Melocactus oreas f. azulensis (Buining, Brederoo & Theunissen) P.J.Braun in Bradleya 6: 95. 1988 Melocactus oreas f. azulensis (Buining, Brederoo & Theunissen) P.J.Braun in Bradleya 6: 95. 1988is new combination for Melocactus azulensis Buining, Brederoo & Theunissen in Kakteen And. Sukk. 28: 154. 1977Taxon for this nameMelocactus oreas f. azulensis (Buining, Brederoo & Theunissen) P.J.Braun