 1922 syn. sec. TPL (2013) [is orthographic variant for Lobivia thionantha (Speg.) Britton & Rose]

Syn.#1.7.2= Echinocactus chionanthus Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 499. 1905 syn. sec. Kew WCVP (2019) ≡ Lobivia chionanthus (Speg.) Britton & Rose, Cactaceae 3: 58. 1922 ≡ Echinopsis chionantha (Speg.) Werderm. in Notizbl. Bot. Gart. Berlin-Dahlem 11: 264. 1931 ≡ Acanthocalycium chionanthum (Speg.) Backeb., Kaktus-ABC: 225. 1936 ["1935"] syn. sec. Hunt (2016) ≡ Lobivia thionantha var. chionantha (Speg.) Rausch, Lobivia 85: 156. 1987 ["1985"]

Syn.#1.7.3= Acanthocalycium griseum Backeb., Descr. Cact. Nov. 3: 5. 1963 syn. sec. Hunt (2016)

Syn.#1.7.4= Acanthocalycium brevispinum F.Ritter in Taxon 13: 144. 1964 ≡ Echinopsis brevispina (F.Ritter) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 94. 1974 ≡ Lobivia thionantha var. brevispina (F.Ritter) Rausch, Lobivia 85: 153. 1987 ["1985"]

Syn.#1.7.5= Acanthocalycium aurantiacum Rausch in Kakteen And. Sukk. 21(3): 45. 1970 syn. sec. Hunt (2016) ≡ Echinopsis aurantiaca (Rausch) H.Friedrich & G.D.Rowley in I.O.S. Bull. 3(3): 94. 1974 ≡ Lobivia thionantha var. aurantiaca (Rausch) Rausch, Lobivia 85: 156. 1987 ["1985"]

Syn.#1.7.6= Acanthocalycium catamarcense F.Ritter, Kakteen Südamerika 2: 465. 1980 syn. sec. Hunt (2016) ≡ Lobivia thionantha var. catamarcensis (F.Ritter) Rausch, Lobivia 85: 156. 1987 ["1985"] syn. sec. Kew WCVP (2019)

Syn.#1.7.7= Lobivia thionantha var. erythrantha Rausch, Lobivia 85: 155. 1987 ["1985"] syn. sec. Kew WCVP (2019)

Acc.#1.8.1 Acanthocalycium thionanthum subsp. ferrarii (Rausch) Schlumpb. in Willdenowia 51: 264. 2021. Sec. Schlumpberger (2021)

Syn.#1.8.1≡ Acanthocalycium ferrarii Rausch in Succulenta (Netherlands) 55: 82. 1976 syn. sec. Schlumpberger (2021) ≡ Lobivia thionantha var. ferrarii (Rausch) Rausch, Lobivia 85: 156. 1987 ["1985"] syn. sec. Schlumpberger (2021) ≡ Echinopsis thionantha subsp. ferrarii (Rausch) M.Lowry in Cactaceae Syst. Init. 14: 14. 2002 syn. sec. Schlumpberger (2021)

Syn.#1.8.2= Lobivia thionantha var. munita Rausch, Lobivia 85: 154. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Acanthocalycium thionanthum var. munitum (Rausch) J.G.Lamb., Cactus Argentine, ed. 2: 16. 1998 syn. sec. Kew WCVP (2019)

Syn.#1.8.3= Lobivia thionantha var. variiflora Rausch, Lobivia 85: 156. 1987 ["1985"] syn. sec. Kew WCVP (2019)

Acc.#1.9.1 Acanthocalycium thionanthum subsp. thionanthum

Acc.#2. Acanthocereus (Engelm. ex A.Berger) Britton & Rose in Contr. U.S. Natl. Herb. 12: 432. 1909. Sec. Korotkova & al. (2017) Type: Acanthocereus baxaniensis (Karw. ex Pfeiff.) Borg

Syn.#2.g1≡Cereus subsect. Acanthocereus Engelm. ex A.Berger in Rep. (Annual) Missouri Bot. Gard. 16: 77. 1905 syn. sec. Korotkova & al. (2017)

Syn.#2.0.1=Peniocereus subg. Pseudoacanthocereus Sánchez-Mej. in Cact. Suc. Mex. 19: 38. 1974 syn. sec. Korotkova & al. (2017). Type: Peniocereus maculatus (Weing.) Cutak; Cereus maculatus Weing.

Acc.#2.1.1 Acanthocereus canoensis (P.R.House, Gómez-Hin. & H.M.Hern.) S.Arias & N.Korotkova in Phytotaxa 327(1): 18. 2017. Sec. Korotkova & al. (2017)

Syn.#2.1.1≡ Peniocereus canoensis P.R.House, Gómez-Hin. & H.M.Hern. in Revista Mex. Biodivers. 84: 1077. 2013 syn. sec. Korotkova & al. (2017)

Acc.#2.2.1 Acanthocereus castellae (Sánchez-Mej.) Lodé in Cact.-Avent. Int. 98(Suppl.): 2. 2013. Sec. Korotkova & al. (2017)

Syn.#2.2.1≡ Peniocereus castellae Sánchez-Mej. in Cact. Suc. Mex. 19(1): 12. 1974 syn. sec. Korotkova & al. (2017)

Acc.#2.3.1 Acanthocereus chiapensis Bravo in Cact. Suc. Mex. 17: 117. 1972. Sec. Korotkova & al. (2017)

Syn.#2.3.1≡ Peniocereus chiapensis (Bravo) Gómez-Hin. & H.M.Hern. in Revista Mex. Biodivers. 76(2): 131. 2005 syn. sec. Korotkova & al. (2017)

Syn.#2.3.2− Acanthocereus griseus Backeb. in Cactus (Paris) 85: 103–106. 1965, nom. inval. syn. sec. Korotkova & al. (2017)

Acc.#2.4.1 Acanthocereus cuixmalensis (Sánchez-Mej.) Lodé in Cact.-Avent. Int. 98(Suppl.): 2. 2013. Sec. Korotkova & al. (2017)

Syn.#2.4.1≡ Peniocereus cuixmalensis Sánchez-Mej. in Cact. Suc. Mex. 18: 91. 1973 syn. sec. Korotkova & al. (2017)

Acc.#2.5.1 Acanthocereus fosterianus (Cutak) Lodé in Cact.-Avent. Int. 98(Suppl.): 2. 2013. Sec. Korotkova & al. (2017)

Syn.#2.5.1≡ Peniocereus fosterianus Cutak in Cact. Succ. J. (Los Angeles) 18: 19. 1946 syn. sec. Korotkova & al. (2017)

Syn.#2.5.2= Peniocereus fosterianus var. multitepalum Sánchez-Mej. in Cact. Suc. Mex. 19(2): 50. 1974 syn. sec. Korotkova & al. (2017)

Syn.#2.5.3= Peniocereus fosterianus var. nizandensis Sánchez-Mej. in Cact. Suc. Mex. 19(2): 49. 1974 syn. sec. Korotkova & al. (2017)

Acc.#2.6.1 Acanthocereus haackeanus Backeb. ex Lodé in Int. Cact. Advent. 111-112: 66. 2016. Sec. Kew WCVP (2019)

Syn.#2.6.1≡ Peniocereus haackeanus Backeb., Descr. Cact. Nov. 3: 12. 1963 syn. sec. Kew WCVP (2019) − Neoevansia haackeana (Backeb.) Sánchez-Mej. in Cact. Suc. Mex. 18: 24. 1973, nom. inval. syn. sec. Kew WCVP (2019) − Neoevansia haackiana (Backeb.) Sánchez-Mej. in Cact. Suc. Mex. 18: 24. 1973, nom. inval. syn. sec. Tropicos

Acc.#2.7.1 Acanthocereus hesperius D.R.Hunt in Cactaceae Syst. Init. 34: 9. 2016. Sec. Korotkova & al. (2017)

Syn.#2.7.2= Peniocereus occidentalis Bravo ex S.Arias, U.Guzmán & Gama in Cact. Suc. Mex. 37: 75. 1992 syn. sec. Korotkova & al. (2017) − Peniocereus occidentalis Bravo, Cact. Suc. Mex. 8: 80. 1963, nom. inval. syn. sec. Korotkova & al. (2017)

Acc.#2.8.1 Acanthocereus hirschtianus (K.Schum.) Lodé in Cact.-Avent. Int. 98(Suppl.): 2. 2013. Sec. Korotkova & al. (2017)

Syn.#2.8.1≡ Cereus hirschtianus K.Schum., Gesamtbeschr. Kakt.: 130. 1897 syn. sec. Korotkova & al. (2017) ≡ Nyctocereus hirschtianus (K.Schum.) Britton & Rose in Contr. U.S. Natl. Herb. 12: 424. 1909 syn. sec. Korotkova & al. (2017) ≡ Peniocereus hirschtianus (K.Schum.) D.R.Hunt in Bradleya 9: 90. 1991 syn. sec. Korotkova & al. (2017)

Syn.#2.8.2= Cereus neumannii K.Schum. in Bot. Jahrb. Syst. 29(1): 99. 1900 syn. sec. Korotkova & al. (2017) ≡ Nyctocereus neumannii (K.Schum. ex Loes.) Britton & Rose in Contr. U.S. Natl. Herb. 12: 424. 1909 syn. sec. Korotkova & al. (2017)

Syn.#2.8.3= Nyctocereus guatemalensis Britton & Rose in Contr. U.S. Natl. Herb. 16: 240. 1913 syn. sec. Korotkova & al. (2017) ≡ Cereus guatemalensis (Britton & Rose) Vaupel in Monatsschr. Kakteenk. 23: 86, 88. 1913 syn. sec. Korotkova & al. (2017) ≡ Peniocereus guatemalensis (Britton & Rose) D.R.Hunt in Cactaceae Syst. Init. 21: 14. 2006 syn. sec. Korotkova & al. (2017)

Acc.#2.9.1 Acanthocereus macdougallii (Cutak) Lodé in Cact.-Avent. Int. 98(Suppl.): 2. 2013. Sec. Korotkova & al. (2017)

Syn.#2.9.1≡ Peniocereus macdougallii Cutak in Cact. Succ. J. (Los Angeles) 19: 87. 1947 syn. sec. Korotkova & al. (2017)

Syn.#2.9.2− Peniocereus macdougallii var. centrispinus Backeb., Cactaceae 6: 3843. 1962, nom. inval. syn. sec. Korotkova & al. (2017)

Acc.#2.10.1 Acanthocereus maculatus Weing. ex Bravo in Anales Inst. Biol. Univ. Nac. Mexico 3: 398. 1933. Sec. Korotkova & al. (2017)

Syn.#2.10.1≡ Cereus maculatus Weing. in Kakteenkunde: 14. 1933 syn. sec. Korotkova & al. (2017) ≡ Acanthocereus maculatus (Weing.) F.M.Knuth, Kaktus-ABC: 303. 1936 ["1935"] syn. sec. Korotkova & al. (2017) ≡ Peniocereus maculatus (Weing.) Cutak in Cact. Succ. J. (Los Angeles) 23: 76. 1951 syn. sec. Korotkova & al. (2017)

Acc.#2.11.1 Acanthocereus oaxacensis (Britton & Rose) Lodé in Cact.-Avent. Int. 97: 2. 2012 ["2013"]. Sec. Korotkova & al. (2017)

Syn.#2.11.1≡ Nyctocereus oaxacensis Britton & Rose, Cactaceae 2: 120. 1920 syn. sec. Korotkova & al. (2017) ≡ Peniocereus oaxacensis (Britton & Rose) D.R.Hunt in Bradleya 9: 90. 1991 syn. sec. Korotkova & al. (2017)

Acc.#2.12.1 Acanthocereus paradoxus P.González-Zamora & Dan. Sánchez in Phytotaxa 470(2): 146. 2020. Sec. González-Zamora & al. (2020)

Acc.#2.13.1 Acanthocereus rosei (J.G.Ortega) Lodé in Cact.-Avent. Int. 98(Suppl.): 3. 2013. Sec. Korotkova & al. (2017)

Syn.#2.13.1≡ Peniocereus rosei J.G.Ortega in Revista Mex. Biol. 6: 189. 1926 syn. sec. Korotkova & al. (2017)

Acc.#2.14.1 Acanthocereus tepalcatepecanus (Sánchez-Mej.) Lodé in Cact.-Avent. Int. 98(Suppl.): 3. 2013. Sec. Korotkova & al. (2017)

Syn.#2.14.1≡ Peniocereus tepalcatepecanus Sánchez-Mej. in Cact. Suc. Mex. 19: 14. 1974 syn. sec. Korotkova & al. (2017)

Acc.#2.15.1 Acanthocereus tetragonus (L.) Hummelinck in Succulenta (Netherlands) 20: 165. 1938. Sec. Korotkova & al. (2017)

Syn.#2.15.1≡ Cactus tetragonus L., Sp. Pl.: 466. 1753 syn. sec. Korotkova & al. (2017) ≡ Cereus tetragonus (L.) Mill., Gard. Dict., ed. 8: Cereus No. 2. 1768 syn. sec. Korotkova & al. (2017)

Syn.#2.15.2= Cactus pentagonus L., Sp. Pl.: 466. 1753 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Cereus pentagonus (L.) Haw., Syn. Pl. Succ.: 180. 1812 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Acanthocereus pentagonus (L.) Britton & Rose, Cactaceae 2: 122. 1920 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#2.15.3= ?Cactus pitajaya Jacq., Enum. Syst. Pl.: 23. 1760 syn. sec. Anderson (2005) ≡ ?Cereus pitajaya (Jacq.) DC., Prodr. 3: 466. 1828 syn. sec. Anderson (2005) ≡ ?Acanthocereus pitajaya (Jacq.) Dugand ex Croizat in Caldasia 2: 135. 1943 syn. sec. Gómez-Hinostrosa (2006)

Syn.#2.15.4= Cactus prismaticus Willd., Enum. Pl., Suppl.: 32. 1814 syn. sec. Britton & Rose (1920) ≡ Cereus prismaticus (Willd.) Haw., Suppl. Pl. Succ.: 77. 1819 syn. sec. Britton & Rose (1920) ≡ Cereus prismaticus (Willd.) Haw. ex Steud., Nomencl. Bot., ed. 2, 1: 335. 1840 syn. sec. Korotkova (2021)

Syn.#2.15.5= Cactus reptans Salm-Dyck ex DC., Prodr. 3: 468. 1828 syn. sec. Kew WCVP (2019)

Syn.#2.15.6= Cereus tetragonus var. ramosior Link & Otto in Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 6: 432. 1830 syn. sec. Britton & Rose (1920)

Syn.#2.15.7= Cereus tetragonus var. minor Salm-Dyck, Hort. Dyck.: 337. 1834 syn. sec. Kew WCVP (2019)

Syn.#2.15.8= Cereus acutangulus Pfeiff., Enum. Diagn. Cact.: 107. 1837 syn. sec. Hunt (2006) ≡ Acanthocereus acutangulus (Pfeiff.) A.Berger, Kakteen: 337, indice 124. 1929 syn. sec. Hunt (2006)

Syn.#2.15.9= Cereus baxaniensis Karw. ex Pfeiff., Enum. Diagn. Cact.: 108. 1837 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Acanthocereus baxaniensis (Karw. ex Pfeiff.) Borg, Cacti, ed. 1: 132. 1937 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#2.15.10= Cereus princeps Pfeiff., Enum. Diagn. Cact.: 108. 1837 syn. sec. Guzmán Cruz & al. (2003) ≡ Acanthocereus princeps (Pfeiff.) Backeb., Descr. Cact. Nov. 3: 5. 1963 syn. sec. Hunt (2016)

Syn.#2.15.11= Cereus ramosus Karw. ex Pfeiff., Enum. Diagn. Cact.: 108. 1837 syn. sec. Britton & Rose (1920)

Syn.#2.15.12= Cereus undulatus Pfeiff., Enum. Diagn. Cact.: 107. 1837 syn. sec. Kew WCVP (2019)

Syn.#2.15.13= Cereus tetragonus var. major Salm-Dyck ex Walp., Repert. Bot. Syst. 2: 277. 1843 syn. sec. Britton & Rose (1920)

Syn.#2.15.14= Cereus pentagonus C.F.Först., Handb. Cacteenk.: 389. 1846 syn. sec. Tropicos

Syn.#2.15.15= Cereus nitidus Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 211. 1850 syn. sec. Kew WCVP (2019)

Syn.#2.15.16= Cereus variabilis Engelm., Descr. Cactaceae: 40. 1856 syn. sec. Britton & Rose (1920)

Syn.#2.15.17= Cereus vasmerii Young, Fl. Texas: 276. 1873 syn. sec. Kew WCVP (2019)

Syn.#2.15.18= Cereus babosus F.A.C.Weber in Schumann, Gesamtbeschr. Kakt.: 84. 1897 syn. sec. Korotkova & al. (2017)

Syn.#2.15.19= Cereus dussii K.Schum., Gesamtbeschr. Kakt.: 89. 1897 syn. sec. Britton & Rose (1920)

Syn.#2.15.20= Cereus sirul F.A.C.Weber in Bull. Mus. Hist. Nat. (Paris) 11: 384. 1904 syn. sec. Britton & Rose (1920)

Syn.#2.15.21= Acanthocereus colombianus Britton & Rose, Cactaceae 2: 122. 1920 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#2.15.22= Acanthocereus horridus Britton & Rose, Cactaceae 2: 122, fig. 181. 1920 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#2.15.23= Acanthocereus occidentalis Britton & Rose, Cactaceae 2: 125, fig. 185. 1920 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#2.15.24= Acanthocereus subinermis Britton & Rose, Cactaceae 2: 125. 1920 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#2.15.25= Acanthocereus floridanus Small ex Britton & Rose, Cactaceae 4: 276. 1923 syn. sec. Hunt (2006)

Syn.#2.15.26= Cereus horribilis A.Berger, Kakteen: 124, 338. 1929 syn. sec. Kew WCVP (2019)

Syn.#2.15.27= Acanthocereus tetragonus var. micracanthus Dugand in Phytologia 13: 383. 1966 syn. sec. Guzmán Cruz & al. (2003)

Syn.#2.15.28− Cereus reptans Haw. ex Steud., Nomencl. Bot., ed. 2, 1: 335. 1840, nom. inval. syn. sec. Kew WCVP (2019)

Acc.#3. Acharagma (N.P.Taylor) Glass, Guía Identific. Cact. Amenazadas México: Ac/Ag. 1997 ["1998"]. Sec. Vázquez-Sánchez & al. (2013) Type: Acharagma roseanum (Boed.) E.F.Anderson

Syn.#3.g1≡Escobaria sect. Acharagma N.P.Taylor in Kakteen And. Sukk. 34: 185. 1983 syn. sec. Hunt (2006)

Acc.#3.1.1 Acharagma aguirreanum (Glass & R.A.Foster) Glass, Guía Identific. Cact. Amenazadas México: Ac/ag. 1997 ["1998"]. Sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#3.1.1≡ Gymnocactus aguirreanus Glass & R.A.Foster in Cact. Succ. J. (Los Angeles) 44(2): 80. 1972 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Thelocactus aguirreanus (Glass & R.A.Foster) Bravo in Cact. Suc. Mex. 25: 65. 1980 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Escobaria aguirreana (Glass & R.A.Foster) N.P.Taylor in Kakteen And. Sukk. 34: 185. 1983 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Acc.#3.2.1 Acharagma roseanum (Boed.) E.F.Anderson in Cact. Succ. J. (Los Angeles) 71(6): 323. 1999. Sec. Hernández & GómezHinostrosa (2011)

Syn.#3.2.1≡ Echinocactus roseanus Boed. in Z. Sukkulentenk.: 363. 1928 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Neolloydia roseana (Boed.) F.M.Knuth, Kaktus-ABC: 368. 1936 ["1935"] syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Thelocactus roseanus (Boed.) Borg, Cacti, ed. 1: 282. 1937 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Escobaria roseana (Boed.) Buxb. in Oesterr. Bot. Z. 98: 79. 1951 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Coryphantha roseana (Boed.) Moran in Gentes Herbarum 8: 318. 1953 syn. sec. Hernández & Gómez-Hinostrosa (2011) ≡ Gymnocactus roseanus (Boed.) Glass & R.A.Foster in Cact. Succ. J. (Los Angeles) 42: 234. 1970 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Acc.#3.3.1 Acharagma roseanum subsp. galeanensis (Haugg) D.R.Hunt in Cactaceae Syst. Init. 14: 7. 2002. Sec. Hernández & GómezHinostrosa (2011)

Syn.#3.3.1≡ Escobaria roseana subsp. galeanensis Haugg in Kakteen And. Sukk. 46: 76. 1995 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#3.3.2= Acharagma huasteca Elhart in CactusWorld 29: 105. 2011 syn. sec. Hernández & Gómez-Hinostrosa (2011)

Acc.#3.4.1 Acharagma roseanum subsp. roseanum. Sec. Hernández & Gómez-Hinostrosa (2011)

Acc.#4. Airampoa Frič, Akklim. Versuchs-Gart.: 1. 1933. Sec. Doweld (2002) Type: Airampoa aurata Frič

Syn.#4.g1= Tunilla D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 10. 2000, nom. superfl. syn. sec. Doweld (2002). Type: Tunilla soehrensii (Britton & Rose) D.R.Hunt & Iliff

Acc.#4.1.1 Airampoa albisaetacens (Backeb.) Doweld in Turczaninowia 5: 28. 2002. Sec. Doweld (2002)

Syn.#4.1.1≡ Opuntia albisaetacens Backeb., Kaktus-ABC: 127, 411. 1936 ["1935"] syn. sec. Doweld (2002) ≡ Platyopuntia albisaetacens (Backeb.) F.Ritter, Kakteen Südamerika 2: 501. 1980 syn. sec. Doweld (2002) ≡ Tunilla albisaetacens (Backeb.) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 10. 2000 syn. sec. Doweld (2002)

Syn.#4.1.2= Opuntia albisaetacens var. robustior Backeb. in Cactus (Paris) 75: 32. 1962 syn. sec. Doweld (2002)

Acc.#4.2.1 Airampoa armata (Backeb.) Doweld in Turczaninowia 5: 28. 2002. Sec. Doweld (2002)

Syn.#4.2.1≡ Opuntia armata Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Doweld (2002)

Acc.#4.3.1 Airampoa ayrampo (Azara) Doweld in Turczaninowia 5: 28. 2002. Sec. Doweld (2002)

Syn.#4.3.1≡ Cactus ayrampo Azara, Voy. Amér. Mér. 2: 526. 1809 syn. sec. Doweld (2002) ≡ Opuntia ayrampo (Azara) Mottram in Tephrocactus Study Group 10: 10. 2004 syn. sec. Doweld (2002)

Syn.#4.3.2= Opuntia haenquiana Herrera in Rev. Univ. Cuzco 8: 60. 1919 syn. sec. Doweld (2002)

