Discocactus Pfeiff. in Allg. Gartenzeitung 5: 241. 1837. [wfo-4000012130] D. bahiensis Britton & Rose Cactaceae 3: 220, pl. 24, f. 4. 1922. [wfo-0000651930]homotypic Echinocactus bahiensis (Britton & Rose) Luetzelb. in Estud. Bot. Nordéste 3: 111. 1926. [wfo-0000660211] synonym Discocactus bahiensis subsp. subviridigriseus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 63. 1993. [wfo-0000651932]basionym Discocactus subviridigriseus Buining & Brederoo Discocactus: 115. 1976. [wfo-0000652016] synonym Discocactus subviridigriseus Buining & Brederoo Discocactus: 115. 1976. [wfo-0000652016]homotypic Discocactus bahiensis subsp. subviridigriseus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 63. 1993. [wfo-0000651932] synonym Echinocactus bahiensis (Britton & Rose) Luetzelb. in Estud. Bot. Nordéste 3: 111. 1926. [wfo-0000660211]basionym Discocactus bahiensis Britton & Rose Cactaceae 3: 220, pl. 24, f. 4. 1922. [wfo-0000651930] D. bahiensis subsp. gracilis P.J.Braun & Esteves in Kakteen And. Sukk. 52: 290. 2001. [wfo-0000651931] D. boliviensis Buining & Brederoo Discocactus: 90. 1980. [wfo-0001430580]synonym Discocactus boliviensis Backeb. Descr. Cact. Nov. 3: 5. 1963. [wfo-0000651936] synonym Neodiscocactus boliviensis (Backeb.) Y.Itô Cactaceae: 531. 1981. [wfo-0000380066] D. buenekeri W.R.Abraham in Kakteen And. Sukk. 38: 284. 1987. [wfo-0000651938]homotypic Discocactus zehntneri subsp. buenekeri (W.R.Abraham) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 64. 1993. [wfo-0000652028] synonym Discocactus zehntneri subsp. buenekeri (W.R.Abraham) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 64. 1993. [wfo-0000652028]basionym Discocactus buenekeri W.R.Abraham in Kakteen And. Sukk. 38: 284. 1987. [wfo-0000651938] D. catingicola Buining & Brederoo in Kakteen And. Sukk. 25: 265–267. 1974. [wfo-0000651940]homotypic Discocactus heptacanthus subsp. catingicola (Buining & Brederoo) N.P.Taylor & Zappi in Cactaceae Consensus Init. 3: 7. 1997. [wfo-0000651973] synonym Discocactus cangaensis Diers & Esteves in Cact. Succ. J. (Los Angeles) 52: 107. 1980. [wfo-0000651939] synonym Discocactus catingicola var. griseus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993. [wfo-0000651941]basionym Discocactus griseus Buining & Brederoo in Succulenta (Netherlands) 54: 186. 1975. [wfo-0000651960] homotypic Discocactus catingicola subsp. griseus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651942] synonym Discocactus catingicola subsp. griseus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651942]basionym Discocactus griseus Buining & Brederoo in Succulenta (Netherlands) 54: 186. 1975. [wfo-0000651960] homotypic Discocactus catingicola var. griseus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993. [wfo-0000651941] synonym Discocactus catingicola var. nigrisaetosus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993. [wfo-0000651943]basionym Discocactus nigrisaetosus Buining & Brederoo Discocactus: 129. 1976. [wfo-0000651991] synonym Discocactus catingicola subsp. rapirhizus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993. [wfo-0000651945]basionym Discocactus rapirhizus Buining & Brederoo in Ashingtonia 2: 44. 1975. [wfo-0000652007] synonym Discocactus crassispinus P.J.Braun & Esteves in Cact. Succ. J. (Los Angeles) 66: 228. 1994. [wfo-0000651948] synonym Discocactus crassispinus subsp. araguaiensis P.J.Braun & Esteves in Kakteen And. Sukk. 47: 194. 1996. [wfo-0000651949] synonym Discocactus estevesii Diers in Cact. Succ. J. (Los Angeles) 50: 83. 1978. [wfo-0000651954] synonym Discocactus griseus Buining & Brederoo in Succulenta (Netherlands) 54: 186. 