Melocactus acispinosus Buining & Brederoo in Krainz, Kakteen 62: CVId. 1975 Melocactus acispinosus Buining & Brederoo in Krainz, Kakteen 62: CVId. 1975is basionym for Melocactus bahiensis f. acispinosus (Buining & Brederoo) N.P.Taylor in Bradleya 9: 28. 1991Taxon for this nameMelocactus acispinosus Buining & Brederoo