Neomammillaria perbella (Hildm. ex K.Schum.) Britton & Rose, Cactaceae 4: 111. 1923 Neomammillaria perbella (Hildm. ex K.Schum.) Britton & Rose, Cactaceae 4: 111. 1923is new combination for Mammillaria perbella Hildm. ex K.Schum., Gesamtbeschr. Kakt.: 567. 1897–1899Taxon for this nameNeomammillaria perbella (Hildm. ex K.Schum.) Britton & Rose