1975. [wfo-0000651960]homotypic Discocactus catingicola var. griseus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993. [wfo-0000651941] homotypic Discocactus catingicola subsp. griseus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651942] synonym Discocactus heptacanthus subsp. catingicola (Buining & Brederoo) N.P.Taylor & Zappi in Cactaceae Consensus Init. 3: 7. 1997. [wfo-0000651973]basionym Discocactus catingicola Buining & Brederoo in Kakteen And. Sukk. 25: 265–267. 1974. [wfo-0000651940] synonym Discocactus nigrisaetosus Buining & Brederoo Discocactus: 129. 1976. [wfo-0000651991]homotypic Discocactus catingicola var. nigrisaetosus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993. [wfo-0000651943] synonym Discocactus piauiensis P.J.Braun & Esteves in Kakteen And. Sukk. 46: 62. 1995. [wfo-0000651995] synonym Discocactus prominentigibbus Diers & Esteves in Kakteen And. Sukk. 39: 18. 1988. [wfo-0000652002] synonym Discocactus rapirhizus Buining & Brederoo in Ashingtonia 2: 44. 1975. [wfo-0000652007]homotypic Discocactus catingicola subsp. rapirhizus (Buining & Brederoo) P.Braun & Esteves in Kakteen And. Sukk. 44: 112. 1993. [wfo-0000651945] synonym Discocactus silvaticus Buining & Brederoo Discocactus: 140. 1976. [wfo-0000652011] synonym Discocactus spinosior Buining & Brederoo Discocactus: 146. 1976. [wfo-0000652012] D. diersianus Esteves in Cact. Succ. J. (Los Angeles) 51: 179. 1979. [wfo-0000651951]synonym Discocactus cephaliaciculosus Buining & Brederoo ex P.J.Braun & Esteves in Kakteen And. Sukk. 46: 63. 1995. [wfo-0000651946]homotypic Discocactus diersianus subsp. cephaliaciculosus (Buining & Brederoo ex P.J.Braun & Esteves) Guiggi in Cactology 5 (Suppl. 8): 2. 2020. [wfo-0001430582] synonym Discocactus cephaliaciculosus subsp. nudicephalus P.J.Braun & Esteves in Kakteen And. Sukk. 46: 63. 1995. [wfo-0000651947]homotypic Discocactus diersianus subsp. nudicephalus (P.J.Braun & Esteves) Guiggi in Cactology 5 (Suppl. 8): 2. 2020. [wfo-0001430583] synonym Discocactus diersianus subsp. cephaliaciculosus (Buining & Brederoo ex P.J.Braun & Esteves) Guiggi in Cactology 5 (Suppl. 8): 2. 2020. [wfo-0001430582]basionym Discocactus cephaliaciculosus Buining & Brederoo ex P.J.Braun & Esteves in Kakteen And. Sukk. 46: 63. 1995. [wfo-0000651946] synonym Discocactus diersianus var. goianus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 113. 1993. [wfo-0000651952]basionym Discocactus goianus Diers & Esteves in Kakteen And. Sukk. 31: 79. 1980. [wfo-0000651959] homotypic Discocactus diersianus subsp. goianus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651953] synonym Discocactus diersianus subsp. goianus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651953]basionym Discocactus goianus Diers & Esteves in Kakteen And. Sukk. 31: 79. 1980. [wfo-0000651959] homotypic Discocactus diersianus var. goianus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 113. 1993. [wfo-0000651952] synonym Discocactus diersianus subsp. nudicephalus (P.J.Braun & Esteves) Guiggi in Cactology 5 (Suppl. 8): 2. 2020. [wfo-0001430583]basionym Discocactus cephaliaciculosus subsp. nudicephalus P.J.Braun & Esteves in Kakteen And. Sukk. 46: 63. 1995. [wfo-0000651947] synonym Discocactus goianus Diers & Esteves in Kakteen And. Sukk. 31: 79. 1980. [wfo-0000651959]homotypic Discocactus diersianus var. goianus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 113. 1993. [wfo-0000651952] homotypic Discocactus diersianus subsp. goianus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651953] synonym Discocactus hartmannii var. mamillosus (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651968]basionym Discocactus mamillosus Buining & Brederoo in Kakteen And. Sukk. 25: 217. 