Neomammillaria kewensis (Salm-Dyck) Britton & Rose, Cactaceae 4: 104–105, f. 106. 1923 Neomammillaria kewensis (Salm-Dyck) Britton & Rose, Cactaceae 4: 104–105, f. 106. 1923is new combination for Mammillaria kewensis Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 112. 1850Taxon for this nameNeomammillaria kewensis (Salm-Dyck) Britton & Rose