Syn.#4.3.3= Opuntia soehrensii Britton & Rose, Cactaceae 1: 134-135. 1919 syn. sec. Doweld (2002) ≡ Platyopuntia soehrensii (Britton & Rose) F.Ritter, Kakteen Südamerika 2: 411. 1980 syn. sec. Doweld (2002) ≡ Tunilla soehrensii (Britton & Rose) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 11. 2000 syn. sec. Doweld (2002) ≡ Tephrocactus soehrensii (Britton & Rose) G.D.Rowley in Tephrocactus Study Group 12(3): 46. 2006 syn. sec. Kew WCVP (2019) ≡ Airampoa soehrensii (Britton & Rose) Lodé, Int. Cact. Advent. 111-112: 67. 2016

Syn.#4.3.4= Opuntia poecilacantha Backeb., Cactaceae 6: 6. 1962 syn. sec. Doweld (2002)

Syn.#4.3.5= Platyopuntia soehrensii var. grandiflora F.Ritter, Kakteen Südamerika 2: 501. 1980 syn. sec. Kew WCVP (2019)

Syn.#4.3.6= Platyopuntia soehrensii var. transiens F.Ritter, Kakteen Südamerika 3: 888. 1980 syn. sec. Kew WCVP (2019)

Acc.#4.4.1 Airampoa boliviensis (Backeb.) Doweld in Turczaninowia 5: 29. 2002. Sec. Doweld (2002)

Syn.#4.4.1≡ Opuntia boliviensis Backeb., Kaktus-ABC: 128, 411. 1936 ["1935"] syn. sec. Doweld (2002)

Acc.#4.5.1 Airampoa cedergreniana (Backeb.) Doweld in Turczaninowia 5: 29. 2002. Sec. Doweld (2002)

Syn.#4.5.1≡ Opuntia cedergreniana Backeb., Kaktus-ABC: 411. 1936 ["1935"] syn. sec. Doweld (2002)

Acc.#4.6.1 Airampoa chilensis (F.Ritter) Doweld in Turczaninowia 5: 29. 2002. Sec. Doweld (2002)

Syn.#4.6.1≡ Platyopuntia chilensis F.Ritter, Kakteen Südamerika 3: 889. 1980 syn. sec. Doweld (2002) ≡ Tunilla chilensis (F.Ritter) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 10. 2000 syn. sec. Doweld (2002)

Syn.#4.6.2= Opuntia alcerrecensis Iliff in Cactaceae Consensus Init. 2: 9. 1997 syn. sec. Doweld (2002)

Acc.#4.7.1 Airampoa corrugata (Salm-Dyck) Doweld in Turczaninowia 5: 29. 2002. Sec. Doweld (2002)

Syn.#4.7.1≡ Opuntia corrugata Salm-Dyck, Hort. Dyck.: 360. 1834 ≡ Opuntia corrugata Hort.Angl. ex Otto in Allg. Gartenzeitung 1: 367. 1833 ≡ Cactus corrugatus (Salm-Dyck) Lem., Cactées: 88. 1868 ≡ Tephrocactus corrugatus (Salm-Dyck) Kreuz., Verzeichnis Amer. Sukk. Rev. Syst. Kakteen: 41. 1935 ≡ Tephrocactus corrugatus (Salm-Dyck) Backeb., Kaktus-ABC: 113. 1936 ["1935"] ≡ Opuntia corrugata (Salm-Dyck) Backeb. in Cactus (Paris) 38: 250. 1953 ≡ Opuntia longispina var. corrugata (Salm-Dyck) Backeb. in Cactus (Paris) 38: 250. 1953

Syn.#4.7.2= Opuntia longispina Haw. in Philos. Mag. Ann. Chem. 7: 111. 1830 syn. sec. Kew WCVP (2019)

Syn.#4.7.3= Opuntia eburnea Lem., Cact. Aliq. Nov.: 35. 1838 syn. sec. Doweld (2002)

Syn.#4.7.4= Opuntia parmentieri Pfeiff. in Allg. Gartenzeitung 6: 276. 1838 syn. sec. Kew WCVP (2019)

Syn.#4.7.5= Opuntia retrospinosa Lem., Cact. Aliq. Nov.: 35. 1838 syn. sec. Kew WCVP (2019)

Syn.#4.7.6= Echinocactus corrugatus (Gillies ex Loudon) Steud., Nomencl. Bot., ed. 2, 1: 536. 1840 syn. sec. Britton & Rose (1922) ≡ Platyopuntia corrugata (Gillies ex Loudon) F.Ritter, Kakteen Südamerika 2: 410. 1980, nom. illeg. syn. sec. Doweld (2002) ≡ Tunilla corrugata (Gillies ex Loudon) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 10. 2000 syn. sec. Doweld (2002) − Cactus corrugatus Gillies ex Loudon, Hort. Brit.: 194. 1830, nom. nud. syn. sec. Hunt & Iliff (2000)

Syn.#4.7.7= Opuntia corrugata var. monvillei Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 72. 1850 syn. sec. Kew WCVP (2019)

Syn.#4.7.8= Opuntia eborina C.F.Först. ex Haage, Verz. Cact.: 29. 1864 syn. sec. Kew WCVP (2019)

Syn.#4.7.9= Tephrocactus retrospinosus Lem., Cactées: 88. 1868 syn. sec. Kew WCVP (2019) ≡ Tephrocactus retrospinosus Lem. ex C.F.Först., Handb. Cacteenk., ed. 2: 911. 1885 syn. sec. Korotkova (2021) ≡ Tephrocactus retrospinus Lem. ex C.F.Först., Handb. Cacteenk., ed. 2: 911. 1885 syn. sec. Kew WCVP (2019)

Syn.#4.7.10= Opuntia aulacothele F.A.C.Weber in Bull. Mus. Hist. Nat. (Paris) 10: 392. 1904 syn. sec. Doweld (2002)

Syn.#4.7.11= Opuntia corrugata var. brevispina Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Doweld (2002) ≡ Opuntia corrugata subsp. brevispina (Backeb.) Mottram in Tephrocactus Study Group 10: 56. 2004

Syn.#4.7.12= Opuntia corrugata var. flavidispina Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Doweld (2002)

Syn.#4.7.13= Opuntia corrugata var. intermedia Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Doweld (2002)

Syn.#4.7.14= Opuntia longispina var. brevispina Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Kew WCVP (2019)

Syn.#4.7.15= Opuntia longispina var. flavidispina Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Kew WCVP (2019)

Syn.#4.7.16= Opuntia longispina var. intermedia Backeb. in Cactus (Paris) 38: 250. 1953 syn. sec. Kew WCVP (2019)

Syn.#4.7.17= Opuntia longispina var. agglomerata Backeb. in Cactus (Paris) 75: 32. 1962 syn. sec. Doweld (2002)

Acc.#4.8.1 Airampoa erectoclada (Backeb.) Doweld in Turczaninowia 5: 29. 2002. Sec. Doweld (2002)

Syn.#4.8.1≡ Opuntia erectoclada Backeb., Kaktus-ABC: 128, 411. 1936 ["1935"] syn. sec. Doweld (2002) ≡ Tunilla erectoclada (Backeb.) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 10. 2000 syn. sec. Doweld (2002) ≡ Tephrocactus erectocladus (Backeb.) G.D.Rowley in Tephrocactus Study Group 12(3): 46. 2006 syn. sec. Korotkova (2021)

Syn.#4.8.2= Opuntia multiareolata Backeb. in Cactus (Paris) 75: 32. 1962 syn. sec. Doweld (2002)

Acc.#4.9.1 Airampoa ianthinantha (F.Ritter) Doweld in Turczaninowia 5: 29. 2002. Sec. Doweld (2002)

Syn.#4.9.1≡ Platyopuntia ianthinantha F.Ritter, Kakteen Südamerika 2: 413. 1980 syn. sec. Doweld (2002) ≡ Opuntia ianthinantha (F.Ritter) Iliff in Cactaceae Consensus Init. 2: 8. 1997 syn. sec. Doweld (2002) ≡ Tunilla ianthinantha (F.Ritter) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 10. 2000 syn. sec. Doweld (2002)

Acc.#4.10.1 Airampoa microdisca (F.A.C.Weber) Doweld in Turczaninowia 5: 29. 2002. Sec. Doweld (2002)

Syn.#4.10.1≡ Opuntia microdisca F.A.C.Weber in Bois, Dict. Hort.: 896. 1898 syn. sec. Doweld (2002) ≡ Platyopuntia microdisca (F.A.C.Weber) F.Ritter, Kakteen Südamerika 2: 408. 1980 syn. sec. Doweld (2002) ≡ Tunilla microdisca (F.A.C.Weber) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 11. 2000 syn. sec. Doweld (2002) ≡ Tephrocactus microdiscus (F.A.C.Weber) G.D.Rowley in Tephrocactus Study Group 12(3): 46. 2006 syn. sec. Korotkova (2021)

Syn.#4.10.2= Opuntia calantha Griffiths in Bull. Torrey Bot. Club 43: 524. 1916 syn. sec. Kew WCVP (2019)

Syn.#4.10.3= Airampoa aurata Frič, Neue Kakt. Sudamer. Hochgeb.: 1. 1929 syn. sec. Doweld (2002)

Syn.#4.10.4= Opuntia laetevirens Backeb. in Cactus (Paris) 75: 32. 1962 syn. sec. Doweld (2002)

Acc.#4.11.1 Airampoa minuscula (Backeb.) Doweld in Turczaninowia 5: 30. 2002. Sec. Doweld (2002)

Syn.#4.11.1≡ Tephrocactus minusculus Backeb., Kaktus-ABC: 109, 410. 1936 ["1935"] syn. sec. Doweld (2002) ≡ Opuntia minuscula (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958 syn. sec. Doweld (2002) ≡ Tunilla minuscula (Backeb.) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 11. 2000 syn. sec. Doweld (2002)

Acc.#4.12.1 Airampoa orurensis (Cárdenas) Doweld in Turczaninowia 5: 30. 2002. Sec. Doweld (2002)

Syn.#4.12.1≡ Opuntia orurensis Cárdenas in Cact. Succ. J. (Los Angeles) 28: 112, f. 75–76. 1956 syn. sec. Doweld (2002) ≡ Platyopuntia orurensis (Cárdenas) F.Ritter, Kakteen Südamerika 2: 502. 1980 syn. sec. Doweld (2002) ≡ Tunilla orurensis (Cárdenas) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 11. 2000 syn. sec. Doweld (2002)

Acc.#4.13.1 Airampoa panellana (Backeb.) Doweld in Turczaninowia 5: 30. 2002. Sec. Doweld (2002)

Syn.#4.13.1≡ Opuntia armata var. panellana Backeb., Descr. Cact. Nov. 1: 9. 1957 ["1956"] syn. sec. Doweld (2002) ≡ Opuntia panellana (Backeb.) Backeb., Cactaceae 6: 3619. 1962 syn. sec. Doweld (2002)

Acc.#4.14.1 Airampoa picardoi (Marn.-Lap.) Doweld in Turczaninowia 5: 30. 2002. Sec. Doweld (2002)

Syn.#4.14.1≡ Opuntia picardoi Marn.-Lap. in Cactus (Paris) 66: 4. 1960 syn. sec. Doweld (2002) ≡ Tunilla picardoi (Marn.-Lap.) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 11. 2000 syn. sec. Doweld (2002)

Syn.#4.14.2= Opuntia obliqua Backeb. in Cactus (Paris) 75: 32. 1962 syn. sec. Doweld (2002)

Syn.#4.14.3= Tunilla picardoi Marn.-Lap. ex Guiggi & Delanoy in Haseltonia 12: 13. 2007 ["2006"] syn. sec. Doweld (2002)

Acc.#4.15.1 Airampoa silvestris (Backeb.) Doweld in Turczaninowia 5: 30. 2002. Sec. Doweld (2002)

Syn.#4.15.1≡ Opuntia silvestris Backeb. in Cact. J. (Croydon) 1: 7. 1932 syn. sec. Hunt (2016) ≡ Tephrocactus silvestris (Backeb.) Backeb., Kaktus-ABC: 109, 410. 1936 ["1935"] syn. sec. Hunt (2016) ≡ Opuntia minuscula var. silvestris (Backeb.) Krainz, Städtische Sukkulentensammlung Zürich, Kat. Kult. Stehenden Art., ed. 2: 95. 1967 syn. sec. Doweld (2002) ≡ Tunilla silvestris (Backeb.) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 11. 2000 syn. sec. Hunt (2016)

Acc.#4.16.1 Airampoa tilcarensis (Backeb.) Doweld in Turczaninowia 5: 30. 2002. Sec. Doweld (2002)

Syn.#4.16.1≡ Opuntia tilcarensis Backeb., Kaktus-ABC: 128, 411. 1936 ["1935"] ≡ Platyopuntia soehrensii var. tilcarensis (Backeb.) F.Ritter, Kakteen Südamerika 2: 412. 1980 ≡ Tunilla tilcarensis (Backeb.) D.R.Hunt & Iliff in Cactaceae Syst. Init. 9: 11. 2000 ≡ Tephrocactus tilcarensis (Backeb.) G.D.Rowley in Tephrocactus Study Group 12(3): 46. 2006

Syn.#4.16.2= Opuntia tilcarensis var. rubellispina Backeb. in Cactus (Paris) 75: 32. 1962 syn. sec. Doweld (2002)

Acc.#5. Aporocactus Lem., Ill. Hort. Misc. 7: 67. 1860. Sec. Korotkova & al. (2017) Type: Aporocactus flagelliformis (L.) Lem.

Acc.#5.1.1 Aporocactus flagelliformis (L.) Lem., Ill. Hort. Misc. 7: 67. 1860. Sec. Korotkova & al. (2017)

Syn.#5.1.1≡ Cactus flagelliformis L., Sp. Pl.: 467. 1753 syn. sec. Korotkova & al. (2017) ≡ Cereus flagelliformis (L.) Mill., Gard. Dict., ed. 8: Cereus No. 12. 1768 syn. sec. Korotkova & al. (2017) ≡ Disocactus flagelliformis (L.) Barthlott in Bradleya 9: 87. 1991 syn. sec. Korotkova & al. (2017)

Syn.#5.1.2= Cereus leptophis DC. in Mém. Mus. Hist. Nat. 17: 117. 1828 syn. sec. Korotkova & al. (2017) ≡ Cereus flagelliformis var. leptophis (DC.) K.Schum., Gesamtbeschr. Kakt.: 143. 1897 syn. sec. Kew WCVP (2019) ≡ Aporocactus leptophis (DC.) Britton & Rose in Contr. U.S. Natl. Herb. 12: 435. 1909 syn. sec. Korotkova & al. (2017) ≡ Aporocactus flagelliformis var. leptophis (DC.) P.V.Heath in Calyx 2: 60. 1992 syn. sec. Korotkova & al. (2017)

Syn.#5.1.3= Cereus flagelliformis var. minor Salm-Dyck, Hort. Dyck.: 64. 1834 syn. sec. Kew WCVP (2019)

Syn.#5.1.4= Cereus flagelliformis var. minor Salm-Dyck ex Pfeiff., Enum. Diagn. Cact.: 111. 1837 syn. sec. Kew WCVP (2019)

Syn.#5.1.5= Cereus flagriformis Zucc. ex Pfeiff., Enum. Diagn. Cact.: 111. 1837 syn. sec. Korotkova & al. (2017) ≡ Aporocactus flagriformis (Zucc. ex Pfeiff.) Lem., Cactées: 58. 1868 syn. sec. Korotkova & al. (2017) ≡ Aporocactus flagriformis (Zucc. ex Pfeiff.) Britton & Rose in Contr. U.S. Natl. Herb. 12: 435. 1909 syn. sec. Korotkova & al. (2017) ≡ Disocactus flagriformis (Zucc. ex Pfeiff.) Scheinvar, Fl. Cactológ. Est. Querétaro: 156. 2004 syn. sec. Korotkova & al. (2017) − Discocactus flagriformis (Zucc. ex Pfeiff.) Scheinvar, Fl. Cactológ. Est. Querétaro: 156. 2004 syn. sec. TPL (2013) [is misspelling for Disocactus flagriformis (Zucc. ex Pfeiff.) Scheinvar]

Syn.#5.1.6= Cereus minor Weing. in Monatsschr. Kakteenk. 18: 49. 1908 syn. sec. Britton & Rose (1920)

Syn.#5.1.7= Aporocactus flagelliformis var. pfeifferi P.V.Heath in Calyx 2: 60. 1992 syn. sec. Korotkova & al. (2017)

Acc.#5.2.1 Aporocactus martianus (Zucc.) Britton & Rose, Cactaceae 2: 220. 1920. Sec. Korotkova & al. (2017)

Syn.#5.2.1≡ Cereus martianus Zucc. in Flora 15(2), Beibl: 66. 1832 syn. sec. Korotkova & al. (2017) ≡ Eriocereus martianus (Zucc.) Riccob. in Boll. Reale Orto Bot. Palermo 8: 240. 1909 syn. sec. Korotkova & al. (2017) ≡ Disocactus martianus (Zucc.) Barthlott in Bradleya 9: 88. 1991 syn. sec. Korotkova & al. (2017)

Syn.#5.2.2= Cereus martianus Zucc. ex Pfeiff., Enum. Diagn. Cact.: 110. 1837 syn. sec. Kew WCVP (2019)

Syn.#5.2.3= Aporocactus conzattii Britton & Rose, Cactaceae 2: 220. 1920 syn. sec. Korotkova & al. (2017) ≡ Cereus conzattii (Britton & Rose) A.Berger, Kakteen: 110. 1929 syn. sec. Korotkova & al. (2017) ≡ Aporocactus martianus var. conzattii (Britton & Rose) P.V.Heath in Calyx 2: 60. 1992 syn. sec. Korotkova & al. (2017)

Acc.#5.3.1 Aporocactus ×moennighoffii (D.F.Fisch.) Borg, Cacti, ed. 1: 171. 1937

Syn.#5.3.1≡ Cereus moennighoffii D.F.Fisch. in Monatsschr. Kakteenk. 15: 143. 1905 ≡ Aporocactus moennighoffii (D.F.Fisch.) Borg, Cacti, ed. 1: 171. 1937 syn. sec. TPL (2013) − Cereus moennighoffi D.F.Fisch. in Monatsschr. Kakteenk. 15: 143. 1905 [is misspelling for Cereus moennighoffii D.F.Fisch.]

Acc.#6. Ariocarpus Scheidw. in Bull. Acad. Roy. Sci. Bruxelles 5: 491. 1838. Sec. Vázquez-Sánchez & al. (2013) Type: Ariocarpus retusus Scheidw.

Syn.#6.g1= Anhalonium Lem., Cact. Gen. Sp. Nov.: 1. 1839 syn. sec. Tropicos. Type: Anhalonium prismaticum Lem.

Syn.#6.0.2= Stromatocactus Karw. ex Rümpler, Handb. Cacteenk., ed. 2: 229. 1885 syn. sec. Kew WCVP (2019). Type: Stromatocactus kotschoubeyi Karw. ex Rümpler – Stromatocarpus, nom. inval. syn. sec. Berendsohn

Syn.#6.0.3= Neogomesia Castañeda in Cact. Succ. J. (Los Angeles) 13: 98. 1941 syn. sec. Hunt (2006). Type: Neogomesia agavoides Castañeda

Syn.#6.0.4= Roseocactus A.Berger in J. Wash. Acad. Sci. 15: 45 syn. sec. Hunt (2006). Type: Roseocactus fissuratus (Engelm.) A.Berger

Acc.#6.1.1 Ariocarpus agavoides (Castañeda) E.F.Anderson in Amer. J. Bot. 49: 615. 1962. Sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#6.1.1≡ Neogomesia agavoides Castañeda in Cact. Succ. J. (Los Angeles) 13: 99. 1941 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus kotschoubeyanus subsp. agavoides (Castañeda) Halda in Acta Mus. Richnov., Sect. Nat., 5: 35. 1998 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.1.2= Ariocarpus agavoides subsp. pulcher Halda & Horáček in Acta Mus. Richnov., Sect. Nat., 10: 149. 2003 syn. sec. Kew WCVP (2019)

Syn.#6.1.3= Ariocarpus agavoides subsp. sanluisensis Sotom., Arred., Sánchez Barra & Mart.Mend. in Brit. Cact. Succ. J. 21: 100. 2003 syn. sec. Kew WCVP (2019)

Acc.#6.2.1 Ariocarpus bravoanus H.M.Hern. & E.F.Anderson in Bradleya 10: 1. 1992. Sec. Hunt (2016)

Syn.#6.2.1≡ Ariocarpus kotschoubeyanus subsp. bravoanus (H.M.Hern. & E.F.Anderson) Halda in Acta Mus. Richnov., Sect. Nat., 5: 35. 1998 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus fissuratus subsp. bravoanus (H.M.Hern. & E.F.Anderson) Lüthy in Kakteen And. Sukk. 50: 278. 1999 syn. sec. Guzmán Cruz & al. (2003)

Acc.#6.3.1 Ariocarpus bravoanus subsp. bravoanus. Sec. Hunt (2016)

Acc.#6.4.1 Ariocarpus bravoanus subsp. hintonii (Stuppy & N.P.Taylor) E.F.Anderson & W.A.Fitz Maur. in Haseltonia 5: 11. 1998. Sec. Hunt (2016)

Syn.#6.4.1≡ Ariocarpus fissuratus var. hintonii Stuppy & N.P.Taylor in Bradleya 7: 84. 1989 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus fissuratus subsp. hintonii (Stuppy & N.P.Taylor) Halda in Acta Mus. Richnov., Sect. Nat., 5: 36. 1998 syn. sec. Tropicos

Acc.#6.5.1 Ariocarpus ×drabi Halda & Sladk. in Acta Mus. Richnov., Sect. Nat., 7: 33. 2000. Sec. WFO 2019

Acc.#6.6.1 Ariocarpus ×dubeniorum Halda & Malina in Acta Mus. Richnov., Sect. Nat., 9(1): 52. 2002. Sec. WFO 2019

Acc.#6.7.1 Ariocarpus fissuratus (Engelm.) K.Schum. in Engler & Prantl, Nat. Pflanzenfam. 3(6a): 195. 1894. Sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#6.7.1≡ Mammillaria fissurata Engelm., Syn. Cact. U. S.: 14. 1856 syn. sec. Parfitt & Gibson (2003) ≡ Anhalonium fissuratum (Engelm.) Engelm., Descr. Cact.: 75. 1856 ≡ Roseocactus fissuratus (Engelm.) A.Berger in J. Wash. Acad. Sci. 15(3): 46. 1925 syn. sec. Tropicos ≡ Ariocarpus fissuratus subsp. fissuratus ≡ Ariocarpus fissuratus var. fissuratus

Syn.#6.7.2= Anhalonium engelmannii Lem., Cactées: 42. 1868 syn. sec. Tropicos

Syn.#6.7.3= Ariocarpus lloydii Rose in Contr. U.S. Natl. Herb. 13: 308. 1911 syn. sec. Hunt (2016) ≡ Roseocactus lloydii (Rose) A.Berger in J. Wash. Acad. Sci. 15(3): 43. 1925 syn. sec. Tropicos ≡ Ariocarpus fissuratus var. lloydii (Rose) W.T.Marshall in Marshall & Bock, Cactaceae: 135. 1941 syn. sec. Tropicos ≡ Ariocarpus fissuratus subsp. lloydii (Rose) U.Guzmán in Cactaceae Syst. Init. 16: 16. 2003 syn. sec. Tropicos

