Melocactus oreas var. longispinus (Buining, Brederoo & Theunissen) P.J.Braun in Bradleya 6: 95. 1988
Melocactus oreas var. longispinus in Bradleya 6: 95. 1988
is new combination for Melocactus longispinus in Succulenta (Netherlands) 56(6): 137. 1977