Discocactus placentiformis var. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 44: 105. 1993
Discocactus placentiformis var. alteolens in Kakteen And. Sukk. 44: 105. 1993
is new combination for Discocactus alteolens in Allg. Gartenzeitung 14: 202. 1846