Mammillaria dioica var. cerralboa (Britton & Rose) Neutel. in Succulenta (Netherlands) 65: 119. 1986
Mammillaria dioica var. cerralboa in Succulenta (Netherlands) 65: 119. 1986
is new combination for Neomammillaria cerralboa, Cactaceae 4: 116, f. 121a. 1923