Neomammillaria schelhasei (Pfeiff.) Britton & Rose, Cactaceae 4: 149. 1923 Neomammillaria schelhasei (Pfeiff.) Britton & Rose, Cactaceae 4: 149. 1923is new combination for Mammillaria schelhasei Pfeiff. in Allg. Gartenzeitung 6: 274. 1838Taxon for this nameNeomammillaria schelhasei (Pfeiff.) Britton & Rose