1974. [wfo-0000651988] synonym Discocactus lindaianus Diers & Esteves in Cact. Succ. J. (Los Angeles) 53: 56. 1981. [wfo-0000651984] synonym Discocactus mamillosus Buining & Brederoo in Kakteen And. Sukk. 25: 217. 1974. [wfo-0000651988]homotypic Discocactus hartmannii var. mamillosus (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651968] synonym Discocactus paranaensis Backeb. Cactaceae 4: 2628. 1960. [wfo-0000651993] D. ferricola Buining & Brederoo in Kakteen And. Sukk. 26(1): 2. 1975. [wfo-0000651956]homotypic Discocactus boliviensis subsp. ferricola (Buining & Brederoo) Guiggi in Cactology 5 (Suppl. 8): 2. 2020. [wfo-0001430581] synonym Discocactus boliviensis subsp. ferricola (Buining & Brederoo) Guiggi in Cactology 5 (Suppl. 8): 2. 2020. [wfo-0001430581]basionym Discocactus ferricola Buining & Brederoo in Kakteen And. Sukk. 26(1): 2. 1975. [wfo-0000651956] D. hartmannii (K.Schum.) Britton & Rose Cactaceae 3: 217, f. 230. 1922. [wfo-0000651961]basionym Echinocactus hartmannii K.Schum. in Monatsschr. Kakteenk. 10: 170. 1900. [wfo-0000660496] homotypic Neodiscocactus hartmannii (K.Schum.) Y.Itô Cactaceae: 532. 1981. [wfo-0000380062] synonym Discocactus hartmannii var. bonitoensis (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651962]basionym Discocactus magnimammus subsp. bonitoensis Buining & Brederoo Discocactus: 204. 1976. [wfo-0000651987] synonym Discocactus hartmannii subsp. giganteus P.J.Braun & Esteves in Succulenta (Netherlands) 75: 260. 1996. [wfo-0000651963] synonym Discocactus hartmannii var. patulifolius (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651969]basionym Discocactus patulifolius Buining & Brederoo in Kakteen And. Sukk. 25: 195. 1974. [wfo-0000651994] homotypic Discocactus hartmannii subsp. patulifolius (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651970] synonym Discocactus hartmannii subsp. patulifolius (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651970]basionym Discocactus patulifolius Buining & Brederoo in Kakteen And. Sukk. 25: 195. 1974. [wfo-0000651994] homotypic Discocactus hartmannii var. patulifolius (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651969] synonym Discocactus hartmannii subsp. setosiflorus P.J.Braun & Esteves in Kakteen And. Sukk. 45(2): 27. 1994. [wfo-0000651971] synonym Discocactus magnimammus subsp. bonitoensis Buining & Brederoo Discocactus: 204. 1976. [wfo-0000651987]homotypic Discocactus hartmannii var. bonitoensis (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651962] synonym Discocactus pachythele Buining & Brederoo in Cact. Succ. J. (Los Angeles) 47: 163. 1975. [wfo-0000651992] synonym Discocactus patulifolius Buining & Brederoo in Kakteen And. Sukk. 25: 195. 1974. [wfo-0000651994]homotypic Discocactus hartmannii var. patulifolius (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651969] homotypic Discocactus hartmannii subsp. patulifolius (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651970] synonym Echinocactus hartmannii K.Schum. in Monatsschr. Kakteenk. 10: 170. 1900. [wfo-0000660496]homotypic Discocactus hartmannii (K.Schum.) Britton & Rose Cactaceae 3: 217, f. 230. 1922. [wfo-0000651961] homotypic Neodiscocactus hartmannii (K.Schum.) Y.Itô Cactaceae: 532. 1981. [wfo-0000380062] synonym Neodiscocactus hartmannii (K.Schum.) Y.Itô Cactaceae: 532. 1981. [wfo-0000380062]basionym Echinocactus hartmannii K.Schum. in Monatsschr. Kakteenk. 10: 170. 1900. [wfo-0000660496] homotypic Discocactus hartmannii (K.Schum.) Britton & Rose Cactaceae 3: 217, f. 230. 1922. [wfo-0000651961] D. heptacanthus (Barb.Rodr.) Britton & Rose Cactaceae 3: 218, f. 232. 1922. [wfo-0000651972]basionym Malacocarpus heptacanthus Barb.Rodr. Pl. Mattogr.: 29. 