Melocactus dawsonii Bravo in Cact. Suc. Mex. 10: 28. 1965
Melocactus dawsonii in Cact. Suc. Mex. 10: 28. 1965
is basionym for Melocactus curvispinus subsp. dawsonii in Bradleya 9: 77. 1991
Melocactus dawsonii in Cact. Suc. Mex. 10: 28. 1965
Taxon for this name