Melocactus pachyanthus Buining & Brederoo in Kakteen And. Sukk. 27: 1. 1975 Melocactus pachyanthus Buining & Brederoo in Kakteen And. Sukk. 27: 1. 1975non Melocactus pachyacanthus Buining & Brederoo in Kakteen And. Sukk. 27(1): 1. 1975Taxon for this nameMelocactus pachyanthus Buining & Brederoo