1898. [wfo-0001288400] homotypic Neodiscocactus heptacanthus (Barb.Rodr.) Y.Itô Cactaceae: 532. 1981. [wfo-0000380064] synonym Discocactus flavispinus Buining & Brederoo Discocactus: 157. 1976. [wfo-0000651958] synonym Discocactus hartmannii var. magnimammus (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651964]basionym Discocactus magnimammus Buining & Brederoo in Kakteen And. Sukk. 25: 242. 1974. [wfo-0000651986] homotypic Discocactus hartmannii subsp. magnimammus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651965] homotypic Discocactus heptacanthus subsp. magnimammus (Buining & Brederoo) N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000651974] synonym Discocactus hartmannii subsp. magnimammus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651965]basionym Discocactus magnimammus Buining & Brederoo in Kakteen And. Sukk. 25: 242. 1974. [wfo-0000651986] homotypic Discocactus hartmannii var. magnimammus (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651964] homotypic Discocactus heptacanthus subsp. magnimammus (Buining & Brederoo) N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000651974] synonym Discocactus heptacanthus subsp. goiasensis P.J.Braun in Kakteen And. Sukk. 70(11): 347. 2019. [wfo-0001302984] synonym Discocactus heptacanthus subsp. magnimammus (Buining & Brederoo) N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000651974]basionym Discocactus magnimammus Buining & Brederoo in Kakteen And. Sukk. 25: 242. 1974. [wfo-0000651986] homotypic Discocactus hartmannii var. magnimammus (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651964] homotypic Discocactus hartmannii subsp. magnimammus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651965] synonym Discocactus heptacanthus subsp. melanochlorus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 103. 1993. [wfo-0000651975]basionym Discocactus melanochlorus Buining & Brederoo Discocactus: 135. 1976. [wfo-0000651989] synonym Discocactus heptacanthus var. semicampaniflorus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 103. 1993. [wfo-0000651976]basionym Discocactus semicampaniflorus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 47: 122. 1975. [wfo-0000652008] synonym Discocactus magnimammus Buining & Brederoo in Kakteen And. Sukk. 25: 242. 1974. [wfo-0000651986]homotypic Discocactus hartmannii var. magnimammus (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985. [wfo-0000651964] homotypic Discocactus hartmannii subsp. magnimammus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651965] homotypic Discocactus heptacanthus subsp. magnimammus (Buining & Brederoo) N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000651974] synonym Discocactus melanochlorus Buining & Brederoo Discocactus: 135. 1976. [wfo-0000651989]homotypic Discocactus heptacanthus subsp. melanochlorus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 103. 1993. [wfo-0000651975] synonym Discocactus patulifolius Buining & Brederoo Kakteen And. Sukk. 25: 195 (-197), figs. 1974 [wfo-0001253758] synonym Discocactus semicampaniflorus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 47: 122. 1975. [wfo-0000652008]homotypic Discocactus heptacanthus var. semicampaniflorus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 103. 1993. [wfo-0000651976] synonym Discocactus silicicola Buining & Brederoo in Cact. Succ. J. (Los Angeles) 47: 214. 1975. [wfo-0000652010] synonym Discocactus squamibaccatus Buining & Brederoo Discocactus: 183. 1976. [wfo-0000652013] synonym Discocactus subterraneo-proliferans Diers & Esteves in Kakteen And. Sukk. 31: 271. 1980. [wfo-0000652015] synonym Malacocarpus heptacanthus Barb.Rodr. Pl. Mattogr.: 29. 