Syn.#6.7.4= Ariocarpus lloydii var. mayor Frič in Život v Přír. 29(1): 15. 1925 syn. sec. Vázquez-Sánchez & al. (2013)

Syn.#6.7.5= Roseocactus intermedius Backeb. & Kilian in Kakteen And. Sukk. 11: 149. 1960 syn. sec. Kew WCVP (2019)

Syn.#6.7.6= Ariocarpus fissuratus subsp. pailanus Halda in Acta Mus. Richnov., Sect. Nat., 5(5): 184. 1998 syn. sec. Hunt (2016)

Syn.#6.7.7− Roseocactus fissurams A.Berger in J. Wash. Acad. Sci. 15: 46. 1925 syn. sec. TPL (2013) [is misspelling for Roseocactus fissuratus (Engelm.) A.Berger]

Acc.#6.8.1 Ariocarpus kotschoubeyanus (Lem.) K.Schum., Nat. Pflanzenfam. Nachtr. 1: 259. 1897. Sec. Hernández & GómezHinostrosa (2011)

Syn.#6.8.1≡ Anhalonium kotschoubeyanum Lem. in Cels Cat., Bull. Cercle Conf. Hort. Dép. Seine: [unpaged?]. 1842 syn. sec. Guzmán Cruz & al. (2003) ≡ Roseocactus kotschoubeyanus (Lem.) A.Berger in J. Wash. Acad. Sci. 15(3): 48. 1925 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.8.2= Cactus kotschoubeyi Karw., Hort. Universel 6: 63. 1845 syn. sec. Britton & Rose (1922)

Syn.#6.8.3= Anhalonium kotchubeyi Lem. ex Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 5. 1850 syn. sec. Kew WCVP (2019)

Syn.#6.8.4= Anhalonium sulcatum Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 5. 1850 syn. sec. Vázquez-Sánchez & al. (2013) ≡ Ariocarpus sulcatus (Salm-Dyck) K.Schum. in Engler & Prantl, Nat. Pflanzenfam. 3(6a): 195. 1894 syn. sec. Vázquez-Sánchez & al. (2013)

Syn.#6.8.5= Anhalonium fissipedum Monv. ex C.F.Först., Handb. Cacteenk., ed. 2: 232. 1885 syn. sec. Kew WCVP (2019)

Syn.#6.8.6= Ariocarpus rotchubeyanus Cobbold in J. Hort. Home Farm. III. 46: 332. 1903 syn. sec. Kew WCVP (2019)

Syn.#6.8.7= Ariocarpus macdowellii W.T.Marshall in Marshall & Bock, Cactaceae: 135. 1941 syn. sec. Guzmán Cruz & al. (2003) ≡ Roseocactus kotschoubeyanus subsp. macdowellii Backeb. in Blätt. Sukkulentenk. 1: 8. 1949 syn. sec. Guzmán Cruz & al. (2003) ≡ Roseocactus kotschoubeyanus var. macdowellii (Backeb.) Backeb., Cactaceae 5: 3075. 1961 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.8.8= Ariocarpus kotschoubeyanus var. elephantidens Skarupke in Stachelpost 9: 33. 1973 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus kotschoubeyanus subsp. elephantidens Halda in Acta Mus. Richnov., Sect. Nat., 5: 185. 1998 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.8.9= Ariocarpus kotschoubeyanus subsp. albiflorus (Backeb.) Glass, Guía Identific. Cact. Amenazadas México: Ar/ko ssp. albiflorus. 1997 ["1998"] syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus kotschoubeyanus var. albiflorus Backeb. ex Glass syn. sec. Guzmán Cruz & al. (2003) ≡ Roseocactus kotschoubeyanus var. albiflorus Backeb. syn. sec. Anderson (1963)

Syn.#6.8.10= Ariocarpus kotschoubeyanus subsp. sladkovskyi Halda & Horáček in Acta Mus. Richnov., Sect. Nat., 5: 185. 1998 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.8.11= Ariocarpus kotschoubeyanus subsp. tulensis Halda in Acta Mus. Richnov., Sect. Nat., 5: 35. 1998 syn. sec. Kew WCVP (2019)

Syn.#6.8.12= Ariocarpus kotschoubeyanus subsp. neotulensis Halda in Acta Mus. Richnov., Sect. Nat., 9: 51. 2002 syn. sec. Kew WCVP (2019)

Syn.#6.8.13= Ariocarpus kotschoubeyanus subsp. skarupkeanus Halda & Horáček in Acta Mus. Richnov., Sect. Nat., 9: 3. 2002 syn. sec. Kew WCVP (2019)

Syn.#6.8.14− Stromatocactus kotschoubeyi Karw. ex Rümpler, Handb. Cacteenk., ed. 2: 232. 1885, nom. inval. syn. sec. Kew WCVP (2019)

Syn.#6.8.15− Stromatocarpus kotschoubeyi Karw. ex Rümpler, Handb. Cacteenk., ed. 2: 232. 1885, nom. inval. syn. sec. IPNI: 20 mar 2021

Acc.#6.9.1 Ariocarpus ×nelissae Halda & Panar. in Acta Mus. Richnov., Sect. Nat., 10: 150. 2003. Sec. WFO 2019

Acc.#6.10.1 Ariocarpus retusus Scheidw., Bull. Acad. Roy. Sci. Bruxelles 5: 492, t. 1. 1838. Sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#6.10.1≡ Anhalonium retusum (Scheidw.) Salm-Dyck, Cact. Hort. Dyck., ed. 1844: 15. 1845 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus retusus subsp. retusus

Syn.#6.10.2= Anhalonium prismaticum Lem., Cact. Gen. Sp. Nov.: 1. 1839 syn. sec. Guzmán Cruz & al. (2003) ≡ Mammillaria prismatica (Lem.) Hemsl. in Biol. Cent.-Amer., Bot. 1(6): 519. 1880 syn. sec. Tropicos ≡ Cactus prismaticus (Lem.) Kuntze, Revis. Gen. Pl. 1: 261. 1891 syn. sec. Vázquez-Sánchez & al. (2013) ≡ Ariocarpus prismaticus (Lem.) Cobbold in J. Hort. Home Farm. III. 46: 332. 1903 syn. sec. Tropicos

Syn.#6.10.3= Anhalonium elongatum Salm-Dyck, Cact. Hort. Dyck., ed. 1844: 15. 1845 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus elongatus (Salm-Dyck) Wettstein in Kakteenkunde 1933: 13. 1933 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus elongatus (Salm-Dyck) M.Lee in Cact. Succ. J. (Los Angeles) 9: 71. 1937 syn. sec. Hunt (2016) ≡ Ariocarpus trigonus var. elongatus (Salm-Dyck) Backeb., Cactaceae 5: 3087. 1961 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.10.4= Mammillaria procera Ehrenb. in Allg. Gartenzeitung 17: 241. 1849 syn. sec. Tropicos ≡ Cactus procerus (Ehrenb.) Kuntze, Revis. Gen. Pl. 1: 261. 1891 syn. sec. Kew WCVP (2019)

Syn.#6.10.5= Anhalonium areolosum Lem. in Ill. Hort. 6(Misc.): 35. 1859 syn. sec. Kew WCVP (2019) ≡ Mammillaria areolosa (Lem.) Hemsl. in Biol. Cent.-Amer., Bot. 1(6): 503. 1880 syn. sec. Tropicos ≡ Cactus areolosus (Lehm.) Kuntze, Revis. Gen. Pl. 1: 260. 1891 syn. sec. Kew WCVP (2019)

Syn.#6.10.6= Anhalonium pulvilligerum Lem. in Ill. Hort. 16(Misc.): 72. 1869 syn. sec. Vázquez-Sánchez & al. (2013) ≡ Ariocarpus pulvilligeris (Lem.) K.Schum. in Bot. Jahrb. Syst. 24(5): 550. 1898 syn. sec. Vázquez-Sánchez & al. (2013)

Syn.#6.10.7= Mammillaria pulvilligera Monv. ex Rümpler, Handb. Cacteenk., ed. 2: 231. 1885 syn. sec. Kew WCVP (2019)

Syn.#6.10.8= Mammillaria furfuracea S.Watson in Proc. Amer. Acad. Arts 25: 150. 1890 syn. sec. Guzmán Cruz & al. (2003) ≡ Anhalonium furfuraceum (S.Watson) J.M.Coult. in Contr. U.S. Natl. Herb. 3: 130. 1894 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus furfuraceus (S.Watson) H.S.Thomps. in Rep. (Annual) Missouri Bot. Gard. 9: 130. 1898 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus retusus var. furfuraceus (S.Watson) G.Frank in Krainz, Kakteen 63: CVIIIb. 1975 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.10.9= Mammillaria purpuracea S.Watson in Proc. Amer. Acad. Arts 25: 150. 1890 syn. sec. Kew WCVP (2019)

Syn.#6.10.10= Ariocarpus furfuraceus f. cristata Frič in Život v Přír. 29(4): 14. 1925 syn. sec. Kew WCVP (2019)

Syn.#6.10.11= Ariocarpus prismaticus var. maior Frič in Život v Přír. 29: 9. 1925 syn. sec. WFO 2019

Syn.#6.10.12= Ariocarpus prismaticus var. minor Frič in Život v Přír. 29: 9. 1925 syn. sec. WFO 2019

Syn.#6.10.13= Ariocarpus furfuraceus var. rostratus A.Berger, Kakteen: 334. 1929 syn. sec. Kew WCVP (2019)

Syn.#6.10.14= Ariocarpus confusus Halda & Horáček in Cactaceae etc. 7: 1. 1997 syn. sec. Guzmán Cruz & al. (2003) ≡ Ariocarpus retusus subsp. confusus (Halda & Horáček) Lüthy in Kakteen And. Sukk. 50: 278. 1999 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.10.15= Ariocarpus retusus subsp. scapharostroides Halda & Horáček in Cactaceae etc. 7: 97. 1997 syn. sec. Hunt (2016)

Syn.#6.10.16= Ariocarpus retusus subsp. horacekii Halda & Panar. in Acta Mus. Richnov., Sect. Nat., 5: 163. 1998 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.10.17= Ariocarpus retusus subsp. jarmilae Halda, Horáček & Panar. in Acta Mus. Richnov., Sect. Nat., 5: 162. 1998 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.10.18= Ariocarpus retusus subsp. panarottoi Halda & Horáček in Acta Mus. Richnov., Sect. Nat., 5: 163. 1998 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.10.19= Ariocarpus retusus subsp. sladkovskyi Halda & Kupčák in Acta Mus. Richnov., Sect. Nat., 7: 33. 2000 syn. sec. Guzmán Cruz & al. (2003)

Syn.#6.10.20− Ariocarpus retusus subsp. pectinatus Weisbarth in Kakteen And. Sukk. 54: 291. 2003, nom. inval. syn. sec. Kew WCVP (2019)

Acc.#6.11.1 Ariocarpus scaphirostris Boed. in Monatsschr. Deutsch. Kakteen-Ges. 2: 60. 1930. Sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#6.11.1− Ariocarpus scapharostris Boed. in Monatsschr. Deutsch. Kakteen-Ges. 2: 60. 1930 syn. sec. Guzmán Cruz & al. (2003) [is misspelling for Ariocarpus scaphirostris Boed.]

Syn.#6.11.2= Ariocarpus scaphirostris var. swobodae Halda, Horáček & Panar. in Acta Mus. Richnov., Sect. Nat., 5: 163. 1998 syn. sec. Guzmán Cruz & al. (2003)

Acc.#6.12.1 Ariocarpus trigonus (F.A.C.Weber) K.Schum. in Bot. Jahrb. Syst. 24(5): 550. 1898. Sec. Hernández & Gómez-Hinostrosa (2011)

Syn.#6.12.1≡ Anhalonium trigonum F.A.C.Weber in Bois, Dict. Hort.: 90. 1893 syn. sec. Hunt (2006) ≡ Ariocarpus retusus subsp. trigonus (F.A.C.Weber) E.F.Anderson & W.A.Fitz Maur. in Haseltonia 5: 18. 1998 syn. sec. Hunt (2006)

Syn.#6.12.2= Ariocarpus trigonus var. minor Voldan in Kaktusy (Brno) 12: 3. 1976 syn. sec. Tropicos

Syn.#6.12.3= Ariocarpus trigonus var. horacekii Halda in Cactaceae etc. 7: 97. 1997 syn. sec. Tropicos ≡ Ariocarpus elongatus subsp. horacekii (Halda) Halda in Acta Mus. Richnov., Sect. Nat., 5: 36. 1998 syn. sec. Tropicos

Acc.#7. Armatocereus Backeb. in Blätt. Kakteenf. 1938(6): 21. 1938. Sec. Hunt (2006) Type: Armatocereus laetus (Kunth) Backeb.

Acc.#7.1.1 Armatocereus cartwrightianus (Britton & Rose) Backeb. ex A.W.Hill, Index Kew.: 25. 1938. Sec. Hunt (2006)

Syn.#7.1.1≡ Lemaireocereus cartwrightianus Britton & Rose, Cactaceae 2: 100, f. 147–148. 1920 syn. sec. Hunt (2006) ≡ Cereus cartwrightianus (Britton & Rose) Werderm. in Backeberg, Neue Kakteen: 77. 1931 syn. sec. Hunt (2006) ≡ Armatocereus cartwrightianus Backeb., Kaktus-ABC: 176. 1936 ["1935"] syn. sec. Hunt (2006)

Syn.#7.1.2= Armatocereus cartwrightianus var. longispinus Backeb., Descr. Cact. Nov. 1: 14. 1957 ["1956"] syn. sec. Hunt (2006)

Syn.#7.1.3= Armatocereus mocupensis H.Johnson syn. sec. Tropicos

Acc.#7.2.1 Armatocereus godingianus (Britton & Rose) Backeb. ex E.Salisb., Index Kew.: 20. 1947. Sec. Hunt (2006)

Syn.#7.2.1≡ Lemaireocereus godingianus Britton & Rose, Cactaceae 2: 91–92, f. 134. 1920 syn. sec. Hunt (2006) ≡ Armatocereus godingianus (Britton & Rose) Backeb. in Blätt. Kakteenf. 1938(3): 3. 1938 syn. sec. Hunt (2006)

Acc.#7.3.1 Armatocereus godingianus subsp. brevispinus (Madsen) D.R.Hunt in Cactaceae Syst. Init. 14: 9. 2002. Sec. Hunt (2016)

Syn.#7.3.1≡ Armatocereus brevispinus Madsen, Fl. Ecuador 35: 9. 1989 syn. sec. Hunt (2016)

Acc.#7.4.1 Armatocereus godingianus subsp. godingianus. Sec. Hunt (2006)

Acc.#7.5.1 Armatocereus laetus (Kunth) Backeb., Kaktus-ABC: 176. 1936 ["1935"]. Sec. Hunt (2006)

Syn.#7.5.1≡ Cactus laetus Kunth, Nov. Gen. Sp. (quarto ed.) 6: 68. 1823 syn. sec. Hunt (2006) ≡ Cereus laetus (Kunth) DC., Prodr. 3: 466. 1828 syn. sec. Hunt (2006) ≡ Lemaireocereus laetus (Kunth) Britton & Rose in J. New York Bot. Gard. 20: 157. 1919 syn. sec. Korotkova (2021) ≡ Armatocereus laetus (Kunth) Backeb. ex A.W.Hill, Index Kew. 25. 1991 syn. sec. Tropicos: 19 aug 2020

Syn.#7.5.2= Armatocereus jungo Backeb. in Blätt. Kakteenf. 1935(1): 7. 1935 syn. sec. Kew WCVP (2019)

Syn.#7.5.3= Armatocereus oligogonus Rauh & Backeb., Descr. Cact. Nov. 1: 13. 1957 ["1956"] syn. sec. Hunt (2016) ≡ Armatocereus ghiesbreghtii var. oligogonus (Rauh & Backeb.) F.Ritter, Kakteen Südamerika 4: 1275. 1981 syn. sec. Kew WCVP (2019)

Syn.#7.5.4= Armatocereus neolaetus Y.Itô, Cactaceae: 174. 1981 syn. sec. WFO 2019

Acc.#7.6.1 Armatocereus matucanensis Backeb. ex A.W.Hill in Index Kew.: 25. 1938. Sec. Hunt (2006)

Syn.#7.6.1≡ Lemaireocereus matucanensis (Backeb.) W.T.Marshall, Cact. Ill. Keys: 82. 1941 syn. sec. Kew WCVP (2019) − Armatocereus matucanensis Backeb., Kaktus-ABC: 176. 1936 ["1935"], nom. inval. syn. sec. Hunt (2006)

Syn.#7.6.2= Armatocereus arboreus Rauh & Backeb., Descr. Cact. Nov. 1: 13. 1957 ["1956"] syn. sec. Hunt (2016)

Syn.#7.6.3= Armatocereus churinensis Rauh & Backeb., Descr. Cact. Nov. 1: 13. 1957 ["1956"] syn. sec. Hunt (2016)

Syn.#7.6.4= Armatocereus mataranus F.Ritter in Succulenta (Netherlands) 46: 23. 1967 syn. sec. Hunt (2016)

Syn.#7.6.5= Armatocereus mataranus var. ancashensis F.Ritter, Kakteen Südamerika 4: 1276. 1981 syn. sec. Hunt (2016) ≡ Armatocereus mataranus subsp. ancashensis (F.Ritter) Ostolaza in Cactaceae Consensus Init. 6: 8. 1998 syn. sec. Hunt (2016)

Syn.#7.6.6= Armatocereus rupicola F.Ritter, Kakteen Südamerika 4: 1278. 1981 syn. sec. Hunt (2016)

Acc.#7.7.1 Armatocereus procerus Rauh & Backeb. in Cactus (Paris) 51: 95. 1956. Sec. Hunt (2006)

Syn.#7.7.1≡ Armatocereus procerus Rauh & Backeb., Descr. Cact. Nov. 1: 13. 1957 ["1956"] syn. sec. Hunt (2006)

Syn.#7.7.2= Armatocereus confusus F.Ritter, Kakteen Südamerika 4: 1276. 1981 syn. sec. Tropicos

Syn.#7.7.3= Armatocereus procerus var. armatus F.Ritter, Kakteen Südamerika 4: 1277. 1981 syn. sec. Kew WCVP (2019)

Acc.#7.8.1 Armatocereus rauhii Backeb., Descr. Cact. Nov. 1: 13. 1957 ["1956"]. Sec. Hunt (2006)

Syn.#7.8.2= Armatocereus maranionensis Krainz & F.Ritter syn. sec. WFO 2019

Acc.#7.9.1 Armatocereus rauhii subsp. balsasensis (F.Ritter) Ostolaza in Cactaceae Consensus Init. 6: 8. 1998. Sec. Hunt (2006)

Syn.#7.9.1≡ Armatocereus balsasensis F.Ritter, Kakteen Südamerika 4: 1271–1272. 1981 syn. sec. Hunt (2016) ≡ Armatocereus rauhii var. balsasensis F.Ritter syn. sec. TPL (2013)

Syn.#7.9.2= Armatocereus arduus F.Ritter, Kakteen Südamerika 4: 1271. 1981 syn. sec. Hunt (2016)

Acc.#7.10.1 Armatocereus rauhii subsp. rauhii. Sec. Hunt (2006)

Acc.#7.11.1 Armatocereus riomajensis Rauh & Backeb., Descr. Cact. Nov. 1: 13. 1957 ["1956"]. Sec. Hunt (2006)

Acc.#8. Arrojadoa Britton & Rose, Cactaceae 2: 170. 1920. Sec. Hunt (2016) Type: Arrojadoa rhodantha (Gürke) Britton & Rose

Syn.#8.g1= Pierrebraunia Esteves in Cact. Succ. J. (Los Angeles) 69: 296. 1997 syn. sec. Hunt (2006). Type: Pierrebraunia bahiensis (P.J.Braun & Esteves) Esteves

Syn.#8.0.1= Arrojadoopsis Guiggi in Cactology 1: 26. 2007 syn. sec. Hunt (2006). Type: Arrojadoopsis marylaniae (Soares Filho & M.Machado) Guiggi

Acc.#8.1.1 Arrojadoa ×albiflora Buining & Brederoo in Succulenta (Netherlands) 54: 22. 1975. Sec. Hunt (2016)

Acc.#8.2.1 Arrojadoa bahiensis (P.J.Braun & Esteves) N.P.Taylor & Eggli in Kew Bull. 49(1): 98. 1994 ["1993"]. Sec. Taylor & Zappi (2004)

Syn.#8.2.1≡ Floribunda bahiensis P.J.Braun & Esteves in Pabstia 4: 13. 1993 syn. sec. Taylor & Zappi (2004) ≡ Pierrebraunia bahiensis (P.J.Braun & Esteves) Esteves in Cact. Succ. J. (Los Angeles) 69(6): 296. 1997 syn. sec. Taylor & Zappi (2004)

Acc.#8.3.1 Arrojadoa dinae Buining & Brederoo in Kakteen And. Sukk. 24: 99–101. 1973. Sec. Taylor & Zappi (2004)

Syn.#8.3.2= Arrojadoa beateae P.J.Braun & Esteves in Kakteen And. Sukk. 40: 254. 1989 syn. sec. Taylor & Zappi (2004)

Syn.#8.3.3= Arrojadoa dinae var. nana P.J.Braun & Esteves in Kakteen And. Sukk. 42: 194. 1991 syn. sec. Taylor & Zappi (2004) ≡ Arrojadoa dinae subsp. nana (P.J.Braun & Esteves) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 82. 1995 syn. sec. Taylor & Zappi (2004)

Syn.#8.3.4= Arrojadoa heimenii Van Heek & W.Strecker in Kakteen And. Sukk. 50: 137. 1999 syn. sec. Taylor & Zappi (2004)

Acc.#8.4.1 Arrojadoa dinae subsp. dinae. Sec. Taylor & Zappi (2004)

Acc.#8.5.1 Arrojadoa dinae subsp. eriocaulis (Buining & Brederoo) N.P.Taylor & Zappi in Cactaceae Consensus Init. 3: 7. 1997. Sec. Taylor & Zappi (2004)

Syn.#8.5.1≡ Arrojadoa eriocaulis Buining & Brederoo in Kakteen And. Sukk. 24(11): 241. 1973 syn. sec. Taylor & Zappi (2004)

Syn.#8.5.2= Arrojadoa eriocaulis var. albicoronata Van Heek, R.J.Paul, Heimen, Hovens & W.Strecker in Kakteen And. Sukk. 33: 227. 1982 syn. sec. Hunt (2016) ≡ Arrojadoa eriocaulis subsp. albicoronata (Van Heek, R.J.Paul, Heimen, Hovens & W.Strecker) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 82. 1995 syn. sec. Hunt (2016) ≡ Arrojadoa albicoronata (Van Heek, R.J.Paul, Heimen, Hovens & W.Strecker) P.J.Braun & Esteves in Cact. Succ. J. (Los Angeles) 79: 262. 2007 syn. sec. Taylor & Zappi (2004)

