Melocactus brederooianus Buining in Succulenta (Netherlands) 51: 28. 1972
Melocactus brederooianus in Succulenta (Netherlands) 51: 28. 1972
is basionym for Melocactus inconcinnus var. brederooianus, Kakteen Südamerika 1: 137. 1979
Melocactus brederooianus in Succulenta (Netherlands) 51: 28. 1972