Neomammillaria spinosissima (Lem.) Britton & Rose, Cactaceae 4: 117–119, f. 124–125. 1923 Neomammillaria spinosissima (Lem.) Britton & Rose, Cactaceae 4: 117–119, f. 124–125. 1923is new combination for Mammillaria spinosissima Lem., Cact. Aliq. Nov. 1: 4. 1838Taxon for this nameNeomammillaria spinosissima (Lem.) Britton & Rose