Mammillaria simplex var. parvimamma (Haw.) Lem., Cact. Gen. Sp. Nov.: 98. 1839
Mammillaria simplex var. parvimamma, Cact. Gen. Sp. Nov.: 98. 1839
is new combination for Mammillaria parvimamma, Suppl. Pl. Succ.: 72. 1819
Mammillaria simplex var. parvimamma, Cact. Gen. Sp. Nov.: 98. 1839