Neomammillaria ortiz-rubiana Bravo in Anales Inst. Biol. Univ. Nac. México 2: 193. 1931 Neomammillaria ortiz-rubiana Bravo in Anales Inst. Biol. Univ. Nac. México 2: 193. 1931Taxon for this nameNeomammillaria ortiz-rubiana Bravo