Neomammillaria viperina (J.A.Purpus) Bravo in Anales Inst. Biol. Univ. Nac. México 1: 124. 1930
Neomammillaria viperina in Anales Inst. Biol. Univ. Nac. México 1: 124. 1930
is new combination for Mammillaria viperina in Monatsschr. Kakteenk. 22: 148. 1912