Neomammillaria wrightii (Engelm.) Britton & Rose, Cactaceae 4: 152. 1923 Neomammillaria wrightii (Engelm.) Britton & Rose, Cactaceae 4: 152. 1923is new combination for Mammillaria wrightii Engelm. in Proc. Amer. Acad. Arts 3: 262. 1856Taxon for this nameNeomammillaria wrightii (Engelm.) Britton & Rose