Discocactus nigrisaetosus Buining & Brederoo species synonym

Discocactus latispinus Buining & Brederoo species synonym

Discocactus boliviensis Backeb. ex J.Theun. species synonym

Discocactus multicolorispinus subsp. multicolorispinus subspecies synonym

Discocactus pugionacanthus Buining & Brederoo species synonym

Discocactus pseudolatispinus subsp. pseudolatispinus subspecies synonym

Discocactus magnimammus subsp. bonitoensis Buining & Brederoo subspecies synonym

Echinocactus alteolens (Lam. ex A.Dietr.) K.Schum. species synonym

Discocactus fariae-peresii P.J.Braun species accepted

Discocactus boliviensis Backeb. ex Buining species synonym

Discocactus gentryi S.M.Hayden species accepted

Discocactus boliviensis subsp. ferricola (Buining & Brederoo) Guiggi subspecies synonym

Echinocactus tricornis Monv. species homotypic synonym

Discocactus tricornis Monv. species homotypic synonym

Discocactus silvaticus Buining & Brederoo species synonym

Discocactus alteolens (Lem.) A.Dietr. species synonym

Discocactus praminentigibbus Diers & Esteves species synonym

Cactus alteolens (Lem.) Kuntze species synonym

Discocactus zehntneri subsp. alspinus (Buining ex Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus spinosior Buining & Brederoo species synonym

Melocactus placentiformis (Lehm.) DC. species synonym

Melocactus besleri Link & Otto species synonym

Discocactus placentiformis var. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves variety synonym

Discocactus placentiformis var. alteolens (Lem.) P.J.Braun & Esteves variety synonym

Discocactus hartmannii var. patulifolius (Buining & Brederoo) P.J.Braun variety synonym

Discocactus hartmannii var. magnimammus (Buining & Brederoo) P.J.Braun variety synonym

Discocactus catingicola var. griseus (Buining & Brederoo) P.J.Braun & Esteves variety synonym

Discocactus zehntneri Britton & Rose species accepted

Discocactus zehnteri species accepted

Discocactus placentiformis (Lehm.) K.Schum. species accepted

Discocactus magnimammus Buining & Brederoo species synonym

Discocactus latispinus Buining ex J.Theun. species synonym

Discocactus heptacanthus (Rodr.) Britton & Rose species accepted

Discocactus hartmannii (K.Schum.) Britton & Rose species accepted

Discocactus diersianus Esteves species accepted

Discocactus crassispinus P.J.Braun & Esteves species synonym

Discocactus catingicola Buining & Brederoo species accepted

Discocactus bahiensis Britton & Rose species accepted

Discocactus milticolorispinus P.J.Braun & Brederoo species synonym

Cactus placentiformis Lehm. species synonym

Echinocactus placentiformis (Lehm.) K.Schum. species synonym

Echinocactus hartmannii K.Schum. species synonym

Discocactus estevesii Diers species synonym

Echinocactus alteolens Lem. species synonym

Discocactus woutersianus Brederoo & Broek species synonym

Discocactus tricornis Monv. ex Pfeiff. & Otto species synonym

Discocactus subnudus Britton & Rose species doubtful

Discocactus spinosior Buining ex J.Theun. species synonym

Discocactus silvaticus Buining ex J.Theun. species synonym

Discocactus silicicola Buining & Brederoo species synonym

Discocactus rapirhizus Buining & Brederoo species synonym

Discocactus rapirhizua, 1975 species synonym

Discocactus pulvinicapitatus Buining & Brederoo species synonym

Discocactus pugionacanthus Buining ex J.Theun. species synonym

Discocactus pseudolatispinus Diers & Esteves species synonym

Discocactus pseudoinsignis N.P.Taylor & Zappi species accepted

Discocactus prominentigibbus Diers & Esteves species synonym

Discocactus promentigibbus Diers & Esteves species synonym

Discocactus placentiformis subsp. pugionacanthus (Buining & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus placentiformis subsp. multicolorispinus (P.J.Braun & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus placentiformis subsp. alteolens (Lem.) P.J.Braun & Esteves subspecies synonym

Discocactus piauiensis P.J.Braun & Esteves species synonym

Discocactus patulilolius Buining & Brederoo species synonym

Discocactus patulifolius Buining & Brederoo species synonym

Discocactus pachythele Buining & Brederoo species synonym

Discocactus nigrisaetosus Buining ex J.Theun. species synonym

Discocactus multicolorispinus P.J.Braun & Brederoo species synonym

Discocactus mamillosus Buining & Brederoo species synonym

Discocactus magnimammus subsp. bonitoensis Buining ex J.Theun. subspecies synonym

Discocactus linkii Pfeiff. species synonym

Discocactus lehmannii Pfeiff. species synonym

Discocactus latispinus subsp. pulvinicapitatus (Buining & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus latispinus subsp. pseudolatispinus (Diers & Esteves) P.J.Braun & Esteves subspecies synonym

Discocactus lankesteri Kimnach, 1979 species accepted

Discocactus insignis Pfeiff. species synonym

Discocactus horstii Buining & Brederoo species accepted

Discocactus horichii Kimnach, 1979 species accepted

Discocactus heptacanthus subsp. magnimammus (Buining & Brederoo) N.P.Taylor & Zappi subspecies synonym

Discocactus heptacanthus subsp. catingicola (Buining & Brederoo) N.P.Taylor & Zappi subspecies synonym

Discocactus hartmannii subsp. patulifolius (Buining & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus hartmannii var. mamillosus (Buining & Brederoo) P.J.Braun variety synonym

Discocactus hartmannii subsp. magnimammus (Buining & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus hartmannii subsp. giganteus P.J.Braun & Esteves subspecies synonym

Discocactus hartmannii var. bonitoensis (Buining & Brederoo) P.J.Braun variety synonym

Discocactus griseus Buining & Brederoo species synonym

Discocactus ferricola Buining & Brederoo species accepted

Discocactus crystallophilus Diers & Esteves species synonym

Discocactus crassispinus subsp. araguaiensis P.J.Braun & Esteves subspecies synonym

Discocactus catingicola subsp. rapirhizus (Buining & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus catingicola subsp. rapirhizua (Buining & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus catingicola var. nigrisaetosus (Buining & Brederoo) P.J.Braun & Esteves variety synonym

Discocactus catingicola subsp. griseus (Buining & Brederoo) P.J.Braun & Esteves subspecies synonym

Discocactus boliviensis Backeb. species accepted

Discocactus besleri F.A.C.Weber species synonym

Discocactus alteolens K.Schum. species synonym

Echinocactus tricornis Monv. ex A.Dietr. species synonym

Echinocactus subnudus (Britton & Rose) Luetzelb. species synonym

Neodiscocactus hartmannii (K.Schum.) Y.Itô species synonym

Neodiscocactus boliviensis (Backeb. ex Buining) Y.Itô species synonym

Discocactus subterraneo-prolifera Diers & Esteves species synonym