Neomammillaria obscura (Hildm.) Britton & Rose, Cactaceae 4: 87. 1923 Neomammillaria obscura (Hildm.) Britton & Rose, Cactaceae 4: 87. 1923is new combination for Mammillaria obscura Hildm. in Monatsschr. Kakteenk. 1: 52. 1891Taxon for this nameNeomammillaria obscura (Hildm.) Britton & Rose