Melocactus intortus var. antonii (Britton) Backeb., Cactaceae 4: 2575. 1960
Melocactus intortus var. antonii, Cactaceae 4: 2575. 1960
is new combination for Cactus antonii in Cact. Succ. J. (Los Angeles) 4: 355. 1933
Melocactus intortus var. antonii, Cactaceae 4: 2575. 1960
Taxon for this name