Syn.#8.5.3= Arrojadoa eriocaulis var. rosenbergeriana Van Heek & W.Strecker in Kakteen And. Sukk. 44: 262. 1993 syn. sec. Taylor & Zappi (2004) ≡ Arrojadoa rosenbergeriana (Van Heek & W.Strecker) P.J.Braun, Esteves & Van Heek in Cact. Succ. J. (Los Angeles) 79: 260. 2007 syn. sec. Taylor & Zappi (2004)

Acc.#8.6.1 Arrojadoa marylaniae Soares Filho & M.Machado in Brit. Cact. Succ. J. 21: 114. 2003. Sec. Hunt (2016)

Syn.#8.6.1≡ Arrojadoopsis marylaniae (Soares Filho & M.Machado) Guiggi in Cactology 1: 26. 2007 syn. sec. Hunt (2016)

Acc.#8.7.1 Arrojadoa multiflora F.Ritter, Kakteen Südamerika 1: 89. 1979. Sec. Hunt (2016)

Acc.#8.8.1 Arrojadoa penicillata (Gürke) Britton & Rose, Cactaceae 2: 171, f. 243. 1920. Sec. Taylor & Zappi (2004)

Syn.#8.8.1≡ Cereus penicillatus Gürke in Monatsschr. Kakteenk. 18: 70. 1908 syn. sec. Taylor & Zappi (2004) ≡ Cephalocereus penicillatus (Gürke) Werderm., Bras. Säulenkakt.: 116. 1933 syn. sec. Taylor & Zappi (2004)

Syn.#8.8.2= Arrojadoa penicillata var. decumbens Backeb. & Voll in Arch. Jard. Bot. Rio de Janeiro 9: 164. 1950 syn. sec. Taylor & Zappi (2004)

Syn.#8.8.3= Arrojadoa penicillata var. spinosior Buining & Brederoo in Succulentia 59: 20. 1980 syn. sec. Taylor & Zappi (2004)

Acc.#8.9.1 Arrojadoa rhodantha (Gürke) Britton & Rose, Cactaceae 2: 170–171. 1920. Sec. Taylor & Zappi (2004)

Syn.#8.9.1≡ Cereus rhodanthus Gürke in Monatsschr. Kakteenk. 18: 69. 1908 syn. sec. Taylor & Zappi (2004) ≡ Cephalocereus rhodanthus (Gürke) Werderm., Repert. Spec. Nov. Regni Veg. Sonderbeih. C: t. 44. 1932 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.2= Arrojadoa aureispina Buining & Brederoo in Kakteen And. Sukk. 23: 95. 1972 syn. sec. Taylor & Zappi (2004) ≡ Arrojadoa rhodantha subsp. aureispina (Buining & Brederoo) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 81. 1995 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.3= Arrojadoa canudosensis Buining & Brederoo in Cact. Succ. J. (Los Angeles) 44: 111. 1972 syn. sec. Taylor & Zappi (2004) ≡ Arrojadoa rhodantha subsp. canudosensis (Buining & Brederoo) P.J.Braun in Bradleya 6: 90. 1988 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.4= Arrojadoa theunisseniana Buining & Brederoo in Krainz, Kakteen 52: CVb. 1973 syn. sec. Taylor & Zappi (2004) ≡ Arrojadoa rhodantha var. theunisseniana (Buinting & Brederoo) P.J.Braun in Bradleya 6: 90. 1988 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.5= Arrojadoa aureispina var. guanambensis P.J.Braun & Heimen in Kakteen And. Sukk. 31: 337. 1980 syn. sec. Taylor & Zappi (2004) ≡ Arrojadoa rhodantha var. guanambensis (P.J.Braun & Heimen) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 81. 1995 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.6= Arrojadoa horstiana P.J.Braun & Heimen in Kakteen And. Sukk. 32(8): 189. 1981 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.7= Arrojadoa rhodantha subsp. reflexa P.J.Braun in Kakteen And. Sukk. 35: 38. 1983 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.8= Arrojadoa rhodantha var. occibahiensis P.J.Braun in Kakteen And. Sukk. 36: 115. 1985 syn. sec. Taylor & Zappi (2004)

Syn.#8.9.9= Arrojadoa aureispina var. anguinea P.J.Braun & Esteves in Cact. Succ. J. (Los Angeles) 60: 174. 1988 syn. sec. Taylor & Zappi (2004) ≡ Arrojadoa rhodantha var. anguinea (P.J.Braun & Esteves) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 81. 1995 syn. sec. Taylor & Zappi (2004)

Acc.#9. Arthrocereus A.Berger, Kakteen: 146, 337. 1929, nom. cons. Sec. Hunt (2016) Type: Cereus damazioi K.Schum.

Acc.#9.1.1 Arthrocereus glaziovii (K.Schum.) N.P.Taylor & Zappi in Bradleya 9: 85. 1991. Sec. Taylor & Zappi (2004)

Syn.#9.1.1≡ Cereus glaziovii K.Schum., Fl. Bras. 4(2): 200. 1890 syn. sec. Taylor & Zappi (2004) ≡ Leocereus glaziovii (K.Schum.) Britton & Rose, Cactaceae 2: 109–110. 1920 syn. sec. Taylor & Zappi (2004) ≡ Trichocereus glaziovii (K.Schum.) Werderm., Bras. Säulenkakt.: 94. 1933 syn. sec. Tropicos ≡ Echinopsis glaziovii (K.Schum.) Molinari & Mayta in Succulentopi@ 14: 11. 2015 syn. sec. Kew WCVP (2019)

Syn.#9.1.2= Trichocereus campos-portoi Werderm., Bras. Säulenkakt.: 94–95. 1933 syn. sec. Taylor & Zappi (2004) ≡ Arthrocereus campos-portoi (Werderm.) Backeb. in Blätt. Kakteenf. 1935(4): 4. 1935 syn. sec. Taylor & Zappi (2004)

Syn.#9.1.3= Trichocereus damazioi (K.Schum. ex Weing.) Werderm., Bras. Säulenkakt.: 94. 1933 syn. sec. Kew WCVP (2019) ≡ Cereus damazioi K.Schum. ex Weing. in Monatsschr. Kakteenk. 21: 91. 1911 syn. sec. Taylor & Zappi (2004) − Cereus damazioi K.Schum. in Monatsschr. Kakteenk. 13: 63. 1903, nom. nud. syn. sec. Kew WCVP (2019) − Arthrocereus damazioi (K.Schum.) P.V.Heath in Calyx 2: 65. 1992, nom. inval. syn. sec. Taylor & Zappi (2004)

Syn.#9.1.4= Arthrocereus itabiriticola P.J.Braun in Kakteen And. Sukk. 37: 237. 1986 syn. sec. Taylor & Zappi (2004)

Acc.#9.2.1 Arthrocereus melanurus (K.Schum.) Diers, P.J.Braun & Esteves in Kakteen And. Sukk. 38: 314. 1987. Sec. Taylor & Zappi (2004)

Syn.#9.2.1≡ Cereus melanurus K.Schum., Fl. Bras. 4(2): 200. 1890 syn. sec. Taylor & Zappi (2004) ≡ Leocereus melanurus (K.Schum.) Britton & Rose, Cactaceae 2: 109, f. 162. 1920 syn. sec. Taylor & Zappi (2004)

Syn.#9.2.2= Arthrocereus mello-barretoi Backeb. & Voll in Arch. Jard. Bot. Rio de Janeiro 9: 157. 1949 syn. sec. Taylor & Zappi (2004) ≡ Arthrocereus melanurus subsp. mello-barretoi (Backeb. & Voll) P.J.Braun & Esteves in Succulenta (Netherlands) 74(2): 82. 1995 syn. sec. Taylor & Zappi (2004)

Syn.#9.2.3= Arthrocereus melanurus var. estevesii Diers & P.J.Braun in Kakteen And. Sukk. 39: 105. 1988 syn. sec. Taylor & Zappi (2004)

Syn.#9.2.4≡ Arthrocereus melanurus subsp. estevesii (Diers & P.J.Braun) P.J.Braun & Esteves in Succulenta (Netherlands) 74: 82. 1995 syn. sec. Taylor & Zappi (2004)

Acc.#9.3.1 Arthrocereus melanurus subsp. magnus N.P.Taylor & Zappi in Cactaceae Consensus Init. 3: 7. 1997. Sec. Taylor & Zappi (2004)

Acc.#9.4.1 Arthrocereus melanurus subsp. melanurus. Sec. Taylor & Zappi (2004)

Acc.#9.5.1 Arthrocereus melanurus subsp. odorus (F.Ritter) N.P.Taylor & Zappi in Cactaceae Consensus Init. 3: 7. 1997. Sec. Taylor & Zappi (2004)

Syn.#9.5.1≡ Arthrocereus odorus F.Ritter, Kakteen Südamerika 1: 225. 1979 syn. sec. Taylor & Zappi (2004)

Syn.#9.5.2= Cereus parvisetus Pfeiff., Enum. Diagn. Cact.: 79. 1837 syn. sec. Taylor & Zappi (2004) ≡ Cleistocactus parvisetus (Pfeiff.) F.A.C.Weber in Roland-Gosselin, Cleistocactus: 18. 1904 syn. sec. Britton & Rose (1920)

Acc.#9.6.1 Arthrocereus rondonianus Backeb. & Voll in Kakteenkunde 1943 (Lfg. 1): 62. 1943. Sec. Taylor & Zappi (2004)

Acc.#9.7.1 Arthrocereus spinosissimus (Buining & Brederoo) F.Ritter, Kakteen Südamerika 1: 244. 1979. Sec. Hunt (2006)

Syn.#9.7.1≡ Eriocereus spinosissimus Buining & Brederoo in Kakteen And. Sukk. 28: 49. 1977 syn. sec. Hunt (2006)

Acc.#10. Astrophytum Lem., Cact. Gen. Sp. Nov.: 3-6. 1839. Sec. Vázquez-Lobo & al. (2015) Type: Astrophytum myriostigma Lem.

Syn.#10.g1= Maierocactus E.C.Rost in Z. Sukkulentenk. 2(8): 138-142. 1925 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Type: Maierocactus capricornis (A.Dietr.) E.C.Rost

Syn.#10.0.2– Digitostigma Velazco & Nevárez in Cact. Suc. Mex. 47: 79. 2002, nom. inval. syn. sec. Vázquez-Lobo & al. (2015). Type: Digitostigma caput-medusae Velazco & Nevárez

Acc.#10.1.1 Astrophytum asterias (Zucc.) Lem., Cactées: 50. 1868. Sec. Vázquez-Lobo & al. (2015)

Syn.#10.1.1≡ Echinocactus asterias Zucc. in Abh. Bayer. Akad. Wiss., Math.-Naturwiss. Abt. 42: 13. 1845 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.1.2= Astrophytum asterias var. magnipunctatum Frič in Život v Přír. 29: 15. 1925 syn. sec. Kew WCVP (2019)

Syn.#10.1.3= Astrophytum asterias var. multipunctatum Frič in Život v Přír. 29: 9. 1925 syn. sec. Kew WCVP (2019)

Syn.#10.1.4= Astrophytum asterias var. nudicarpa Frič in Život v Přír. 29: 15. 1925 syn. sec. Kew WCVP (2019)

Syn.#10.1.5= Astrophytum asterias var. roseiflorum Frič in Život v Přír. 29: 9. 1925 syn. sec. Kew WCVP (2019)

Syn.#10.1.6= Astrophytum asterias var. seminudum Frič in Život v Přír. 29: 9. 1925 syn. sec. Kew WCVP (2019)

Syn.#10.1.7= Echinocactus asterias var. nudus H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. Kew WCVP (2019)

Syn.#10.1.8= Astrophytum asterias var. nudum Y.Itô, Cactaceae: 508. 1981 syn. sec. Hunt (2016)

Syn.#10.1.9= Astrophytum asterias var. pubescente Y.Itô, Cactaceae: 508. 1981 syn. sec. Kew WCVP (2019)

Acc.#10.2.1 Astrophytum capricorne (A.Dietr.) Britton & Rose, Cactaceae 3: 184-185. 1922. Sec. Vázquez-Lobo & al. (2015)

Syn.#10.2.1≡ Echinocactus capricornis A.Dietr. in Allg. Gartenzeitung 19: 274. 1851 syn. sec. Guzmán Cruz & al. (2003) ≡ Maierocactus capricornis (A.Dietr.) E.C.Rost in Z. Sukkulentenk. 2(8): 142. 1925 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.2.2= Echinocactus capricornis var. minor Runge & Quehl in Monatsschr. Kakteenk. 2: 82. 1892 syn. sec. Kew WCVP (2019) ≡ Echinocactus capricornis f. minor (Runge & Quehl) Schelle, Handb. Kakteenkult.: 154. 1907 syn. sec. WFO 2019 ≡ Astrophytum capricorne f. minus (Runge & Quehl) A.F.Moeller in Syaboten 5: 103. 1934 syn. sec. Kew WCVP (2019)

Syn.#10.2.3= Echinocactus capricornis var. major Pichon in Monatsschr. Kakteenk. 19: 139. 1909 syn. sec. WFO 2019 ≡ Astrophytum capricorne f. majus (Pichon) A.F.Moeller in Syaboten 5: 103. 1934 syn. sec. Kew WCVP (2019)

Syn.#10.2.4= Astrophytum capricorne var. major Frič in Život v Přír. 29: 10. 1925 syn. sec. Hunt (2016)

Syn.#10.2.5= Astrophytum capricorne var. minus Frič in Život v Přír. 29: 10. 1925

Syn.#10.2.6= Astrophytum capricorne var. orientale Frič in Život v Přír. 29: 10. 1925

Syn.#10.2.7= Astrophytum senile Frič in Život v Přír. 29: 15. 1925 syn. sec. Hunt (2016) ≡ Echinocactus capricornus var. senilis Frič in Z. Sukkulentenk. 2: 128. 1925 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum capricorne subsp. senile (Frič) Doweld in Sukkulenty 3: 36. 2000 syn. sec. Guzmán Cruz & al. (2003) − Astrophytum senile Frič in Ceskoslov. Zahradn. Listy 1924: 120. 1924, nom. inval.

Syn.#10.2.8= Echinocactus capricornus var. aureus H.Moeller in Z. Sukkulentenk. 2: 128. 1925 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum senile var. aureum (H.Moeller) Backeb. in Blätt. Kakteenf. 1937(2): 2. 1937 syn. sec. WFO 2019

Syn.#10.2.9= Echinocactus capricornis var. crassispinus H.Moeller in Z. Sukkulentenk. 2: 129. 1926 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum capricorne var. crassispinum (H.Moeller) Okum. in Syaboten 4: 175. 1933 ≡ Astrophytum crassispinum (H.Moeller) W.Haage & Sadovsky in Kakteen And. Sukk. 9: 81. 1958 syn. sec. Guzmán Cruz & al. (2003) − Astrophytum crassispinum (H.Moeller) W.Haage & Sadovsky in Kakteen And. Sukk. 8: 137. 1957, comb. inval. syn. sec. TPL (2013)

Syn.#10.2.10= Echinocactus capricornis var. niveus K.Kayser in Kakteenkunde 1933: 32. 1933 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum niveum (K.Kayser) W.Haage & Sadovsky in Kakteen And. Sukk. 9: 81. 1958 syn. sec. TPL (2013) − Astrophytum niveum (K.Kayser) W.Haage & Sadovsky in Kakteen And. Sukk. 8: 137. 1957, comb. inval. syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.2.11= Astrophytum capricorne subsp. sanjuanense Pavlícek in Kaktusy (Brno) 47: 5. 2011 syn. sec. Kew WCVP (2019)

Acc.#10.3.1 Astrophytum caput-medusae D.R.Hunt in Cactaceae Syst. Init. 16: 4. 2003. Sec. Vázquez-Lobo & al. (2015)

Syn.#10.3.1− Digitostigma caput-medusae Velazco & Nevárez in Cact. Suc. Mex. 47(4): 81. 2002, nom. inval. syn. sec. Vázquez-Lobo & al. (2015)

Acc.#10.4.1 Astrophytum coahuilense (H.Moeller) K.Kayser in Kakteen-Freund 1: 59. 1932. Sec. Vázquez-Lobo & al. (2015)

Syn.#10.4.1≡ Echinocactus myriostigma subsp. coahuilensis H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. Hunt (2006) ≡ ?Astrophytum myriostigma subsp. coahuilense (H.Moeller) K.Kayser in Kakteen-Freund 1: 57. 1932 syn. sec. Arias (2021) ≡ Astrophytum myriostigma var. coahuilense (H.Moeller) K.Kayser in Borg, Cacti, ed. 1: 251. 1937 syn. sec. Arias (2021)

Acc.#10.5.1 Astrophytum myriostigma Lem., Cact. Gen. Sp. Nov.: 4. 1839. Sec. Vázquez-Lobo & al. (2015)

Syn.#10.5.1≡ Echinocactus myriostigma (Lem.) Salm-Dyck, Cact. Hort. Dyck.: 22. 1841 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.5.2= Cereus callicoche Galeotti ex Scheidw. in Bull. Acad. Roy. Sci. Bruxelles 6(1): 88. 1839 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.5.3= Cereus inermis Scheidw. in Bull. Acad. Roy. Sci. Bruxelles 6(1): 88. 1839 syn. sec. Britton & Rose (1922)

Syn.#10.5.4= Astrophytum depressum Lawr. in Gard. Mag. (London) 17: 321. 1841 syn. sec. Kew WCVP (2019)

Syn.#10.5.5= Cereus colicochus Booth ex C.F.Först., Handb. Cacteenk.: 336. 1846 syn. sec. Kew WCVP (2019)

Syn.#10.5.6= Astrophytum prismaticum Lem., Cactées: 50. 1868 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.5.7= Echinocactus myriostigma var. columnaris K.Schum., Gesamtbeschr. Kakt.: 321. 1898 syn. sec. Guzmán Cruz & al. (2003) ≡ Echinocactus myriostigma f. columnaris (K.Schum.) Schelle, Handb. Kakteenkult.: 151. 1907 syn. sec. Anderson (2005) ≡ Astrophytum myriostigma var. columnare (K.Schum.) Frič in Život v Přír. 29: 15. 1925 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum columnare (K.Schum.) Sadovsky & Schütz, Gattung Astrophytum: 159. 1979 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.5.8= Astrophytum quadratum Cobbold in Cact. J. (London) 2: 89. 1899 syn. sec. Anderson (2005)

Syn.#10.5.9= Echinocactus myriostigma var. nudus Rud.Mey. in Monatsschr. Kakteenk. 22: 136. 1912 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum myriostigma var. nudum (Rud.Mey.) Frič in Život v Přír. 29: 10. 1925 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum myriostigma subvar. nudum (Rud.Mey.) Backeb., Cactaceae 5: 2662. 1961 syn. sec. Korotkova (2021)

Syn.#10.5.10= Astrophytum myriostigma var. cereiforme Frič in Život v Přír. 29: 10. 1925 syn. sec. Anderson (2005)

Syn.#10.5.11= Astrophytum myriostigma var. grandiflorum Frič in Život v Přír. 29: 9. 1925 syn. sec. Anderson (2005)

Syn.#10.5.12= Astrophytum myriostigma var. minimiflorum Frič in Život v Přír. 29: 15. 1925 syn. sec. Anderson (2005)

Syn.#10.5.13= Astrophytum myriostigma var. nudicarpa Frič in Život v Přír. 29: 10. 1925 syn. sec. Anderson (2005)

Syn.#10.5.14= Echinocactus myriostigma subsp. potosinus H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum myriostigma subsp. potosinum (H.Moeller) K.Kayser in Kakteen-Freund 1: 57. 1932 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum myriostigma var. potosinum (H.Moeller) Kreuz., Verzeichnis Amer. Sukk. Rev. Syst. Kakteen: 20. 1935 syn. sec. Anderson (2005) ≡ Astrophytum myriostigma var. potosinum (H.Moeller) K.Kayser in Borg, Cacti, ed. 1: 251. 1937 syn. sec. Anderson (2005)

Syn.#10.5.15= Echinocactus myriostigma subsp. quadricostatus H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. Guzmán Cruz & al. (2003) ≡ Echinocactus myriostigma var. quadricostatus H.Moeller in Z. Sukkulentenk. 3: 54. 1927 syn. sec. WFO 2019 ≡ Astrophytum quadricostatum (H.Moeller) Houghton in J. Cact. Succ. Soc. Amer. 1: 157. 1930 ≡ Astrophytum myriostigma subsp. quadricostatum (H.Moeller) K.Kayser in Kakteen-Freund 1: 57. 1932 syn. sec. Anderson (2005) ≡ Astrophytum myriostigma var. quadricostatum (H.Moeller) Baum in Kakteenkunde 1933: 205. 1933 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum myriostigma var. quadricostatum (H.Moeller) Borg, Cacti, ed. 1: 251. 1937 syn. sec. Anderson (2005)

Syn.#10.5.16= Astrophytum tamaulipense Houghton in J. Cact. Succ. Soc. Amer. 1: 157. 1930 syn. sec. Korotkova (2021)

Syn.#10.5.17= Astrophytum myriostigma subsp. tamaulipense K.Kayser in Kakteen-Freund 1: 58. 1932 syn. sec. Anderson (2005) ≡ Astrophytum myriostigma var. tamaulipense (K.Kayser) W.T.Marshall & T.M.Bock, Cactaceae: 154. 1941 syn. sec. Anderson (2005)

Syn.#10.5.18= Astrophytum myriostigma subsp. tulense K.Kayser in Kakteen-Freund 1: 58. 1932 syn. sec. Guzmán Cruz & al. (2003) ≡ Astrophytum myriostigma var. tulense (K.Kayser) Borg, Cacti, ed. 1: 310. 1937 syn. sec. Anderson (2005) ≡ Astrophytum myriostigma subvar. tulense (K.Kayser) Backeb., Cactaceae 5: 2660. 1961 syn. sec. Korotkova (2021) ≡ Astrophytum tulense (K.Kayser) Sadovsky & Schütz, Gattung Astrophytum: 159. 1979 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.5.19= Astrophytum myriostigma var. verum W.T.Marshall in Marshall & Bock, Cactaceae: 154. 1941 syn. sec. Anderson (2005)

Syn.#10.5.20= Astrophytum myriostigma var. strongylogonum Backeb., Cactaceae 5: 2661. 1961 syn. sec. Anderson (2005)

Syn.#10.5.21= Astrophytum mirum Halda & Panar. in Acta Mus. Richnov., Sect. Nat., 7: 33. 2000 syn. sec. Kew WCVP (2019)

Acc.#10.6.1 Astrophytum ornatum (DC.) Britton & Rose, Cactaceae 3: 185. 1922. Sec. Vázquez-Lobo & al. (2015)