1898. [wfo-0001288400]homotypic Discocactus heptacanthus (Barb.Rodr.) Britton & Rose Cactaceae 3: 218, f. 232. 1922. [wfo-0000651972] homotypic Neodiscocactus heptacanthus (Barb.Rodr.) Y.Itô Cactaceae: 532. 1981. [wfo-0000380064] synonym Neodiscocactus heptacanthus (Barb.Rodr.) Y.Itô Cactaceae: 532. 1981. [wfo-0000380064]basionym Malacocarpus heptacanthus Barb.Rodr. Pl. Mattogr.: 29. 1898. [wfo-0001288400] homotypic Discocactus heptacanthus (Barb.Rodr.) Britton & Rose Cactaceae 3: 218, f. 232. 1922. [wfo-0000651972] D. horstii Buining & Brederoo in: Krainz, H., Kakteen 52: CVIf. 1973. [wfo-0000651977]synonym Discocactus woutersianus Brederoo & Broek in Succulenta (Netherlands) 59: 198. 1980. [wfo-0000652018] D. petr-halfarii Zachar in Kaktusy (Brno) 44: 45. 2008. [wfo-0001430585]homotypic Discocactus zehntneri subsp. petr-halfarii (Zachar) M.R.Santos & M.C.Machado in Phytotaxa 207: 209. 2015. [wfo-0001430587] synonym Discocactus bahiensis subsp. petr-halfari (Zachar) P.J.Braun & Esteves in Kakteen And. Sukk. 59: 184. 2008. [wfo-0000509081] synonym Discocactus bahiensis subsp. petr-halfarii (Zachar) P.J.Braun & Esteves in Kakteen And. Sukk. 59: 184. 2008. [wfo-0001430579] synonym Discocactus petr-halfari Zachar in Kaktusy (Brno) 44: 45. 2008. [wfo-0000509082] synonym Discocactus zehntneri subsp. alagoinhensis Zachar in Kaktusy (Brno) 57(4): 115. 2021. [wfo-0001302983] synonym Discocactus zehntneri subsp. petr-halfarii (Zachar) M.R.Santos & M.C.Machado in Phytotaxa 207: 209. 2015. [wfo-0001430587]basionym Discocactus petr-halfarii Zachar in Kaktusy (Brno) 44: 45. 2008. [wfo-0001430585] D. piscibarbarus N.P.Taylor & Olsthoorn Bradleya 41: 134 2023 [wfo-1000050710] D. placentiformis (Lehm.) K.Schum. in: Engler, H.G.A. & Prantl, K. A. E., Nat. Pflanzenfam. 3(6a): 190. 1894. [wfo-0000651996]basionym Cactus placentiformis Lehm. in Del. Sem. Hort. Hamburg.: . 1826. [wfo-0000578106] homotypic Echinocactus placentiformis (Lehm.) K.Schum. in: Martius, Fl. Bras. 4(2): 246. 1890. [wfo-0000660802] homotypic Melocactus placentiformis (Lehm.) DC. Prodr. 3: 460. 1828. [wfo-0000375452] synonym Cactus alteolens (Lem. ex A.Dietr.) Kuntze in Deutsche Bot. Monatsschr. 21: 173. 1903. [wfo-0000577651] synonym Cactus placentiformis Lehm. in Del. Sem. Hort. Hamburg.: . 1826. [wfo-0000578106]homotypic Discocactus placentiformis (Lehm.) K.Schum. in: Engler, H.G.A. & Prantl, K. A. E., Nat. Pflanzenfam. 3(6a): 190. 1894. [wfo-0000651996] homotypic Echinocactus placentiformis (Lehm.) K.Schum. in: Martius, Fl. Bras. 4(2): 246. 1890. [wfo-0000660802] homotypic Melocactus placentiformis (Lehm.) DC. Prodr. 3: 460. 1828. [wfo-0000375452] synonym Discocactus alteolens Lem. ex A.Dietr. in Allg. Gartenzeitung 14: 202. 1846. [wfo-0000651927]homotypic Discocactus placentiformis var. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000651997] homotypic Discocactus placentiformis subsp. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651998] synonym Discocactus alteolens K.Schum. in: Engler, H.G.A. & Prantl, K. A. E., Nat. Pflanzenfam. 3(6a): 190. 1894. [wfo-0000651928] synonym Discocactus besleri F.A.C.Weber Dict. Hort. 1: 450. 1896. [wfo-0000651934] synonym Discocactus crystallophilus Diers & Esteves in Kakteen And. Sukk. 32: 261. 1981. [wfo-0000651950] synonym Discocactus insignis Pfeiff. in Allg. Gartenzeitung 5: 241. 1837. [wfo-0000651979] synonym Discocactus latispinus Buining & Brederoo Discocactus: 95. 1976. [wfo-0000651980] synonym Discocactus latispinus subsp. pseudolatispinus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000651981]basionym Discocactus pseudolatispinus Diers & Esteves in Kakteen And. Sukk. 38: 247. 