Melocactus azureus var. krainzianus (Buining & Brederoo) P.J.Braun in Bradleya 6: 94. 1988 Melocactus azureus var. krainzianus (Buining & Brederoo) P.J.Braun in Bradleya 6: 94. 1988is new combination for Melocactus krainzianus Buining & Brederoo in Krainz, Kakteen 62: CVId. 1975Taxon for this nameMelocactus azureus var. krainzianus (Buining & Brederoo) P.J.Braun