Syn.#10.6.1≡ Echinocactus ornatus DC. in Mém. Mus. Hist. Nat. 17: 114. 1828 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.6.2= Echinocactus mirbelii Lem., Cact. Aliq. Nov.: 22. 1838 syn. sec. Guzmán Cruz & al. (2003) ≡ Echinofossulocactus mirbelii (Lem.) Lawr. in Gard. Mag. (London) 17: 318. 1841 syn. sec. Tropicos ≡ Echinocactus ornatus var. mirbelii Croucher in Gard. Chron. 1873: 983. 1873 syn. sec. Kew WCVP (2019) ≡ Astrophytum ornatum var. mirbelii (Lem.) Frič in Život v Přír. 29: 10. 1925 syn. sec. Anderson (2005) ≡ Astrophytum ornatum f. mirbelii (Lem.) Krainz, Kakteen 31-32: C VIe. 1965 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.6.3= Echinocactus tortus Scheidw. in Bull. Acad. Roy. Sci. Bruxelles 5: 493. 1838 syn. sec. Britton & Rose (1922)

Syn.#10.6.4= Echinocactus ghiesbrechtii Salm-Dyck in Allg. Gartenzeitung 18: 395. 1850 syn. sec. Britton & Rose (1922)

Syn.#10.6.5= Echinocactus holopterus Miq. ex Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 27. 1850 syn. sec. Britton & Rose (1922) ≡ Echinofossulocactus holopterus (Miq. ex Salm-Dyck) Lawr. in Gard. Mag. (London) 17: 318. 1841 syn. sec. Kew WCVP (2019)

Syn.#10.6.6= Echinopsis haageana Linke in Wochenschr. Gärtnerei Pflanzenk. 1: 86. 1858 ≡ Echinopsis haageanus Linke in Wochenschr. Gärtnerei Pflanzenk. 1: 86. 1858 syn. sec. Kew WCVP (2019) ≡ Echinocactus haageanus (Linke) C.F.Först., Handb. Cacteenk., ed. 2: 469. 1885 syn. sec. Britton & Rose (1922)

Syn.#10.6.7= Astrophytum glabrescens F.A.C.Weber, Dict. Hort. 1: 467. 1896 syn. sec. Anderson (2005) ≡ Echinocactus ornatus var. glabrescens F.A.C.Weber, Dict. Hort. 1: 467. 1896 syn. sec. Tropicos ≡ Echinocactus ornatus var. glabrescens K.Schum., Gesamtbeschr. Kakt.: 324. 1898 syn. sec. Guzmán Cruz & al. (2003) ≡ Echinocactus ornatus f. glabrescens (F.A.C.Weber) Schelle, Handb. Kakteenkult.: 153. 1907 syn. sec. Britton & Rose (1922) ≡ Astrophytum ornatum var. glabrescens (F.A.C.Weber) Frič in Život v Přír. 29: 10. 1925 syn. sec. Anderson (2005) ≡ Astrophytum ornatum subvar. glabrescens (F.A.C.Weber) Backeb., Cactaceae 5: 2664. 1961 syn. sec. Korotkova (2021) ≡ Astrophytum ornatum f. glabrescens (F.A.C.Weber) Krainz, Kakteen 31-32: C VIe. 1965 syn. sec. Guzmán Cruz & al. (2003)

Syn.#10.6.8= Astrophytum ornatum var. niveum Schütz & Fleisch. in Kaktusy (Brno) 7(3): 55. 1971 syn. sec. Anderson (2005)

Syn.#10.6.9= Astrophytum ornatum var. virens Schütz & Fleisch. in Kaktusy (Brno) 7(3): 55. 1971 syn. sec. Anderson (2005)

Acc.#11. Austrocactus Britton & Rose, Cactaceae 3: 44. 1922. Sec. Hunt (2006) Type: Austrocactus bertinii (J.F.Cels) Britton & Rose

Acc.#11.1.1 Austrocactus bertinii (J.F.Cels) Britton & Rose, Cactaceae 3: 44–45, f. 56. 1922. Sec. Hunt (2006)

Syn.#11.1.1≡ Cereus bertinii J.F.Cels in Horticulteur Franç. 5: 251. 1863 syn. sec. Hunt (2006) ≡ Echinocereus bertinii (J.F.Cels) Walton in Cact. J. (London) 1: 12. 1898 syn. sec. Tropicos ≡ Echinocactus bertinii (J.F.Cels) A.Berger, Kakteen: 216. 1929 syn. sec. Kew WCVP (2019) ≡ Malacocarpus bertinii (J.F.Cels) Hosseus in Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 9: 133. 1939 syn. sec. Hunt (2006) ≡ Notocactus bertinii (J.F.Cels) W.T.Marshall, Cact. Ill. Keys: 159. 1941 syn. sec. Kew WCVP (2019)

Syn.#11.1.2= Cereus patagonicus F.A.C.Weber ex Speg. in Revista Fac. Agron. Univ. Nac. La Plata 3: 604. 1897 syn. sec. Hunt (2006) ≡ Malacocarpus patagonicus (F.A.C.Weber ex Speg.) Britton & Rose, Cactaceae 3: 197–198. 1922 syn. sec. Hunt (2006) ≡ Austrocactus patagonicus (F.A.C.Weber ex Speg.) Hosseus in Revista Centro Estud. Farm. reimpr. 2(6): 24. 1926 syn. sec. Hunt (2006) ≡ Notocactus patagonicus (F.A.C.Weber ex Speg.) W.T.Marshall, Cactaceae: 158. 1941 syn. sec. Hunt (2006)

Syn.#11.1.3= Cereus dusenii F.A.C.Weber ex Speg., Nova Add. Fl. Patag. 1: 56. 1899 syn. sec. Kew WCVP (2019) ≡ Austrocactus dusenii (F.A.C.Weber) Speg. in Anales Soc. Ci. Argent. 96: 69. 1923 syn. sec. Hunt (2016)

Syn.#11.1.4= Malacocarpus dusenii Hosseus in Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 9: 122. 1939 syn. sec. Kew WCVP (2019)

Syn.#11.1.5= Austrocactus gracilis Backeb. in Beitr. Sukkulentenk. Sukkulentenpflege 1942: 58. 1942 syn. sec. Hunt (2016)

Syn.#11.1.6= Austrocactus colloncurensis I.Schaub & Keim in Kakteen And. Sukk. 65: 212. 2014 syn. sec. Hunt (2006)

Acc.#11.2.1 Austrocactus coxii (K.Schum.) Backeb., Cactaceae 3: 1562. 1959. Sec. Hunt (2006)

Syn.#11.2.1≡ Echinocactus coxii K.Schum., Gesamtbeschr. Kakt.: 422. 1898 syn. sec. Hunt (2006) ≡ Malacocarpus coxii (K.Schum.) Hosseus in Arch. Esc. Fárm. Fac. Ci. Méd. Córdoba 9: 131. 1939 syn. sec. Hunt (2006)

Syn.#11.2.2= Austrocactus longicarpus E.Sarnes & N.Sarnes in Kakteen And. Sukk. 65: 258. 2014 syn. sec. Kew WCVP (2019) ≡ Austrocactus coxii subsp. longicarpus (E.Sarnes & N.Sarnes) Guiggi in Cactology 5 (Suppl. 8): 1. 2020 syn. sec. Hunt (2006)

Acc.#11.3.1 Austrocactus ferrarii R.Kiesling, E.Sarnes & N.Sarnes in Kakteen And. Sukk. 63(12): 330. 2012. Sec. Hunt (2006)

Acc.#11.4.1 Austrocactus hibernus F.Ritter in Sukkulentenkunde 7-8: 34. 1963. Sec. Hunt (2006)

Acc.#11.5.1 Austrocactus hibernus subsp. hibernus

Acc.#11.6.1 Austrocactus hibernus subsp. robustior E.Sarnes & N.Sarnes in Cact. Succ. J. (Los Angeles) 92(3): 226. 2020. Sec. Sarnes & Sarnes (2020)

Acc.#11.7.1 Austrocactus nobilis E.Sarnes & N.Sarnes in CactusWorld 38(3): 166. 2020. Sec. Sarnes & Sarnes (2020)

Syn.#11.7.1≡ Austrocactus bertinii subsp. nobilis (E.Sarnes & N.Sarnes) Guiggi in Cactology 5(Suppl. 10): 1. 2020

Acc.#11.8.1 Austrocactus pauxillus E.Sarnes & N.Sarnes in Kakteen And. Sukk. 67: 154. 2016. Sec. Kew WCVP (2019)

Acc.#11.9.1 Austrocactus philippii (Regel & Schmidt) Buxb. in Sukkulentenkunde 7-8: 11. 1963. Sec. Hunt (2006)

Syn.#11.9.1≡ Cereus philippii Regel & Schmidt in Gartenflora 31: 98. 1882 syn. sec. Hunt (2006) ≡ Echinocactus philippii (Regel & Schmidt) K.Schum., Gesamtbeschr. Kakt.: 427. 1898 syn. sec. Tropicos ≡ Echinopsis philippi (Regel & Schmidt) Nicolson, Ill. Dict. Gard. Suppl.: 338. 1920 syn. sec. Tropicos ≡ Erdisia philipii (Regel & Schmidt) Britton & Rose, Cactaceae 2: 105. 1920 syn. sec. Tropicos

Acc.#11.10.1 Austrocactus praecox E.Sarnes & N.Sarnes in Kakteen And. Sukk. 71(8): 228. 2020. Sec. Sarnes & Sarnes (2020)

Acc.#11.11.1 Austrocactus spiniflorus (Phil.) F.Ritter in Sukkulentenkunde 7-8: 35. 1963. Sec. Hunt (2006)

Syn.#11.11.1≡ Opuntia spiniflora Phil. in Linnaea 30: 211. 1859 syn. sec. Hunt (2006) ≡ Erdisia spiniflora (Phil.) Britton & Rose, Cactaceae 2: 106. 1920 syn. sec. Tropicos ≡ Corryocactus spiniflorus (Phil.) Hutchison in Sukkulentenkunde 7-8: 9. 1963 syn. sec. Hunt (2006)

Syn.#11.11.2= Opuntia bicolor Phil. in Linnaea 33: 83. 1864 syn. sec. Tropicos

Syn.#11.11.3= Cereus hypogaeus F.A.C.Weber ex Regel in Gartenflora 31: 165. 1882 syn. sec. Tropicos ≡ Echinocereus hypogaeus (F.A.C.Weber ex Regel) F.A.C.Weber ex Rümpler, Handb. Cacteenk., ed. 2: 784. 1885 syn. sec. Hunt (2006) − Echinocereus hypogaeus (F.A.C.Weber ex Regel) F.A.C.Weber ex K.Schum. in Engler & Prantl, Nat. Pflanzenfam. 3(6a): 185. 1894, nom. inval. syn. sec. Korotkova (2021)

Syn.#11.11.4− Eulychnia clavata Phil. ex K.Schum. in Engler & Prantl, Nat. Pflanzenfam. 3(6a): 185. 1894, nom. nud. syn. sec. Hunt (2006)

Syn.#11.11.5− Echinocereus clavatus (Phil. ex K.Schum.) K.Schum. in Monatsschr. Kakteenk. 5: 123. 1895, comb. inval. syn. sec. Kew WCVP (2019)

Acc.#11.12.1 Austrocactus subandinus E.Sarnes & N.Sarnes in Kakteen And. Sukk. 66: 174. 2015. Sec. Kew WCVP (2019)

Acc.#12. Austrocylindropuntia Backeb. in Blätt. Kakteenf. 1938(6): 21. 1938. Sec. Ritz & al. (2012), Lectotype: Austrocylindropuntia exaltata (A.Berger) Backeb.

Syn.#12.g1= Pseudotephrocactus Frič & Schelle, Akklim. Versuchs-Gart.: 1. 1933 syn. sec. Hernández-Ledesma & al. (2015)

Syn.#12.0.1= Andinopuntia Guiggi in Cactology 2 (Suppl.): 1. 2011 syn. sec. Hernández-Ledesma & al. (2015)

Syn.#12.0.2= Peruviopuntia Guiggi in Cactology 2 (Suppl.): 1. 2011 syn. sec. Hernández-Ledesma & al. (2015)

Syn.#12.0.3= Trichopuntia Guiggi in Cactology 2 (Suppl.): 2. 2011 syn. sec. Hernández-Ledesma & al. (2015)

Acc.#12.1.1 Austrocylindropuntia cylindrica (Lam.) Backeb. in Cactaceae (Berlin) 1941(2): 12. 1942. Sec. Hunt (2016)

Syn.#12.1.1≡ Cactus cylindricus Lam., Encycl. 1(2): 539. 1785 ≡ Cereus cylindricus (Lam.) Haw., Syn. Pl. Succ.: 183. 1812 syn. sec. Hernández-Ledesma & al. (2015) ≡ Opuntia cylindrica (Lam.) DC., Prodr. 3: 471. 1828 ≡ Cylindropuntia cylindrica (Lam.) F.M.Knuth, Kaktus-ABC: 120. 1936 ["1935"]

Syn.#12.1.2= Cactus coranarius Cav., Descr. Pl.: 490. 1802 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.1.3= Austrocylindropuntia intermedia Rauh & Backeb., Descr. Cact. Nov. 1: 6. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Cylindropuntia intermedia (Rauh & Backeb.) Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl. 1958(1): 194. 1958

Syn.#12.1.4= Opuntia bradleyi G.D.Rowley in Natl. Cact. Succ. J. 13: 4. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Acc.#12.2.1 Austrocylindropuntia exaltata (A.Berger) Backeb. in Cactaceae (Berlin) 1941(2): 12. 1942. Sec. Iliff (2002)

Syn.#12.2.1≡ Opuntia exaltata A.Berger, Hort. Mortol.: 232, 410. 1912 ≡ Cylindropuntia exaltata (A.Berger) Backeb., Kaktus-ABC: 120. 1936 ["1935"] ≡ Opuntia subulata var. exaltata (A.Berger) G.D.Rowley in Repert. Pl. Succ. 23: 8. 1974 ["1972"] ≡ Austrocylindropuntia subulata subsp. exaltata (A.Berger) D.R.Hunt in Cactaceae Syst. Init. 14: 11. 2002

Acc.#12.3.1 Austrocylindropuntia floccosa (Salm-Dyck) F.Ritter, Kakteen Südamerika 4: 1244. 1981. Sec. Ritz & al. (2012)

Syn.#12.3.1≡ Opuntia floccosa Salm-Dyck in Allg. Gartenzeitung 13: 388. 1845 ≡ Tephrocactus floccosus (Salm-Dyck) Backeb., KaktusABC: 105. 1936 ["1935"] ≡ Andinopuntia floccosa (Salm-Dyck) Guiggi in Cactology 2 (Suppl.): 1. 2011 ≡ Austrocylindropuntia floccosa subsp. floccosa syn. sec. Ritz & al. (2012)

Syn.#12.3.2= Opuntia senilis Roezl in Ann. Hort. Belge Étrangère 24: 39. 1874 syn. sec. Britton & Rose (1919)

Syn.#12.3.3= Opuntia floccosa var. denudata F.A.C.Weber, Dict. Hort. 2: 897. 1898 syn. sec. POWO. Plants of the World Online.

Syn.#12.3.4= Opuntia hempeliana K.Schum., Gesamtbeschr. Kakt.: 690. 1898 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.3.5= Opuntia atroviridis Werderm. & Backeb., Neue Kakteen: 63. 1931 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.3.6= Opuntia udonis Weing. in Kakteenkunde 1933: 71. 1933 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.3.7= Opuntia verticosa Weing. in Kakteenkunde 1933: 72. 1933 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.3.8= Tephrocactus atroviridis Backeb., Kaktus-ABC: 105. 1936 ["1935"] syn. sec. Brako & Zarucchi (1993)

Syn.#12.3.9= Tephrocactus udonis Backeb., Kaktus-ABC: 106. 1936 ["1935"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.3.10= Tephrocactus verticosus Backeb., Kaktus-ABC: 106. 1936 ["1935"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.3.11= Austrocylindropuntia tephrocactoides Rauh & Backeb., Descr. Cact. Nov. 1: 6. 1957 ["1956"] syn. sec. Hunt (2016) ≡ Cylindropuntia tephrocactoides (Rauh & Backeb.) Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.Naturwiss. Kl. 1958(1): 194. 1958 ≡ Opuntia tephrocactoides (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 4. 1958

Syn.#12.3.12= Tephrocactus blancii Backeb., Descr. Cact. Nov. 1: 8. 1957 ["1956"] ≡ Opuntia blancii (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958 syn. sec. Hunt (2016)

Syn.#12.3.13= Tephrocactus crispicrinitus subvar. flavicomus Rauh & Backeb., Descr. Cact. Nov. 1: 7. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia crispicrinita subvar. flavicoma (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 5. 1958

Syn.#12.3.14= Tephrocactus crispicrinitus var. tortispinus Rauh & Backeb., Descr. Cact. Nov. 1: 7. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia crispicrinita var. tortispina (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 5. 1958

Syn.#12.3.15= Tephrocactus floccosus subvar. aurescens Rauh & Backeb., Descr. Cact. Nov. 1: 7. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia floccosa subvar. aurescens (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 5. 1958

Syn.#12.3.16= Tephrocactus floccosus var. canispinus Rauh & Backeb., Descr. Cact. Nov. 1: 6. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia floccosa var. canispina (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 5. 1958

Syn.#12.3.17= Tephrocactus lagopus var. aureopenicillatus Rauh & Backeb., Descr. Cact. Nov. 1: 7. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia lagopus var. aureopenicillata (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958

Syn.#12.3.18= Tephrocactus pseudoudonis Rauh & Backeb., Descr. Cact. Nov. 1: 7. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia pseudoudonis (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 6. 1958

Syn.#12.3.19= Tephrocactus atroviridis var. longicylindricus Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl. 1958(1): 212. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia atroviridis f. longicylindrica (Rauh & Backeb.) Krainz, Kakteen 1: X B. 1970

Syn.#12.3.20= Tephrocactus atroviridis var. parviflorus Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl. 1958(1): 213. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia atroviridis f. parviflora (Rauh & Backeb.) Krainz, Kakteen: 1, X B. 1970

Syn.#12.3.21= Tephrocactus atroviridis var. paucispina Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl. 1958(1): 214. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia atroviridis f. paucispina (Rauh & Backeb.) Krainz, Kakteen 1: X B. 1970

Syn.#12.3.22= Tephrocactus crispicrinitus Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 209. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia crispicrinita (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958 ≡ Austrocylindropuntia floccosa subsp. crispicrinitus (Rauh & Backeb.) Ostolaza, Cactus Perú: 156. 2014

Syn.#12.3.23= Tephrocactus crispicrinitus var. cylindraceus Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 211. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia crispicrinita var. cylindracea (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958

Syn.#12.3.24= Tephrocactus cylindrolanatus Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 208. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia cylindrolanata (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958

Syn.#12.3.25= Tephrocactus floccosus var. crassior Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 203. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia floccosa var. crassior (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958

Syn.#12.3.26= Tephrocactus floccosus var. ovoides Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 203. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia floccosa var. ovoides (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958

Syn.#12.3.27= Tephrocactus hirschii Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 217. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia hirschii (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958 ≡ Austrocylindropuntia hirschii (Backeb.) E.F.Anderson in Cact. Succ. J. (Los Angeles) 71: 324. 1999

Syn.#12.3.28= Tephrocactus pseudo-udonis Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 208. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia pseudo-udonis (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958

Syn.#12.3.29= Tephrocactus punta-caillan Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 217. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia punta-caillan (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958 ≡ Austrocylindropuntia punta-caillan (Rauh & Backeb.) E.F.Anderson in Cact. Succ. J. (Los Angeles) 71: 324. 1999

Syn.#12.3.30= Tephrocactus rauhii Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 211. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia rauhii (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958

Syn.#12.3.31= Tephrocactus yanganucensis Rauh & Backeb. in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 217. 1958 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia yanganucensis (Rauh & Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13(1): 5. 1958 ≡ Austrocylindropuntia yanganucensis (Rauh & Backeb.) E.F.Anderson in Cact. Succ. J. (Los Angeles) 71: 324. 1999 ≡ Andinopuntia floccosa subsp. yanganucensis (Rauh & Backeb.) Guiggi in Cactology 5 (Suppl. II): 1. 2016 ≡ Austrocylindropuntia floccosa subsp. yanganucensis (Rauh & Backeb.) Ostolaza in Cactaceae Syst. Init. 24: 6. 2008 syn. sec. Hunt (2016)

Syn.#12.3.32= Austrocylindropuntia lauliacoana F.Ritter, Kakteen Südamerika 4: 1247. 1981 syn. sec. Hunt (2016)

Syn.#12.3.33= Austrocylindropuntia machacana F.Ritter, Kakteen Südamerika 4: 1246. 1981 syn. sec. Hunt (2016)

Syn.#12.3.34− Opuntia floccosa var. cardenasii (Marn.-Lap.) G.D.Rowley in Repert. Pl. Succ. 22: 11. 1973, nom. inval. syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Acc.#12.4.1 Austrocylindropuntia pachypus (K.Schum.) Backeb. in Cactaceae (Berlin) 1942(2): 13. 1942. Sec. Ritz & al. (2012)

Syn.#12.4.1≡ Opuntia pachypus K.Schum. in Monatsschr. Kakteenk. 14: 26. 1904 ≡ Cylindropuntia pachypus (K.Schum.) Backeb., KaktusABC: 120. 1936 ["1935"] ≡ Peruviopuntia pachypus (K.Schum.) Guiggi in Cactology 2 (Suppl.): 2. 2011

Acc.#12.5.1 Austrocylindropuntia shaferi (Britton & Rose) Backeb. in Cact. Succ. J. (Los Angeles) 23: 14. 1951. Sec. Ritz & al. (2012)

Syn.#12.5.1≡ Opuntia shaferi Britton & Rose, Cactaceae 1: 72. 1919 ≡ Cylindropuntia shaferi (Britton & Rose) Backeb., Kaktus-ABC: 119. 1936 ["1935"] ≡ Austrocylindropuntia vestita var. shaferi (Britton & Rose) F.Ritter, Kakteen Südamerika 2: 380. 1980 ≡ Trichopuntia shaferi (Britton & Rose) Guiggi in Cactology 2 (Suppl.): 2. 2011

Syn.#12.5.2= Opuntia weingartiana Backeb. in Blätt. Kakteenf. 1935(8): 4, gen. 10, subgen. 4–a–b, sp. 2. 1935 ≡ Cylindropuntia weingartiana (Backeb.) Backeb., Kaktus-ABC: 119. 1936 ["1935"] ≡ Austrocylindropuntia weingartiana (Backeb.) Backeb. in Cact. Succ. J. (Los Angeles) 23: 14. 1951 syn. sec. Hunt (2016)

Syn.#12.5.3= Austrocylindropuntia steiniana Backeb., Descr. Cact. Nov. 1: 6. 1957 ["1956"] syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia steiniana (Backeb.) G.D.Rowley in Nat. Cact. & Succ. Journ. 13: 4. 1958 ≡ Opuntia ignescens var. steiniana (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 5. 1958

Acc.#12.6.1 Austrocylindropuntia shaferi var. humahuacana (Backeb.) R.Kiesling in Cact. Succ. J. Gr. Brit. 42: 110. 1980. Sec. Kiesling & al. (2014)

Syn.#12.6.1≡ Cylindropuntia humahuacana Backeb., Kaktus-ABC: 119. 1936 ["1935"] ≡ Austrocylindropuntia humahuacana (Backeb.) Backeb. in Cact. Succ. J. (Los Angeles) 23: 13. 1951 ≡ Opuntia humahuacana (Backeb.) G.D.Rowley in Natl. Cact. Succ. J. 13: 4. 1958 ≡ Opuntia shaferi var. humahuacana (Backeb.) G.D.Rowley in Cact. Succ. J. Gr. Brit. 44: 2. 1982 ≡ Trichopuntia shaferi subsp. humahuacana (Backeb.) Guiggi in Cactology 2 (Suppl.): 2. 2011

Acc.#12.7.1 Austrocylindropuntia shaferi var. shaferi

Acc.#12.8.1 Austrocylindropuntia subulata (Muehlenpf.) Backeb. in Cactaceae (Berlin) 1941(2): 12. 1942. Sec. Ritz & al. (2012)

Syn.#12.8.1≡ Pereskia subulata Muehlenpf. in Allg. Gartenzeitung 13: 347. 1845 ≡ Opuntia subulata (Muehlenpf.) Engelm. in Gard. Chron. 1: 627. 1883 ≡ Pereskiopsis subulata (Muehlenpf.) Britton & Rose, Stand. Cycl. Hort. 5: 2547. 1916 ≡ Cylindropuntia subulata (Muehlenpf.) F.M.Knuth, Kaktus-ABC: 121. 1936 ["1935"] ≡ Austrocylindropuntia subulata subsp. subulata

Syn.#12.8.2= Opuntia ellemeetiana Miq. in Ned. Kruidk. Arch. 4: 337. 1858 syn. sec. Britton & Rose (1919)

Syn.#12.8.3= Opuntia ellemetiana Miq. in Ned. Kruidk. Arch. 4: 337. 1859 syn. sec. Britton & Rose (1919)

Syn.#12.8.4= Pereskia affinis Meinsh. in Wochenschr. Gärtnerei Pflanzenk. 2: 118. 1859 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew.

