Discocactus hartmannii var. magnimammus (Buining & Brederoo) P.J.Braun in Kakteen And. Sukk. 36: 23. 1985
Discocactus hartmannii var. magnimammus in Kakteen And. Sukk. 36: 23. 1985
is new combination for Discocactus magnimammus in Kakteen And. Sukk. 25: 242. 1974