Discocactus placentiformis subsp. alteolens (Lem. ex A.Dietr.) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995
Discocactus placentiformis subsp. alteolens in Kakteen And. Sukk. 46: 64. 1995
is new combination for Discocactus alteolens in Allg. Gartenzeitung 14: 202. 1846