Melocactus giganteus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 45: 227. 1973 Melocactus giganteus Buining & Brederoo in Cact. Succ. J. (Los Angeles) 45: 227. 1973Taxon for this nameMelocactus giganteus Buining & Brederoo
