Mammillaria dioica var. incerta (Parish) Munz, Aliso 4(1): 94. 1958
Mammillaria dioica var. incerta, Aliso 4(1): 94. 1958
is new combination for Mammillaria incerta, Fl. Calif. 2: 549. 1936
Mammillaria dioica var. incerta, Aliso 4(1): 94. 1958
Taxon for this name