Neomammillaria vetula (Mart.) Britton & Rose, Cactaceae 4: 130–131, f. 143. 1923
Neomammillaria vetula, Cactaceae 4: 130–131, f. 143. 1923
is new combination for Mammillaria vetula in Nov. Actorum Acad. Caes. Leop.-Carol. German. Nat. Cur. 16(1): 338, pl. 24. 1832