Syn.#12.8.5= Opuntia segethii F.Phil. in Bot. Zeitung (Berlin) 26: 861. 1868 syn. sec. Britton & Rose (1919)

Acc.#12.9.1 Austrocylindropuntia vestita (Salm-Dyck) Backeb. in Beitr. Sukkulentenk. Sukkulentenpflege 1939: 11. 1939. Sec. Ritz & al. (2012)

Syn.#12.9.1≡ Opuntia vestita Salm-Dyck in Allg. Gartenzeitung 13: 388. 1845 ≡ Pseudotephrocactus vestitus (Salm-Dyck) Frič & Schelle, Akklim. Versuchs-Gart.: 1. 1933 ≡ Cylindropuntia vestita (Salm-Dyck) Backeb., Kaktus-ABC: 119. 1936 ["1935"] ≡ Trichopuntia vestita (Salm-Dyck) Guiggi in Cactology 2 (Suppl.): 2. 2011

Syn.#12.9.2= Opuntia involuta Otto ex C.F.Först., Handb. Cacteenk.: 505. 1846 syn. sec. Britton & Rose (1919)

Syn.#12.9.3= Opuntia heteromorpha Phil. in Anales Mus. Nac., Santiago de Chile 1: 28. 1891 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Tephrocactus heteromorphus (Phil.) Backeb. in Cactus (Paris) 38: 249. 1953

Syn.#12.9.4= Opuntia teres Cels ex F.A.C.Weber, Dict. Hort.: 898. 1898 syn. sec. Britton & Rose (1919) ≡ Cylindropuntia teres (Cels ex F.A.C.Weber) Backeb., Kaktus-ABC: 119. 1936 ["1935"] ≡ Austrocylindropuntia teres (F.Cels ex F.A.C.Weber) Backeb. in Jahrb. Deutsch. Kakteen-Ges. 1944: 39. 1944

Syn.#12.9.5= Opuntia chuquisacana Cárdenas in Lilloa 23: 20, f. 2. 1950 ≡ Austrocylindropuntia chuquisacana (Cárdenas) F.Ritter, Kakteen Südamerika 2: 485. 1980 syn. sec. Hunt (2016) ≡ Austrocylindropuntia vestita var. chuquisacana (Cárdenas) Backeb., Cactaceae 1: 151. 1958 ≡ Opuntia vestita var. chuquisacana (Cárdenas) G.D.Rowley in Natl. Cact. Succ. J. 13: 25. 1958

Syn.#12.9.6= Austrocylindropuntia vestita var. maior Backeb. in Cact. Succ. J. (Los Angeles) 23: 14. 1951 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia vestita f. maior (Backeb.) Krainz, Kakteen 36: C VIII B. 1967

Syn.#12.9.7= Austrocylindropuntia vestita var. intermedia Backeb., Cactaceae 6: 3581. 1962 syn. sec. POWO. Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. ≡ Opuntia vestita f. intermedia (Backeb.) Krainz, Kakteen 36: C VIII B. 1967

Acc.#13. Aylostera Speg. in Anales Soc. Ci. Argent. 96: 75. 1923. Sec. Ritz & al. (2016) Type: Aylostera pseudominuscula (Speg.) Speg.

Syn.#13.g1= Mediolobivia Backeb. in Blätt. Kakteenf. 1934(2): 3. 1934 syn. sec. Hunt (2006). Type: Mediolobivia aureiflora (Backeb.) Backeb.

Syn.#13.0.8= Digitorebutia Frič & Kreuz. ex Buining in Succulenta (Netherlands) 22. 1940 syn. sec. Hunt (2006). Type: Digitorebutia haagei (Frič & Schelle) Frič ex Buining

Acc.#13.1.1 Aylostera albopectinata (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2769–2785. 2011. Sec. Ritz & al. (2016)

Syn.#13.1.1≡ Rebutia albopectinata Rausch in Kakteen And. Sukk. 23: 236. 1972 syn. sec. Ritz & al. (2016) ≡ Lobivia albopectinata (Rausch) Neirinck in Brugse Cactuspost 16(9): 79. 1994 [as "albipectinata"] syn. sec. Ritz & al. (2016) − Lobivia albipectinata (Rausch) Neirinck in Brugse Cactuspost 16(9): 79. 1994, nom. inval. syn. sec. TPL (2013)

Syn.#13.1.2= Rebutia schatzliana Rausch in Kakteen And. Sukk. 26(11): 244. 1975 ≡ Aylostera schatzliana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Acc.#13.2.1 Aylostera azurduyensis J.de Vries in Succulenta (Netherlands) 85: 54, 56, 59. 2006. Sec. Ritz & al. (2016)

Syn.#13.2.1≡ Aylostera fiebrigii var. azurduyensis (J.de Vries) Mieczak. in Kaktusy Inne 4: 11. 2007 syn. sec. Tropicos

Acc.#13.3.1 Aylostera deminuta (F.A.C.Weber) Backeb., Kaktus-ABC: 274. 1936 ["1935"]. Sec. Ritz & al. (2016)

Syn.#13.3.1≡ Echinopsis deminuta F.A.C.Weber in Bull. Mus. Hist. Nat. (Paris) 10: 386. 1904 syn. sec. Ritz & al. (2016) ≡ Echinocactus deminutus (F.A.C.Weber) Gürke in Monatsschr. Kakteenk. 16: 103. 1906 syn. sec. Kiesling & al. (2014) ≡ Rebutia deminuta (F.A.C.Weber) Britton & Rose, Cactaceae 4: 285. 1923 syn. sec. Ritz & al. (2016)

Syn.#13.3.2= Echinocactus fiebrigii Gürke in Notizbl. Königl. Bot. Gart. Berlin 4: 183. 1905 syn. sec. Ritz & al. (2016) ≡ Rebutia fiebrigii (Gürke) Britton & Rose in Cycl. Amer. Hort. 5: 2915. 1916 syn. sec. Ritz & al. (2016) ≡ Aylostera fiebrigii (Gürke) Backeb., Kaktus-ABC: 274. 1936 ["1935"] syn. sec. Ritz & al. (2016) − Rebutia fiebdgii Britton & Rose, Stand. Cycl. Hort. 5: 2915. 1916 syn. sec. TPL (2013) [is misspelling for Rebutia fiebrigii (Gürke) Britton & Rose]

Syn.#13.3.3= Echinopsis pseudominuscula Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 488. 1905 syn. sec. Ritz & al. (2016) ≡ Echinocactus pseudominusculus Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 488. 1905 syn. sec. Ritz & al. (2016) ≡ Echinopsis pseudominusculus Speg. in Anales Mus. Nac. Buenos Aires, ser. 3, 4: 488. 1905 syn. sec. Ritz & al. (2016) ≡ Rebutia pseudominuscula (Speg.) Britton & Rose, Cactaceae 3: 47, f. 58. 1922 syn. sec. Ritz & al. (2016) ≡ Aylostera pseudominuscula (Speg.) Speg. in Anales Soc. Ci. Argent. 96: 75. 1923 syn. sec. Ritz & al. (2016) ≡ Aylostera deminuta var. pseudominuscula (Speg.) Backeb., Kaktus-ABC: 274. 1936 ["1935"] syn. sec. Tropicos ≡ Rebutia deminuta f. pseudominuscula (Speg.) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963

Syn.#13.3.4= Rebutia kupperiana Boed. in Monatsschr. Deutsch. Kakteen-Ges. 4: 276. 1932 syn. sec. Ritz & al. (2016) ≡ Aylostera kupperiana (Boed.) Backeb., Kaktus-ABC: 275. 1936 ["1935"] syn. sec. Ritz & al. (2016) ≡ Rebutia deminuta subsp. kupperiana (Boed.) Hjertson in Cactaceae Syst. Init. 15: 9. 2003 syn. sec. Ritz & al. (2016)

Syn.#13.3.5= Rebutia pseudodeminuta Backeb. in Kakteen-Freund 2(1): 7. 1933 syn. sec. Ritz & al. (2016) ≡ Aylostera pseudodeminuta (Backeb.) Backeb., Kaktus-ABC: 275. 1936 ["1935"] syn. sec. Ritz & al. (2016)

Syn.#13.3.6= Rebutia pseudodeminuta var. schumanniana Backeb. in Kakteen-Freund 2: 7. 1933 syn. sec. Ritz & al. (2016) ≡ Aylostera pseudodeminuta var. schumanniana (Backeb.) Backeb., Kaktus-ABC: 275. 1936 ["1935"] syn. sec. Kew WCVP (2019) ≡ Rebutia pseudodeminuta f. schumanniana (Backeb.) Šída, Rod Rebutia: 20. 1997 syn. sec. Kew WCVP (2019)

Syn.#13.3.7= Rebutia spegazziniana Backeb. in Kakteen-Freund 2(1): 6. 1933 syn. sec. Ritz & al. (2016) ≡ Aylostera spegazziniana (Backeb.) Backeb., Kaktus-ABC: 276. 1936 ["1935"] syn. sec. Ritz & al. (2016) − Rebutia spegazziana Backeb. syn. sec. TPL (2013) [is misspelling for Rebutia spegazziniana Backeb.]

Syn.#13.3.8= Rebutia spinosissima Backeb. in Blätt. Kakteenf. 1935(8): 7. 1935 syn. sec. Hunt (2016) ≡ Aylostera spinosissima (Backeb.) Backeb., Kaktus-ABC: 275. 1936 ["1935"] syn. sec. Ritz & al. (2016)

Syn.#13.3.9= Aylostera spegazziniana var. atroviridis Backeb., Kaktus-ABC: 276. 1936 ["1935"] syn. sec. Tropicos ≡ Rebutia spegazziniana var. atroviridis (Backeb.) Šída, Rod Rebutia: 21. 1997

Syn.#13.3.10= Aylostera pseudodeminuta var. albiseta Backeb. in Cact. Succ. J. (Los Angeles) 23: 82. 1951 syn. sec. Tropicos ≡ Rebutia pseudodeminuta f. albiseta (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.3.11= Aylostera pseudodeminuta var. grandiflora Backeb. in Cact. Succ. J. (Los Angeles) 23: 82. 1951 syn. sec. Tropicos ≡ Rebutia pseudodeminuta f. grandiflora (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.3.12= Aylostera pseudodeminuta var. schneideriana Backeb. in Cact. Succ. J. (Los Angeles) 23: 82. 1951 syn. sec. Tropicos ≡ Rebutia pseudodeminuta f. schneideriana (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.3.13= Rebutia fiebrigii f. densiseta Cullmann in Sukkulentenkunde 6: 25. 1957 syn. sec. Kew WCVP (2019) ≡ Rebutia fiebrigii var. densiseta (Cullmann) Oeser in Kakteen And. Sukk. 27: 29. 1976 syn. sec. Ritz & al. (2016)

Syn.#13.3.14= Rebutia albiflora F.Ritter & Buining in Taxon 12: 29. 1963 syn. sec. Ritz & al. (2016) ≡ Aylostera albiflora (F.Ritter & Buining) Backeb., Descr. Cact. Nov. 3: 5. 1963 syn. sec. Ritz & al. (2016) ≡ Rebutia pulvinosa subsp. albiflora (F.Ritter & Buining) Hjertson in Cactaceae Syst. Init. 15: 9. 2003 syn. sec. Korotkova (2021)

Syn.#13.3.15= Rebutia albipilosa F.Ritter in Taxon 12: 29. 1963 syn. sec. Hunt (2016) ≡ Aylostera albipilosa (F.Ritter) Backeb., Descr. Cact. Nov. 3: 5. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.3.16= Rebutia muscula F.Ritter & Thiele in Taxon 12: 29. 1963 syn. sec. Hunt (2016) ≡ Aylostera muscula (F.Ritter & Thiele) Backeb., Descr. Cact. Nov. 3: 5. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.3.17= Rebutia pulvinosa F.Ritter & Buining in Taxon 12: 29. 1963 syn. sec. Ritz & al. (2016) ≡ Aylostera pulvinosa (F.Ritter & Buining) Backeb., Descr. Cact. Nov. 3: 5. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.3.18= Rebutia rubiginosa F.Ritter in Taxon 12: 29. 1963 syn. sec. Ritz & al. (2016) ≡ Aylostera rubiginosa (F.Ritter) Backeb., Descr. Cact. Nov. 3: 5. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.3.19= Mediolobivia ithyacantha Cárdenas in Cact. Succ. J. (Los Angeles) 42: 35. 1970 syn. sec. Kew WCVP (2019) ≡ Rebutia ithyacantha (Cárdenas) Diers in Kakteen And. Sukk. 23: 141. 1972 syn. sec. Ritz & al. (2016)

Syn.#13.3.20= Rebutia fulviseta F.Ritter in Kakteen And. Sukk. 21: 29. 1970 syn. sec. Ritz & al. (2016) ≡ Aylostera fulviseta (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.21= Rebutia heliosa Rausch in Kakteen And. Sukk. 21: 30. 1970 syn. sec. Ritz & al. (2016) ≡ Aylostera heliosa (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.22= Rebutia vallegrandensis Cárdenas in Cact. Succ. J. (Los Angeles) 42: 35. 1970 ≡ Aylostera vallegrandensis (Cárdenas) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.23= Aylostera narvaecense Cárdenas in Cact. Succ. J. (Los Angeles) 43(6): 245. 1971 syn. sec. Ritz & al. (2016) ≡ Rebutia narvaecensis (Cárdenas) Donald in Ashingtonia 1(2): 21. 1973 syn. sec. Hunt (2016) − Aylostera narvaecensis Cárdenas in Cact. Succ. J. (Los Angeles) 43: 245. 1971 syn. sec. Ritz & al. (2016) [is orthographic variant for Aylostera narvaecense Cárdenas] − Rebutia narvaecense (Cárdenas) Donald in Ashingtonia 1: 21. 1973 syn. sec. Korotkova (2021) [is orthographic variant for Rebutia narvaecensis (Cárdenas) Donald]

Syn.#13.3.24= Rebutia buiningiana Rausch in Kakteen And. Sukk. 23(4): 98. 1972 syn. sec. Ritz & al. (2016) ≡ Aylostera buiningiana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2777. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.25= Rebutia pulchella Rausch in Kakteen And. Sukk. 23(12): 340. 1972 ≡ Aylostera pulchella (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.26= Rebutia jujuyana Rausch in Kakteen And. Sukk. 24: 147. 1973 syn. sec. Ritz & al. (2016) ≡ Aylostera jujuyana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.27= Rebutia donaldiana A.B.Lau & G.D.Rowley in Ashingtonia 177: 76. 1974 syn. sec. Ritz & al. (2016) ≡ Aylostera donaldiana (A.B.Lau & G.D.Rowley) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.28= Rebutia albiareolata F.Ritter in Kakteen And. Sukk. 28(4): 78. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera albiareolata (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2777. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.29= Rebutia cajasensis F.Ritter in Succulenta (Netherlands) 56(3): 64. 1977 syn. sec. Hunt (2016) ≡ Aylostera cajasensis (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2777. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.30= Rebutia cintiensis F.Ritter in Ashingtonia 2(10): 206. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera cintiensis (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2777. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.31= Rebutia fusca F.Ritter in Kakteen And. Sukk. 28: 78. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera fusca (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.32= Rebutia hoffmannii Diers & Rausch in Kakteen And. Sukk. 28: 105. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera hoffmannii (Diers & Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.33= Rebutia kieslingii Rausch in Kakteen And. Sukk. 28: 177. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera kieslingii (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.34= Rebutia kupperiana var. spiniflora F.Ritter in Kakteen And. Sukk. 28(4): 78. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.3.35= Rebutia mamillosa var. australis F.Ritter in Kakteen And. Sukk. 28: 77. 1977 syn. sec. Kew WCVP (2019)

Syn.#13.3.36= Rebutia mamillosa var. orientalis F.Ritter in Kakteen And. Sukk. 28: 77. 1977 syn. sec. Kew WCVP (2019)

Syn.#13.3.37= Rebutia minutissima F.Ritter in Kakteen And. Sukk. 28(4): 78. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.3.38= Rebutia nogalesensis F.Ritter in Kakteen And. Sukk. 28(4): 78. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera nogalesensis (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Kew WCVP (2019)

Syn.#13.3.39= Rebutia patericalyx F.Ritter in Kakteen And. Sukk. 28: 78. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera patericalyx (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.40= Rebutia robustispina F.Ritter in Succulenta (Netherlands) 56(3): 64. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera robustispina (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.41= Rebutia robustispina var. minor F.Ritter in Succulenta (Netherlands) 56(3): 65. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.3.42= Rebutia sanguinea F.Ritter in Succulenta (Netherlands) 56(3): 65. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.3.43= Rebutia sanguinea var. minor F.Ritter in Succulenta (Netherlands) 56(3): 65. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.3.44= Rebutia tamboensis F.Ritter in Ashingtonia 2(10): 207. 1977 ≡ Aylostera tamboensis (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.45= Rebutia vulpina F.Ritter in Succulenta (Netherlands) 56: 66. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera vulpina (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.46= Rebutia archibuiningiana F.Ritter in Ashingtonia 3(1): 14. 1978 syn. sec. Ritz & al. (2016)

Syn.#13.3.47= Rebutia flavistyla F.Ritter in Ashingtonia 3(1): 12. 1978 syn. sec. Ritz & al. (2016) ≡ Aylostera flavistyla (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.48= Rebutia nitida F.Ritter in Ashingtonia 3(1): 14. 1978 syn. sec. Ritz & al. (2016) ≡ Aylostera nitida (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.49= Rebutia perplexa Donald in Ashingtonia 3(5-6): 150. 1979 syn. sec. Ritz & al. (2016) ≡ Rebutia pulvinosa subsp. perplexa (Donald) Hjertson in Cactaceae Syst. Init. 15: 9. 2003 syn. sec. Korotkova (2021) ≡ Aylostera perplexa (Donald) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.50= Rebutia fiebrigii var. vulpes F.Ritter, Kakteen Südamerika 2: 619. 1980 syn. sec. Kew WCVP (2019)

Syn.#13.3.51= Rebutia heliosa var. cajasensis Donald in Ashingtonia 3: 144. 1980 ["1979"] syn. sec. Kew WCVP (2019) ≡ Rebutia heliosa subsp. cajasensis (Donald) Říha & Šeda in Kaktusy (Brno) 42: 126. 2006 ≡ Aylostera heliosa subsp. cajasensis (Donald) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011

Syn.#13.3.52= Rebutia heliosa var. condorensis Donald in Ashingtonia 3: 143. 1980 ["1979"] syn. sec. Kew WCVP (2019) ≡ Rebutia heliosa subsp. condorensis (Donald) Říha & Šeda in Kaktusy (Brno) 42: 126. 2006 ≡ Aylostera heliosa subsp. condorensis (Donald) Mosti & Papini in Pakistan J. Bot. 43: 2778. 2011

Syn.#13.3.53= Rebutia muscula var. luteoalbida F.H.Brandt in Kakteen Orch. Rundschau 5: 62. 1980 syn. sec. Kew WCVP (2019)

Syn.#13.3.54= Rebutia simoniana Rausch in Kakteen And. Sukk. 35(9): 205. 1984 syn. sec. Ritz & al. (2016) ≡ Aylostera simoniana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.55= Rebutia wahliana Rausch in Succulenta (Netherlands) 64(12): 257. 1985 syn. sec. Ritz & al. (2016) ≡ Aylostera wahliana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.56= Rebutia walteri Diers in Kakteen And. Sukk. 40: 189. 1989 syn. sec. Ritz & al. (2016) ≡ Aylostera walteri (Diers) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.3.57= Rebutia heliosa subsp. teresae Kníže, Říha & Šeda in Kaktusy (Brno) 42: 86. 2006 syn. sec. Kew WCVP (2019)

Syn.#13.3.58= Aylostera mandingaensis R.Wahl & Jucker in Kakteen And. Sukk. 59(4): 101. 2008 syn. sec. Ritz & al. (2016)

Syn.#13.3.59= Rebutia dutineana Rausch in Kakteen And. Sukk. 59: 251. 2008 syn. sec. Kew WCVP (2019)

Syn.#13.3.60= Rebutia dutineana var. gracilior Rausch in Kakteen And. Sukk. 59: 252. 2008 syn. sec. Kew WCVP (2019)

Acc.#13.4.1 Aylostera einsteinii (Frič ex Kreuz. & Buining) Mosti & Papini in Pakistan J. Bot. 43: 2769–2785. 2011. Sec. Ritz & al. (2016)