1987. [wfo-0000652004] synonym Discocactus latispinus subsp. pulvinicapitatus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000651982]basionym Discocactus pulvinicapitatus Buining & Brederoo Discocactus: 100. 1976. [wfo-0000652006] synonym Discocactus lehmannii Pfeiff. in Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 19(1): 120. 1839. [wfo-0000651983] synonym Discocactus linkii Pfeiff. in Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 19(1): 120. 1839. [wfo-0000651985] synonym Discocactus multicolorispinus P.J.Braun & Brederoo in Kakteen And. Sukk. 32: 59. 1981. [wfo-0000651990]homotypic Discocactus placentiformis subsp. multicolorispinus P.J.Braun & Esteves in Kakteen And. Sukk. 59: 212. 2008. [wfo-0001430586] synonym Discocactus placentiformis subsp. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651998]basionym Discocactus alteolens Lem. ex A.Dietr. in Allg. Gartenzeitung 14: 202. 1846. [wfo-0000651927] homotypic Discocactus placentiformis var. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000651997] synonym Discocactus placentiformis var. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000651997]basionym Discocactus alteolens Lem. ex A.Dietr. in Allg. Gartenzeitung 14: 202. 1846. [wfo-0000651927] homotypic Discocactus placentiformis subsp. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000651998] synonym Discocactus placentiformis subsp. multicolorispinus P.J.Braun & Esteves in Kakteen And. Sukk. 59: 212. 2008. [wfo-0001430586]basionym Discocactus multicolorispinus P.J.Braun & Brederoo in Kakteen And. Sukk. 32: 59. 1981. [wfo-0000651990] synonym Discocactus placentiformis subsp. multicolorispinus (P.J.Braun & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44(5): 105. 1993. [wfo-0000509083] synonym Discocactus placentiformis var. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000652000]basionym Discocactus pugionacanthus Buining & Brederoo Discocactus: 61. 1976. [wfo-0000652005] homotypic Discocactus placentiformis subsp. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652001] synonym Discocactus placentiformis subsp. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652001]basionym Discocactus pugionacanthus Buining & Brederoo Discocactus: 61. 1976. [wfo-0000652005] homotypic Discocactus placentiformis var. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000652000] synonym Discocactus pseudolatispinus Diers & Esteves in Kakteen And. Sukk. 38: 247. 1987. [wfo-0000652004]homotypic Discocactus latispinus subsp. pseudolatispinus (Diers & Esteves) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000651981] synonym Discocactus pugionacanthus Buining & Brederoo Discocactus: 61. 1976. [wfo-0000652005]homotypic Discocactus placentiformis var. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000652000] homotypic Discocactus placentiformis subsp. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652001] synonym Discocactus pulvinicapitatus Buining & Brederoo Discocactus: 100. 1976. [wfo-0000652006]homotypic Discocactus latispinus subsp. pulvinicapitatus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993. [wfo-0000651982] synonym Discocactus tricornis Monv. ex Pfeiff. & Otto Abbild. Beschr. Cact. 2: t. 28. 1850. [wfo-0000652017] synonym Echinocactus alteolens Lem. Hortus Van Houtteanus 1(2): 23. 1846. [wfo-0000660176] synonym Echinocactus alteolens (Lem. ex A.Dietr.) K.Schum. Fl. Bras. 4(2): 246. 1890. [wfo-0000660178] synonym Echinocactus placentiformis (Lehm.) K.Schum. in: Martius, Fl. Bras. 4(2): 246. 1890. [wfo-0000660802]basionym Cactus placentiformis Lehm. in Del. Sem. Hort. Hamburg.: . 1826. [wfo-0000578106] homotypic Discocactus placentiformis (Lehm.) K.Schum. in: Engler, H.G.A. & Prantl, K. A. E., Nat. Pflanzenfam. 3(6a): 190. 