Melocactus smithii (Alexander) Buining ex G.D.Rowley in Repert. Pl. Succ. 25: 11. 1976
Melocactus smithii in Repert. Pl. Succ. 25: 11. 1976
is new combination for Cactus smithii in Lloydia 2: 200. 1939
Melocactus smithii in Repert. Pl. Succ. 25: 11. 1976