Syn.#13.4.1≡ Rebutia einsteinii Frič ex Kreuz. & Buining, Succulenta (Netherlands): 65. 1949 syn. sec. Ritz & al. (2016) ≡ Lobivia einsteinii (Frič) Rausch, Lobivia 85: 28. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebulobivia einsteinii Frič in Gartenzeitung (Vienna) 11: 46. 1935 syn. sec. Kew WCVP (2019) ≡ Mediolobivia schmiedcheniana var. einsteinii (Frič) Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] ≡ Cylindrorebutia einsteinii (Frič ex Kreuz. & Buining) Brederoo in Succulenta (Netherlands) 1959: 123. 1959 syn. sec. Ritz & al. (2016) ≡ Aylostera einsteinii subsp. einsteinii

Syn.#13.4.2= Rebutia aureiflora Backeb. in Kakteen-Freund 1: 124. 1932 syn. sec. Ritz & al. (2016) ≡ Mediolobivia aureiflora (Backeb.) Backeb. in Blätt. Kakteenf. 1934(2): 3. 1934 syn. sec. Kew WCVP (2019) ≡ Lobivia aureiflora (Backeb.) H.P.Kelsey & Dayton, Standard. Pl. Names, ed. 2: 73. 1942 syn. sec. Kew WCVP (2019) ≡ Lobivia einsteinii var. aureiflora (Backeb.) Rausch, Lobivia 85: 33. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii subsp. aureiflora (Backeb.) Hjertson in Cactaceae Syst. Init. 15: 10. 2003 syn. sec. Ritz & al. (2016) ≡ Aylostera aureiflora (Backeb.) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.4.3= Rebutia karreri Frič in Möller's Deutsche Gärtn.-Zeitung 47: 421. 1932 syn. sec. Korotkova (2021)

Syn.#13.4.4= Rebutia steineckei Frič in Möller's Deutsche Gärtn.-Zeitung 47: 422. 1932 syn. sec. Kew WCVP (2019)

Syn.#13.4.5= Mediolobivia aureiflora var. albilongiseta Backeb. in Blätt. Kakteenf. 1934(2): 5. 1934 syn. sec. Kew WCVP (2019)

Syn.#13.4.6= Mediolobivia aureiflora var. albiseta Backeb. in Blätt. Kakteenf. 1934(2): 5. 1934 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora var. albiseta (Backeb.) Borg, Cacti, ed. 1: 187. 1937 syn. sec. Kew WCVP (2019)

Syn.#13.4.7= Mediolobivia aureiflora var. longiseta Backeb. in Blätt. Kakteenf. 1934(2): 5. 1934 syn. sec. Kew WCVP (2019) ≡ Mediolobivia longiseta (Backeb.) Backeb., Kaktus-ABC: 247. 1936 ["1935"] syn. sec. Kew WCVP (2019) ≡ Lobivia longiseta (Backeb.) H.P.Kelsey & Dayton, Standard. Pl. Names, ed. 2: 73. 1942 syn. sec. Korotkova (2021)

Syn.#13.4.8= Mediolobivia boedekeriana Backeb. in Blätt. Kakteenf. 1934(2): 6. 1934 syn. sec. Kew WCVP (2019) ≡ Mediolobivia aureiflora var. boedekeriana (Backeb.) Backeb., Cactaceae 4: 1488. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora f. boedekeriana (Backeb.) Šída, Rod Rebutia: 23. 1997 syn. sec. Kew WCVP (2019)

Syn.#13.4.9= Mediolobivia duursmaiana Backeb. in Blätt. Kakteenf. 1934(9): 6. 1934 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora f. duursmaiana (Backeb.) Šída, Rod Rebutia: 23. 1997 syn. sec. Kew WCVP (2019)

Syn.#13.4.10= Mediolobivia elegans Backeb. in Blätt. Kakteenf. 1934(9): 5. 1934 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora var. elegans (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 100. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora subsp. elegans (Backeb.) Donald in Ashingtonia 2: 90. 1976 syn. sec. Kew WCVP (2019) ≡ Lobivia einsteinii var. elegans (Backeb.) Rausch, Lobivia 85: 33. 1987 ["1985"] syn. sec. Kew WCVP (2019)

Syn.#13.4.11= Rebutia oculata Werderm., Repert. Spec. Nov. Regni Veg. Sonderbeih. C: t. 99. 1935 syn. sec. Ritz & al. (2016) ≡ Mediolobivia euanthema var. oculata (Werderm.) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Kew WCVP (2019) ≡ Rebutia euanthema f. oculata (Werderm.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Ritz & al. (2016) ≡ Aylostera oculata (Werderm.) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.4.12= Lobivia euanthema Backeb., Kaktus-ABC: 240, 414. 1936 ["1935"] syn. sec. Ritz & al. (2016) ≡ Mediolobivia euanthema (Backeb.) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Ritz & al. (2016) ≡ Acantholobivia euanthema (Backeb.) Y.Itô, Explan. Diagr. Austroechinocactinae: 131. 1957 syn. sec. Tropicos ≡ Rebutia euanthema (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii subsp. euanthema (Backeb.) Slaba in Kaktusy (Brno) 52(2): 54. 2016 syn. sec. Ritz & al. (2016)

Syn.#13.4.13= Mediolobivia longiseta var. albilongiseta Backeb., Kaktus-ABC: 247. 1936 ["1935"] syn. sec. Kew WCVP (2019)

Syn.#13.4.14= Mediolobivia rubelliflora Backeb., Kaktus-ABC: 415. 1936 ["1935"] syn. sec. Kew WCVP (2019) ≡ Mediolobivia aureiflora var. rubelliflora (Backeb.) Backeb., Cactaceae 4: 1490. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora f. rubelliflora (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 100. 1963 syn. sec. Kew WCVP (2019)

Syn.#13.4.15= Mediolobivia rubriflora Backeb., Kaktus-ABC: 415. 1936 ["1935"] syn. sec. Kew WCVP (2019) ≡ Mediolobivia aureiflora var. rubriflora (Backeb.) Backeb., Cactaceae 4: 1490. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora f. rubriflora (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 100. 1963 syn. sec. Kew WCVP (2019)

Syn.#13.4.16= Rebutia blossfeldiana Backeb. in Cact. Succ. J. (Los Angeles) 8: 75. 1936 syn. sec. Kew WCVP (2019)

Syn.#13.4.17= Rebutia blossfeldii Werderm. in Repert. Spec. Nov. Regni Veg. 39: 273. 1936 syn. sec. Kew WCVP (2019) ≡ Mediolobivia blossfeldii (Werderm.) Buining in Succulenta (Netherlands) 22: 43. 1940 syn. sec. Kew WCVP (2019) ≡ Mediolobivia rubriflora var. blossfeldii (Werderm.) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora var. blossfeldii (Werderm.) Donald in Ashingtonia 2: 88. 1976 syn. sec. Kew WCVP (2019)

Syn.#13.4.18= Rebutia sarothroides Werderm. in Repert. Spec. Nov. Regni Veg. 39: 272. 1936 syn. sec. Tropicos ≡ Mediolobivia sarothroides (Werderm.) Buining in Succulenta (Netherlands) 22: 43. 1940 syn. sec. Kew WCVP (2019) ≡ Mediolobivia aureiflora var. sarothroides (Werderm.) Backeb., Cactaceae 4: 1491. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora f. sarothroides (Werderm.) Buining & Donald in Sukkulentenkunde 7-8: 100. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia aureiflora var. sarothroides (Werderm.) Donald in Ashingtonia 2: 90. 1976 syn. sec. Kew WCVP (2019) − Mediolobivia sarothmides (Werderm.) Buining squalm. syn. sec. The Plant List v. 1.1 2013 in Succulenta (Netherlands) 22: 43. 1940 syn. sec. TPL (2013) [is misspelling for Mediolobivia sarothroides (Werderm.) Buining]

Syn.#13.4.19= Lobivia auranitida Wessner in Kakteen And. Sukk. 1937: 130, 207. 1937 syn. sec. Ritz & al. (2016) ≡ Mediolobivia auranitida (Wessner) Krainz in Sukkulentenkunde 1: 18. 1947 syn. sec. Ritz & al. (2016) ≡ Cylindrorebutia auranitida (Wessner) Brederoo in Succulenta (Netherlands) 1959: 122. 1959 syn. sec. Kew WCVP (2019) ≡ Rebutia auranitida (Wessner) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963 syn. sec. Hunt (2016)

Syn.#13.4.20= Lobivia auranitida var. gracilis Wessner in Kakteen And. Sukk. 1: 130, 207. 1937 syn. sec. Kew WCVP (2019) ≡ Mediolobivia auranitida var. gracilis (Wessner) Backeb., Cactaceae 4: 1522. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia auranitida f. gracilis (Wessner) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963 syn. sec. Kew WCVP (2019)

Syn.#13.4.21= Lobivia schmiedcheniana U.Köhler in Beitr. Sukkulentenk. Sukkulentenpflege 1939: 37. 1939 syn. sec. Kew WCVP (2019) ≡ Rebutia schmiedcheniana (U.Köhler) W.T.Marshall, Cact. Ill. Keys: 125. 1941 syn. sec. Kew WCVP (2019) ≡ Mediolobivia schmiedcheniana (U.Köhler) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Kew WCVP (2019) ≡ Cylindrorebutia schmiedcheniana (U.Köhler) Brederoo in Succulenta (Netherlands) 1959: 123. 1959 syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii f. schmiedcheniana (U.Köhler) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963

Syn.#13.4.22= Lobivia columnaris Wessner in Kakteenkunde 1940: 4. 1940 syn. sec. Kew WCVP (2019) ≡ Mediolobivia columnaris (Wessner) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Kew WCVP (2019) ≡ Cylindrorebutia columnaris (Wessner) Brederoo in Succulenta (Netherlands) 1959: 122. 1959 syn. sec. Kew WCVP (2019) ≡ Mediolobivia conoidea var. columnaris (Wessner) Backeb., Cactaceae 4: 1498. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii var. columnaris (Wessner) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963

Syn.#13.4.23= Lobivia conoidea Wessner in Kakteenkunde 1940: 3. 1940 syn. sec. Ritz & al. (2016) ≡ Mediolobivia conoidea (Wessner) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Kew WCVP (2019) ≡ Cylindrorebutia conoidea (Wessner) Brederoo in Succulenta (Netherlands) 1959: 122. 1959 syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii var. conoidea (Wessner) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963 syn. sec. Ritz & al. (2016) ≡ Rebutia einsteinii f. conoidea (Wessner) Donald in Ashingtonia 2: 112. 1976

Syn.#13.4.24= Mediolobivia blossfeldii var. compactiflora Wessner in Kakteenkunde 1940: 32. 1940 syn. sec. Kew WCVP (2019) ≡ Mediolobivia rubriflora var. compactiflora (Wessner) Krainz in Sukkulentenkunde 1: 20. 1947 syn. sec. Kew WCVP (2019)

Syn.#13.4.25= Mediolobivia blossfeldii var. nigrilongiseta Wessner in Kakteenkunde 1940: 33. 1940 syn. sec. Kew WCVP (2019) ≡ Mediolobivia rubriflora var. nigrilongiseta (Wessner) Krainz in Sukkulentenkunde 1: 20. 1947 syn. sec. Kew WCVP (2019)

Syn.#13.4.26= Mediolobivia kesselringiana Cullmann in Sukkulentenkunde 2: 26. 1948 syn. sec. Ritz & al. (2016) ≡ Mediolobivia aureiflora f. kesselringiana (Cullmann) U.Köhler in Kakteen And. Sukk. 24: 206-207. 1973 syn. sec. Eggli (2021)

Syn.#13.4.27= Mediolobivia auranitida var. flaviflora Backeb., Descr. Cact. Nov. 1: 31. 1957 ["1956"] syn. sec. Kew WCVP (2019)

Syn.#13.4.28= Mediolobivia aureiflora subvar. leucolutea Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019)

Syn.#13.4.29= Mediolobivia aureiflora subvar. lilacinostoma Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019)

Syn.#13.4.30= Mediolobivia euanthema var. fricii Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019) ≡ Rebutia euanthema f. fricii (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Kew WCVP (2019)

Syn.#13.4.31= Mediolobivia neopygmaea Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019) ≡ Rebutia euanthema f. neopygmaea (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Ritz & al. (2016)

Syn.#13.4.32= Mediolobivia schmiedcheniana var. karreri Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii f. karreri (Backeb.) Buining & Donald in Cact. Succ. J. Gr. Brit. 27: 39. 1965 ≡ Rebutia einsteinii var. karreri (Backeb.) Šída in Kaktusy (Brno) 26: 19. 1990 syn. sec. Kew WCVP (2019)

Syn.#13.4.33= Mediolobivia schmiedcheniana var. rubriviridis Frič & Kreuz. ex Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii var. rubriviridis (Frič & Kreuz. ex Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963 ≡ Rebutia einsteinii f. rubriviridis (Frič & Kreuz. ex Backeb.) Donald in Ashingtonia 2: 112. 1976

Syn.#13.4.34= Mediolobivia schmiedcheniana var. steineckei Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii var. steineckei (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 101. 1963 syn. sec. Ritz & al. (2016) ≡ Rebutia einsteinii f. steineckei (Backeb.) Donald in Ashingtonia 2: 112. 1976 syn. sec. Ritz & al. (2016)

Syn.#13.4.35= Rebutia gonjianii R.Kiesling in Bol. Soc. Argent. Bot. 15(1): 132. 1973 syn. sec. Ritz & al. (2016) ≡ Rebutia einsteinii var. gonjianii (R.Kiesling) Donald in Ashingtonia 1: 83. 1974 ≡ Lobivia einsteinii var. gonjianii (R.Kiesling) Rausch, Lobivia 85: 32. 1987 ["1985"] syn. sec. Korotkova (2021) ≡ Lobivia gonjianii (R.Kiesling) R.Kiesling in Monogr. Syst. Bot. Missouri Bot. Gard. 74: 1245. 1999 syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii subsp. gonjianii (R.Kiesling) Hjertson in Cactaceae Syst. Init. 15: 10. 2003 syn. sec. Korotkova (2021) ≡ Aylostera gonjianii (R.Kiesling) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.4.36= Mediolobivia spiralisepala Schütz in Kaktusy (Brno) 11: 51. 1975 syn. sec. Kew WCVP (2019) ≡ Rebutia spiralisepala (Schütz) Šída, Atlas Kaktusu 21: t. 29. 2006 syn. sec. Kew WCVP (2019)

Syn.#13.4.37= Lobivia einsteinii var. atrospinosa Rausch, Lobivia 85: 32. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia einsteinii var. atrospinosa (Rausch) Šída in Kaktusy (Brno) 28: 124. 1992

Syn.#13.4.38= Lobivia euanthema var. tilcarensis Rausch, Lobivia 85: 36. 1987 ["1985"] syn. sec. WFO 2019 ≡ Rebutia tilcarensis (Rausch) Šída, Rod Rebutia: 24. 1997 syn. sec. Kew WCVP (2019) ≡ Rebutia oculata subsp. tilcarensis (Rausch) Mosti in Cactus & Co. 4: 46. 2000 syn. sec. Ritz & al. (2016) − Aylostera oculata subsp. tilcarensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011, nom. inval. syn. sec. Ritz & al. (2016)

Syn.#13.4.39= Rebutia fischeriana Slaba in Kaktusy (Brno) 38: 69. 2002 syn. sec. Ritz & al. (2016) ≡ Aylostera fischeriana (Slaba) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.4.40= Rebutia brighignae Mosti & Papini, Mosti & Papini in Cactus & Co. 9. 2005: 60 syn. sec. Ritz & al. (2016) ≡ Aylostera brighignae (Mosti & Papini) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Acc.#13.5.1 Aylostera eos (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2769-2785. 2011. Sec. Ritz & al. (2016)

Syn.#13.5.1≡ Rebutia eos Rausch in Succulenta (Netherlands) 51(1): 2. 1972 syn. sec. Ritz & al. (2016) ≡ Lobivia haagei var. eos (Rausch) Rausch, Lobivia 85: 57. 1987 ["1985"] syn. sec. Ritz & al. (2016)

Syn.#13.5.2= Rebutia leucanthema Rausch in Kakteen And. Sukk. 26: 125. 1975 syn. sec. Hunt (2016) ≡ Aylostera leucanthema (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.5.3= Rebutia violascens F.Ritter in Kakteen And. Sukk. 28(4): 76. 1977 syn. sec. Kiesling & al. (2014) ≡ Lobivia haagei var. violascens (F.Ritter) Rausch, Lobivia 85: 57. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Aylostera violascens (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2784. 2011 syn. sec. Ritz & al. (2016)

Acc.#13.6.1 Aylostera malochii (Slaba & Lad.Fisch.) Ritz in Plant Syst. Evol. 302(7): 777. 2016. Sec. Ritz & al. (2016)

Syn.#13.6.1≡ Rebutia malochii Slaba & Lad.Fisch. in Kaktusy (Brno) 45: 11. 2009 syn. sec. Ritz & al. (2016)

Acc.#13.7.1 Aylostera mamillosa (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2769–2785. 2011. Sec. Ritz & al. (2016)

Syn.#13.7.1≡ Rebutia mamillosa Rausch in Succulenta (Netherlands) 51(4): 69. 1972 syn. sec. Ritz & al. (2016)

Syn.#13.7.2= Rebutia froehlichiana Rausch in Succulenta (Netherlands) 54: 226. 1975 syn. sec. Ritz & al. (2016) ≡ Aylostera froehlichiana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.7.3= Rebutia supthutiana Rausch in Kakteen And. Sukk. 27: 121. 1976 syn. sec. Hunt (2016) ≡ Aylostera supthutiana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2779. 2011 syn. sec. Ritz & al. (2016)

Acc.#13.8.1 Aylostera pygmaea (R.E.Fr.) Mosti & Papini in Pakistan J. Bot. 43: 2769–2785. 2011. Sec. Ritz & al. (2016)

Syn.#13.8.1≡ Echinopsis pygmaea R.E.Fr. in Nova Acta Regiae Soc. Sci. Upsal. ser. 4, 1(1): 120. 1905 syn. sec. Ritz & al. (2016) ≡ Rebutia pygmaea (R.E.Fr.) Britton & Rose, Cactaceae 3: 47, fig. 60. 1922 syn. sec. Ritz & al. (2016) ≡ Lobivia pygmaea (R.E.Fr.) Backeb., Kaktus-ABC: 241. 1936 ["1935"] syn. sec. Ritz & al. (2016) ≡ Mediolobivia pygmaea (R.E.Fr.) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Ritz & al. (2016)

Syn.#13.8.2= Echinocactus steinmannii Solms in Bot. Zeitung (Berlin) 2. Abt. 65(Abt. 1): 133, fig. 4, 10. 1907 syn. sec. Ritz & al. (2007) ≡ Rebutia steinmannii (Solms) Britton & Rose, Cactaceae 3: 47. 1922 syn. sec. Ritz & al. (2016) ≡ Lobivia steinmannii (Solms) Backeb., Kaktus-ABC: 243. 1936 ["1935"] syn. sec. Ritz & al. (2007) ≡ Mediolobivia steinmannii (Solms) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Kew WCVP (2019) ≡ Aylostera steinmannii (Solms) Backeb., Cactaceae 3: 1528. 1959 syn. sec. Ritz & al. (2016)

Syn.#13.8.3= Rebutia peterseimii Frič ex Kreuz. in Möller's Deutsche Gärtn.-Zeitung 44: 254. 1929 syn. sec. Kew WCVP (2019) ≡ Lobivia nigricans var. peterseimii (Frič ex Kreuz.) Rausch, Lobivia 85: 100. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia nigricans var. peterseimii (Frič ex Kreuz.) Mosti in Cactus & Co. 4: 44. 2000, nom. illeg. syn. sec. Kew WCVP (2019)

Syn.#13.8.4= Rebutia haagei Frič & Schelle in Kaktusář 1: 88. 1930 syn. sec. Ritz & al. (2016) ≡ Rebulobivia haagei Frič & Schelle ex Backeb. & F.M.Knuth, Kaktus-ABC: 243. 1936 ["1935"] syn. sec. Ritz & al. (2016) ≡ Digitorebutia haagei (Frič & Schelle) Frič ex Buining in Succulenta (Netherlands) 22: 52. 1940 syn. sec. Ritz & al. (2016) ≡ Mediolobivia haagei (Frič & Schelle) Backeb. in Cactaceae (Berlin) 1941(2): 35. 1942 syn. sec. Ritz & al. (2016) ≡ Mediolobivia haagei (Frič & Schelle) Backeb. ex Krainz in Sukkulentenkunde 1: 18. 1947 syn. sec. Ritz & al. (2016) ≡ Acantholobivia haagei (Frič & Schelle) Y.Itô, Explan. Diagr. Austroechinocactinae: 131. 1957 syn. sec. Tropicos ≡ Aylostera haagei (Frič & Schelle) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016) ≡ Lobivia haagei (Frič & Schelle) Wessner syn. sec. Ritz & al. (2016)

Syn.#13.8.5= Rebutia costata Werderm. in Notizbl. Bot. Gart. Berlin-Dahlem 12: 225. 1934 syn. sec. Kiesling & al. (2014) ≡ Digitorebutia costata (Werderm.) Buining in Succulenta (Netherlands) 22: 53. 1940 syn. sec. Kiesling & al. (2014) ≡ Lobivia costata (Werderm.) Wessner in Kakteenkunde 1940: 28. 1940 syn. sec. Ritz & al. (2016) ≡ Mediolobivia costata (Werderm.) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Ritz & al. (2016) ≡ Lobivia steinmannii var. costata (Werderm.) Rausch, Lobivia 85: 129. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia steinmannii var. costata (Werderm.) Mosti in Cactus & Co. 4: 91. 2000 syn. sec. Ritz & al. (2016)

Syn.#13.8.6= Lobivia atrovirens Backeb., Kaktus-ABC: 242, 414. 1936 ["1935"] syn. sec. Ritz & al. (2016) ≡ Digitorebutia atrovirens (Backeb.) Buining in Succulenta (Netherlands) 22: 52. 1940 syn. sec. Ritz & al. (2016) ≡ Mediolobivia atrovirens (Backeb.) Backeb. in Sukkulentenkunde 1: 18. 1947 syn. sec. Ritz & al. (2016) ≡ Mediolobivia haagei var. atrovirens (Backeb.) Donald in Cactus (Paris) 40: 39. 1954 syn. sec. Kew WCVP (2019) ≡ Digitorebutia haagei var. atrovirens (Backeb.) Donald in Natl. Cact. Succ. J. 12: 11. 1957 ≡ Mediolobivia pectinata var. atrovirens (Backeb.) Backeb., Cactaceae 4: 1506. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea f. atrovirens (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia atrovirens (Backeb.) Sida, Atlas Kakt. 10: 40. 1995 syn. sec. Ritz & al. (2016) ≡ Aylostera atrovirens (Backeb.) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.7= Lobivia digitiformis Backeb., Kaktus-ABC: 242, 414. 1936 ["1935"] syn. sec. Kiesling & al. (2014) ≡ Digitorebutia digitiformis (Backeb.) Buining in Succulenta (Netherlands) 22: 52. 1940 syn. sec. Ritz & al. (2016) ≡ Mediolobivia digitiformis (Backeb.) Backeb. in Sukkulentenkunde 1: 19. 1947 syn. sec. Ritz & al. (2016) ≡ Mediolobivia haagei var. digitiformis (Backeb.) Donald in Cactus (Paris) 40: 39. 1954 syn. sec. Kew WCVP (2019) ≡ Mediolobivia pectinata var. digitiformis (Backeb.) Backeb., Cactaceae 4: 1506. 1960 syn. sec. Kew WCVP (2019)