1894. [wfo-0000651996] homotypic Melocactus placentiformis (Lehm.) DC. Prodr. 3: 460. 1828. [wfo-0000375452] synonym Echinocactus tricornis Monv. ex A.Dietr. in Allg. Gartenzeitung 14: 203. 1846. [wfo-0000661029] synonym Melocactus besleri Link & Otto in Verh. Vereins Beförd. Gartenbaues Königl. Preuss. Staaten 3: 420. 1827. [wfo-0000369358] synonym Melocactus placentiformis (Lehm.) DC. Prodr. 3: 460. 1828. [wfo-0000375452]basionym Cactus placentiformis Lehm. in Del. Sem. Hort. Hamburg.: . 1826. [wfo-0000578106] homotypic Discocactus placentiformis (Lehm.) K.Schum. in: Engler, H.G.A. & Prantl, K. A. E., Nat. Pflanzenfam. 3(6a): 190. 1894. [wfo-0000651996] homotypic Echinocactus placentiformis (Lehm.) K.Schum. in: Martius, Fl. Bras. 4(2): 246. 1890. [wfo-0000660802] D. pseudoinsignis N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000652003] D. subnudus Britton & Rose Cactaceae 3: 217. 1922. [wfo-0000652014]synonym Echinocactus subnudus (Britton & Rose) Luetzelb. in Estud. Bot. Nordéste 3: 111. 1926. [wfo-0000660995] D. zehntneri Britton & Rose Cactaceae 3: 218–219. 1922. [wfo-0000652019]homotypic Echinocactus zehntneri (Britton & Rose) Luetzelb. in Estud. Bot. Nordéste 3: 111. 1926. [wfo-0000661098] synonym Discocactus albispinus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 46: 253. 1974. [wfo-0000651926]homotypic Discocactus zehntneri f. albispinus (Buining & Brederoo) Říha in Kaktusy (Brno) 19: 26-27. 1983. [wfo-0000652021] homotypic Discocactus zehntneri var. albispinus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652022] homotypic Discocactus zehntneri subsp. albispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0000652023] homotypic Discocactus zehntneri subsp. alspinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0001254262] synonym Discocactus zehntneri f. albispinus (Buining & Brederoo) Říha in Kaktusy (Brno) 19: 26-27. 1983. [wfo-0000652021]basionym Discocactus albispinus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 46: 253. 1974. [wfo-0000651926] homotypic Discocactus zehntneri var. albispinus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652022] homotypic Discocactus zehntneri subsp. albispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0000652023] homotypic Discocactus zehntneri subsp. alspinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0001254262] synonym Discocactus zehntneri var. albispinus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652022]basionym Discocactus albispinus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 46: 253. 1974. [wfo-0000651926] homotypic Discocactus zehntneri f. albispinus (Buining & Brederoo) Říha in Kaktusy (Brno) 19: 26-27. 1983. [wfo-0000652021] homotypic Discocactus zehntneri subsp. albispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0000652023] homotypic Discocactus zehntneri subsp. alspinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0001254262] synonym Discocactus zehntneri subsp. albispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0000652023]basionym Discocactus albispinus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 46: 253. 1974. [wfo-0000651926] homotypic Discocactus zehntneri f. albispinus (Buining & Brederoo) Říha in Kaktusy (Brno) 19: 26-27. 1983. [wfo-0000652021] homotypic Discocactus zehntneri var. albispinus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652022] homotypic Discocactus zehntneri subsp. alspinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0001254262] synonym Discocactus zehntneri subsp. alspinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0001254262]basionym Discocactus albispinus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 46: 253. 