Discocactus hartmannii subsp. magnimammus (Buining & Brederoo) P.J.Braun & Esteves in Kakteen And. Sukk. 46: 64. 1995
Discocactus hartmannii subsp. magnimammus in Kakteen And. Sukk. 46: 64. 1995
is new combination for Discocactus magnimammus in Kakteen And. Sukk. 25: 242. 1974