Syn.#13.8.8= Lobivia eucaliptana Backeb., Kaktus-ABC: 242, 414. 1936 ["1935"] syn. sec. Ritz & al. (2016) ≡ Mediolobivia eucaliptana (Backeb.) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Ritz & al. (2016) ≡ Mediolobivia costata var. eucaliptana (Backeb.) Donald in Cactus (Paris) 40: 39. 1954 syn. sec. Ritz & al. (2016) ≡ Digitorebutia eucaliptana (Backeb.) Buining in Succulenta (Netherlands) 1957: 53. 1957 syn. sec. Ritz & al. (2016) ≡ Digitorebutia costata var. eucaliptana (Backeb.) Donald in Natl. Cact. Succ. J. 12: 11. 1957 ≡ Rebutia costata f. eucaliptana (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia eucaliptana (Backeb.) F.Ritter, Kakteen Südamerika 2: 602. 1980 syn. sec. Ritz & al. (2016) ≡ Rebutia steinmannii var. eucaliptana (Backeb.) Šída, Rod Rebutia: 27. 1997 syn. sec. Kew WCVP (2019)

Syn.#13.8.9= Lobivia neohaageana Backeb., Kaktus-ABC: 243. 1936 ["1935"] syn. sec. Kiesling & al. (2014)

Syn.#13.8.10= Lobivia neohaageana var. flavovirens Backeb., Kaktus-ABC: 415. 1936 ["1935"] syn. sec. Kew WCVP (2019) ≡ Mediolobivia pygmaea var. flavovirens (Backeb.) Backeb., Cactaceae 3: 1503. 1960 syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea f. flavovirens (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia haagei f. flavovirens (Backeb.) Šída, Rod Rebutia: 25. 1997 syn. sec. Kew WCVP (2019)

Syn.#13.8.11= Lobivia nigrispina Backeb., Kaktus-ABC: 414. 1936 ["1935"] syn. sec. Kew WCVP (2019)

Syn.#13.8.12= Lobivia orurensis Backeb., Kaktus-ABC: 243, 415. 1936 ["1935"] syn. sec. Ritz & al. (2016) ≡ Digitorebutia orurensis (Backeb.) Buining in Succulenta (Netherlands) 22: 52. 1940 ≡ Mediolobivia orurensis (Backeb.) Backeb. in Repert. Spec. Nov. Regni Veg. 51: 65. 1942 ≡ Mediolobivia haagei var. orurensis (Backeb.) Donald in Cactus (Paris) 40: 39. 1954 syn. sec. Ritz & al. (2016) ≡ Digitorebutia haagei var. orurensis (Backeb.) Donald in Natl. Cact. Succ. J. 12: 11. 1957 syn. sec. Kew WCVP (2019) ≡ Mediolobivia pectinata var. orurensis (Backeb.) Backeb., Cactaceae 3: 1505. 1959 syn. sec. Ritz & al. (2016) ≡ Rebutia orurensis (Backeb.) F.Ritter, Kakteen Südamerika 2: 594. 1980 ≡ Rebutia haagei var. orurensis (Backeb.) Šída in Kaktusy (Brno) 26: 19. 1990 syn. sec. Kew WCVP (2019) ≡ Aylostera orurensis (Backeb.) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.13= Lobivia pectinata Backeb., Kaktus-ABC: 243, 415. 1936 ["1935"] syn. sec. Schlumpberger (2021) ≡ Digitorebutia pectinata (Backeb.) Buining in Succulenta (Netherlands) 22: 52. 1940 syn. sec. Schlumpberger (2021) ≡ Mediolobivia pectinata Backeb. ex Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Schlumpberger (2021) ≡ Mediolobivia haagei var. pectinata (Backeb.) Donald in Cactus (Paris) 40: 39. 1954 syn. sec. Schlumpberger (2021) ≡ Digitorebutia haagei var. pectinata (Backeb.) Donald in Natl. Cact. Succ. J. 12: 11. 1957 syn. sec. Schlumpberger (2021) ≡ Rebutia pygmaea var. pectinata (Backeb.) Šída, Rod Rebutia: 26. 1997 syn. sec. Schlumpberger (2021)

Syn.#13.8.14= Lobivia brachyantha Wessner in Kakteen And. Sukk. 1937: 129, 207. 1937 syn. sec. Ritz & al. (2016) ≡ Digitorebutia brachyantha (Wessner) Buining in Succulenta (Netherlands) 22: 53. 1940 ≡ Mediolobivia brachyantha (Wessner) Krainz in Sukkulentenkunde 1: 19. 1947 syn. sec. Kew WCVP (2019) ≡ Rebutia brachyantha (Wessner) Buining & Donald in Sukkulentenkunde 7-8: 102. 1963 syn. sec. Hunt (2016) ≡ Lobivia steinmannii var. brachyantha (Wessner) Rausch, Lobivia 85: 129. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia steinmannii subsp. brachyantha (Wessner) Mosti in Cactus & Co. 4: 93. 2000 syn. sec. Kew WCVP (2019) ≡ Aylostera brachyantha (Wessner) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.15= Lobivia nigricans Wessner in Kakteenkunde 1940: 51. 1940 ≡ Mediolobivia nigricans (Wessner) Krainz in Sukkulentenkunde 1: 19. 1947 ≡ Rebutia ritteri var. nigricans (Wessner) Buining & Donald in Sukkulentenkunde 7-8: 103. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia nigricans (Wessner) D.R.Hunt in Cactaceae Consensus Init. 4: 6. 1997 ≡ Aylostera nigricans (Wessner) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.16= Mediolobivia haagei var. flavovirens Backeb. in Cact. Succ. J. (Los Angeles) 23: 81. 1951 syn. sec. Kew WCVP (2019)

Syn.#13.8.17= Mediolobivia haefneriana Cullmann in Kakteen And. Sukk. 6(2): 119. 1955 syn. sec. Kiesling & al. (2014) ≡ Digitorebutia haefneriana (Cullmann) Donald in Natl. Cact. Succ. J. 12: 10. 1957 syn. sec. Ritz & al. (2016) ≡ Rebutia pygmaea f. haefneriana (Cullmann) Buining & Donald in Sukkulentenkunde 7-8: 103. 1963 syn. sec. Kew WCVP (2019) ≡ Lobivia atrovirens var. haefneriana (Cullmann) Rausch, Lobivia 85: 12. 1987 ["1985"] ≡ Rebutia haefneriana (Cullmann) Šída, Rod Rebutia: 28. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera haefneriana (Cullmann) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.18= Mediolobivia fuauxiana Backeb., Descr. Cact. Nov. 1: 31. 1957 ["1956"] syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea f. fuauxiana (Backeb.) Buining & Donald in Sukkulentenkunde 7-8: 103. 1963 syn. sec. Kew WCVP (2019) ≡ Rebutia fuauxiana (Backeb.) Šída, Rod Rebutia: 28. 1997 syn. sec. Kew WCVP (2019)

Syn.#13.8.19= Mediolobivia pectinata var. neosteinmannii Backeb., Descr. Cact. Nov. 1: 30. 1957 ["1956"] syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea f. neosteinmannii (Backeb.) Buining & Donald in Cact. Succ. J. Gr. Brit. 27: 40. 1965 syn. sec. Kew WCVP (2019)

Syn.#13.8.20= Rebutia brunescens Rausch in Kakteen And. Sukk. 23(9): 235. 1972 syn. sec. Ritz & al. (2016) ≡ Aylostera brunescens (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2777. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.21= Rebutia christinae Rausch in Kakteen And. Sukk. 26(7): 145. 1975 syn. sec. Hunt (2016) ≡ Lobivia steinmannii var. christinae (Rausch) Rausch, Lobivia 85: 129. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Aylostera christinae (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.22= Rebutia diersiana Rausch in Kakteen And. Sukk. 26(2): 25. 1975 syn. sec. Ritz & al. (2016) ≡ Lobivia pygmaea var. diersiana (Rausch) Rausch, Lobivia 85: 116. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea var. diersiana (Rausch) Lodé in Cact. Avent. 16: 17. 1992 syn. sec. Kew WCVP (2019) ≡ Aylostera diersiana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.23= Rebutia diersiana var. atrovirens Rausch in Kakteen And. Sukk. 26(2): 26. 1975 syn. sec. Kiesling & al. (2014) ≡ Rebutia diersiana subsp. atrovirens (Rausch) Mosti in Cactus & Co. 3: 205. 1999 syn. sec. Kew WCVP (2019) ≡ Aylostera diersiana subsp. atrovirens (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Kew WCVP (2019)

Syn.#13.8.24= Rebutia camargoensis Rausch in Succulenta (Netherlands) 55: 42. 1976 syn. sec. Ritz & al. (2016) ≡ Lobivia steinmannii var. camargoensis (Rausch) Rausch, Lobivia 85: 129. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Aylostera camargoensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.25= Rebutia canacruzensis Rausch in Kakteen And. Sukk. 27(3): 49. 1976 syn. sec. Ritz & al. (2016) ≡ Lobivia haagei var. canacruzensis (Rausch) Rausch, Lobivia 85: 56. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Aylostera canacruzensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.26= Rebutia cincinnata Rausch in Kakteen And. Sukk. 27(1): 4. 1976 syn. sec. Hunt (2016) ≡ Rebutia steinmannii var. cincinnata (Rausch) F.Ritter, Kakteen Südamerika 2: 602. 1980 syn. sec. Kew WCVP (2019) ≡ Lobivia steinmannii var. cincinnata (Rausch) Rausch, Lobivia 85: 129. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Aylostera cincinnata (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.27= Rebutia friedrichiana Rausch in Succulenta (Netherlands) 55(6): 103. 1976 syn. sec. Ritz & al. (2016) ≡ Lobivia pygmaea var. friedrichiana (Rausch) Rausch, Lobivia 85: 116. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea var. friedrichiana (Rausch) M.Erikss. in Kaktus (Odense) 23(4): 81. 1988 syn. sec. Tropicos ≡ Aylostera friedrichiana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016) − Lobivia pygymaea var. friedrichiana (Rausch) Rausch, Lobivia 85: 116. 1987 ["1985"] syn. sec. TPL (2013) [is misspelling for Lobivia pygmaea var. friedrichiana (Rausch) Rausch]

Syn.#13.8.28= Rebutia mudanensis Rausch in Kakteen And. Sukk. 27(8): 169. 1976 syn. sec. Hunt (2016) ≡ Lobivia haagei var. mudanensis (Rausch) Rausch, Lobivia 85: 57. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea var. mudanensis (Rausch) Lodé in Cact. Avent. 16: 17. 1992 syn. sec. Kew WCVP (2019) ≡ Rebutia haagei subsp. mudanensis (Rausch) Mosti in Cactus & Co. 4: 37. 2000 syn. sec. Kew WCVP (2019) ≡ Aylostera haagei subsp. mudanensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Kew WCVP (2019)

Syn.#13.8.29= Rebutia brunneoradicata F.Ritter in Kakteen And. Sukk. 28(4): 77. 1977 syn. sec. Kiesling & al. (2014) ≡ Aylostera brunneoradicata (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.30= Rebutia colorea F.Ritter in Kakteen And. Sukk. 28(4): 78. 1977 syn. sec. Ritz & al. (2016) ≡ Lobivia pygmaea var. colorea (F.Ritter) Rausch, Lobivia 85: 116. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia pygmaea var. colorea (F.Ritter) Lodé in Cact. Avent. 16: 17. 1992 syn. sec. Kew WCVP (2019) ≡ Aylostera colorea (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.31= Rebutia gracilispina F.Ritter in Kakteen And. Sukk. 28(4): 76. 1977 syn. sec. Hunt (2016)

Syn.#13.8.32= Rebutia huasiensis Rausch in Kakteen And. Sukk. 28(2): 25. 1977 syn. sec. Kiesling & al. (2014) ≡ Lobivia atrovirens var. huasiensis (Rausch) Rausch, Lobivia 85: 13. 1987 ["1985"] syn. sec. Kiesling & al. (2014) ≡ Aylostera huasiensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.33= Rebutia iridescens F.Ritter in Kakteen And. Sukk. 28(4): 76. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera iridescens (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.34= Rebutia iscayachensis Rausch in Succulenta (Netherlands) 56(12): 3. 1977 syn. sec. Ritz & al. (2016) ≡ Lobivia pygmaea var. iscayachensis (Rausch) Rausch, Lobivia 85: 116. 1987 ["1985"] ≡ Rebutia pygmaea var. iscayachensis (Rausch) Lodé in Cact. Avent. 16: 17. 1992 ≡ Aylostera iscayachensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.35= Rebutia lanosiflora F.Ritter in Kakteen And. Sukk. 28(4): 77. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.8.36= Rebutia leucanthema var. cocciniflora F.Ritter in Succulenta (Netherlands) 56: 63. 1977 syn. sec. Kew WCVP (2019)

Syn.#13.8.37= Rebutia mixta F.Ritter in Kakteen And. Sukk. 28(4): 76. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.8.38= Rebutia mixticolor F.Ritter in Kakteen And. Sukk. 28(4): 77. 1977 syn. sec. Ritz & al. (2016) ≡ Aylostera mixticolor (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.39= Rebutia odontopetala F.Ritter in Kakteen And. Sukk. 28: 76. 1977 syn. sec. Hunt (2016)

Syn.#13.8.40= Rebutia pallida Rausch in Succulenta (Netherlands) 56(10): 34. 1977 syn. sec. Kiesling & al. (2014) ≡ Lobivia haagei var. pallida (Rausch) Rausch, Lobivia 85: 57. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Aylostera pallida (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.41= Rebutia pauciareolata F.Ritter in Kakteen And. Sukk. 28(4): 77. 1977 syn. sec. Kiesling & al. (2014) ≡ Aylostera pauciareolata (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.42= Rebutia paucicostata F.Ritter in Kakteen And. Sukk. 28(4): 77. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.8.43= Rebutia poecilantha F.Ritter in Kakteen And. Sukk. 28: 77. 1977 syn. sec. Hunt (2016)

Syn.#13.8.44= Rebutia potosina F.Ritter in Kakteen And. Sukk. 28: 77. 1977 syn. sec. Hunt (2016)

Syn.#13.8.45= Rebutia rauschii Zecher in Kakteen And. Sukk. 28(4): 73. 1977 syn. sec. Ritz & al. (2016) ≡ Lobivia steinmannii var. rauschii (Zecher) Rausch, Lobivia 85: 129. 1987 ["1985"] syn. sec. Ritz & al. (2016)

Syn.#13.8.46= Rebutia rosalbiflora F.Ritter in Kakteen And. Sukk. 28(4): 76. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.8.47= Rebutia rosalbiflora var. amblypetala F.Ritter in Kakteen And. Sukk. 28: 76. 1977 syn. sec. Kiesling & al. (2014) ≡ Rebutia amblypetala (F.Ritter) Mosti in Cactus & Co. 3: 196. 1999 syn. sec. Ritz & al. (2016) ≡ Aylostera amblypetala (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.48= Rebutia rutiliflora F.Ritter in Kakteen And. Sukk. 28(4): 76. 1977 syn. sec. Ritz & al. (2016)

Syn.#13.8.49= Rebutia salpingantha F.Ritter in Kakteen And. Sukk. 28(4): 77. 1977 syn. sec. Kiesling & al. (2014)

Syn.#13.8.50= Rebutia torquata F.Ritter & Buining in Succulenta (Netherlands) 56(3): 63. 1977 syn. sec. Kiesling & al. (2014) ≡ Aylostera torquata (F.Ritter & Buining) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.51= Rebutia tropaeolipicta F.Ritter in Kakteen And. Sukk. 28(4): 78. 1977 ≡ Aylostera tropaeolipicta (F.Ritter) Mosti & Papini in Pakistan J. Bot. 43: 2784. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.52= Rebutia zecheri Rausch in Succulenta (Netherlands) 56(2): 30. 1977 syn. sec. Kiesling & al. (2014) ≡ Lobivia atrovirens var. zecheri (Rausch) Rausch, Lobivia 85: 13. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Aylostera zecheri (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2784. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.53= Rebutia carmeniana Rausch in Kakteen And. Sukk. 29(5): 105. 1978 syn. sec. Ritz & al. (2016) ≡ Lobivia nigricans var. carmeniana (Rausch) Rausch, Lobivia 85: 100. 1987 ["1985"] syn. sec. Kew WCVP (2019) ≡ Rebutia nigricans subsp. carmeniana (Rausch) Mosti in Cactus & Co. 4: 44. 2000 syn. sec. Kew WCVP (2019) ≡ Aylostera carmeniana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.54= Digitorebutia nazarenoensis Rausch in Succulenta (Netherlands) 58: 186. 1979 ≡ Rebutia nazarenoensis (Rausch) B.Fearn & Pearcy, Gen. Rebutia: 71. 1981 syn. sec. Kew WCVP (2019) ≡ Lobivia haagei var. nazarenoensis (Rausch) Rausch, Lobivia 85: 57. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia pygmaea var. nazarenoensis (Rausch) Lodé in Cact. Avent. 16: 17. 1992 syn. sec. Ritz & al. (2016) ≡ Aylostera nazarenoensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.55= Rebutia diersiana var. minor Rausch in Succulenta (Netherlands) 58(11): 258. 1979 syn. sec. Kiesling & al. (2014) ≡ Rebutia minor (Rausch) Mosti in Cactus & Co. 4: 42. 2000 syn. sec. Ritz & al. (2016) ≡ Aylostera minor (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.56= Rebutia yuquinensis Rausch in Kakteen And. Sukk. 31(10): 307. 1980 syn. sec. Kiesling & al. (2014) ≡ Lobivia atrovirens var. yuquinensis (Rausch) Rausch, Lobivia 85: 13. 1987 ["1985"] syn. sec. Kiesling & al. (2014) ≡ Aylostera yuquinensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2784. 2011 syn. sec. Ritz & al. (2016) − Digitorebutia yuquinensis (Rausch) Rausch, Lobivia 85: 13. 1987 ["1985"], nom. inval. syn. sec. Kiesling & al. (2014)

Syn.#13.8.57= Rebutia villazonensis F.H.Brandt in Kakteen Orch. Rundschau 1983(2): 16. 1983 syn. sec. Hunt (2016)

Syn.#13.8.58= Lobivia atrovirens var. pseudoritteri Rausch, Lobivia 85: 13. 1987 ["1985"] syn. sec. Kiesling & al. (2014) ≡ Rebutia pseudoritteri (Rausch) Šída, Rod Rebutia: 28. 1997 syn. sec. Ritz & al. (2016) ≡ Rebutia atrovirens var. pseudoritteri (Rausch) Mosti in Cactus & Co. 3: 198. 1999 ≡ Aylostera pseudoritteri (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.59= Lobivia atrovirens var. yuncharasensis Rausch, Lobivia 85: 137. 1987 ["1985"] syn. sec. Kiesling & al. (2014) ≡ Rebutia yuncharasensis (Rausch) Šída, Rod Rebutia: 29. 1997 ≡ Aylostera yuncharasensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2784. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.60= Lobivia haagei var. crassa Rausch, Lobivia 85: 140. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia crassa (Rausch) Šída, Rod Rebutia: 26. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera crassa (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.61= Lobivia haagei var. elegantula Rausch, Lobivia 85: 57. 1987 ["1985"] syn. sec. Korotkova (2021) ≡ Rebutia elegantula (Rausch) Šída, Rod Rebutia: 25. 1997 syn. sec. Ritz & al. (2016) ≡ Rebutia haagei var. elegantula (Rausch) Mosti in Cactus & Co. 4: 37. 2000 syn. sec. Kew WCVP (2019) ≡ Aylostera haagei subsp. elegantula (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2781. 2011 syn. sec. Kew WCVP (2019)

Syn.#13.8.62= Lobivia haagei var. pelzliana Rausch, Lobivia 85: 57, 140. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia pelzliana (Rausch) Šída, Rod Rebutia: 26. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera pelzliana (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.63= Lobivia nigricans var. albispina Rausch, Lobivia 85: 100. 1987 ["1985"] syn. sec. Tropicos ≡ Rebutia albispina (Rausch) Šída, Rod Rebutia: 29. 1997 syn. sec. Tropicos ≡ Rebutia nigricans var. albispina (Rausch) Mosti in Cactus & Co. 4: 44. 2000 syn. sec. Kew WCVP (2019) ≡ Aylostera nigricans subsp. albispina (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Kew WCVP (2019)

Syn.#13.8.64= Lobivia pygmaea var. knizei Rausch, Lobivia 85: 144, 116. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia knizei (Rausch) Šída, Rod Rebutia: 26. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera knizei (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.65= Lobivia pygmaea var. minor Rausch, Lobivia 85: 116. 1987 ["1985"] syn. sec. Ritz & al. (2016)

Syn.#13.8.66= Lobivia pygmaea var. nigrescens Rausch, Lobivia 85: 116. 1987 ["1985"] syn. sec. Ritz & al. (2016)

Syn.#13.8.67= Lobivia pygmaea var. polypetala Rausch, Lobivia 85: 144. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia polypetala (Rausch) Šída, Rod Rebutia: 27. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera polypetala (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.68= Lobivia pygmaea var. tafnaensis Rausch, Lobivia 85: 144. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia tafnaensis (Rausch) Šída, Rod Rebutia: 27. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera tafnaensis (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2783. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.69= Lobivia pygmaea var. violaceostaminata Rausch, Lobivia 85: 144. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia violaceostaminata (Rausch) Šída, Rod Rebutia: 27. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera violaceostaminata (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2784. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.70= Lobivia steinmannii var. applanata Rausch, Lobivia 85: 145. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia applanata (Rausch) Šída, Rod Rebutia: 27. 1997 syn. sec. Ritz & al. (2016) ≡ Aylostera applanata (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2780. 2011 syn. sec. Ritz & al. (2016)

Syn.#13.8.71= Lobivia steinmannii var. leucacantha Rausch, Lobivia 85: 145. 1987 ["1985"] syn. sec. Ritz & al. (2016) ≡ Rebutia leucacantha (Rausch) Šída, Rod Rebutia: 27. 1997 syn. sec. Ritz & al. (2016) ≡ Rebutia steinmannii var. leucacantha (Rausch) Mosti in Cactus & Co. 4: 91. 2000 ≡ Aylostera leucacantha (Rausch) Mosti & Papini in Pakistan J. Bot. 43: 2782. 2011 syn. sec. Ritz & al. (2016)