1974. [wfo-0000651926] homotypic Discocactus zehntneri f. albispinus (Buining & Brederoo) Říha in Kaktusy (Brno) 19: 26-27. 1983. [wfo-0000652021] homotypic Discocactus zehntneri var. albispinus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652022] homotypic Discocactus zehntneri subsp. albispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46(3): 64. 1995. [wfo-0000652023] synonym Discocactus zehntneri subsp. mirohalfarii Zachar in Kaktusy (Brno) 57(3): 95-98. 2021. [wfo-0001302884] synonym Discocactus zehntneri subsp. mirohalfarii Zachar in Kaktusy (Brno) 57(4): 51. 2021. [wfo-0001302923] synonym Echinocactus zehntneri (Britton & Rose) Luetzelb. in Estud. Bot. Nordéste 3: 111. 1926. [wfo-0000661098]basionym Discocactus zehntneri Britton & Rose Cactaceae 3: 218–219. 1922. [wfo-0000652019] D. zehntneri subsp. boomianus (Buining & Brederoo) N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000652027]basionym Discocactus boomianus Buining & Brederoo in Succulenta (Netherlands) 50: 26. 1971. [wfo-0000651937] homotypic Discocactus zehntneri var. boomianus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 218. 1990. [wfo-0000652026] synonym Discocactus araneispinus Buining & Brederoo Discocactus: 39. 1976. [wfo-0000651929]homotypic Discocactus zehntneri var. araneispinus (Buining & Brederoo ex J.Theun.) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652024] homotypic Discocactus zehntneri subsp. araneispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652025] synonym Discocactus boomianus Buining & Brederoo in Succulenta (Netherlands) 50: 26. 1971. [wfo-0000651937]homotypic Discocactus zehntneri var. boomianus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 218. 1990. [wfo-0000652026] homotypic Discocactus zehntneri subsp. boomianus (Buining & Brederoo) N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000652027] synonym Discocactus zehntneri var. araneispinus (Buining & Brederoo ex J.Theun.) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652024]basionym Discocactus araneispinus Buining & Brederoo Discocactus: 39. 1976. [wfo-0000651929] homotypic Discocactus zehntneri subsp. araneispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652025] synonym Discocactus zehntneri subsp. araneispinus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652025]basionym Discocactus araneispinus Buining & Brederoo Discocactus: 39. 1976. [wfo-0000651929] homotypic Discocactus zehntneri var. araneispinus (Buining & Brederoo ex J.Theun.) P.J.Braun in Succulenta (Netherlands) 69: 215. 1990. [wfo-0000652024] synonym Discocactus zehntneri var. boomianus (Buining & Brederoo) P.J.Braun in Succulenta (Netherlands) 69: 218. 1990. [wfo-0000652026]basionym Discocactus boomianus Buining & Brederoo in Succulenta (Netherlands) 50: 26. 1971. [wfo-0000651937] homotypic Discocactus zehntneri subsp. boomianus (Buining & Brederoo) N.P.Taylor & Zappi in Bradleya 9: 86. 1991. [wfo-0000652027] synonym Discocactus zehntneri var. horstiorum P.J.Braun in Succulenta (Netherlands) 69: 218. 1990. [wfo-0000652029]homotypic Discocactus zehntneri subsp. horstiorum (P.J.Braun) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652030] synonym Discocactus zehntneri subsp. horstiorum (P.J.Braun) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995. [wfo-0000652030]basionym Discocactus zehntneri var. horstiorum P.J.Braun in Succulenta (Netherlands) 69: 218. 1990. [wfo-0000652029] Discocactus: Unplaced Names
valid Discocactus biformis Walp. Repert. Bot. Syst. 5: 817. 1846. [wfo-0000651935] valid Discocactus braunii Z.J.G.Miranda, T.Van Nguyen & Seringer Kakteen And. Sukk. 76(6): 167 (2025) [wfo-1000082151] valid Discocactus fariae-peresii P.J.Braun in Kakteen And. Sukk. 67: 33. 2016. [wfo-0001430584]