Melocactus longispinus Buining, Brederoo & Theunissen in Succulenta (Netherlands) 56(6): 137. 1977
Melocactus longispinus in Succulenta (Netherlands) 56(6): 137. 1977
is basionym for Melocactus oreas var. longispinus in Bradleya 6: 95. 1988
Melocactus longispinus in Succulenta (Netherlands) 56(6): 137. 1977
Taxon for this name