Melocactus cremnophilus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 44: 3. 1972 Melocactus cremnophilus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 44: 3. 1972is basionym for Melocactus oreas subsp. cremnophilus (Buining & Brederoo) P.J.Braun in Bradleya 6: 95. 1988Taxon for this nameMelocactus cremnophilus Buining & Brederoo