Escobariopsis gracilis (Pfeiff.) Doweld in Sukkulenty 3: 40. 2000 Escobariopsis gracilis (Pfeiff.) Doweld in Sukkulenty 3: 40. 2000is new combination for Mammillaria gracilis Pfeiff. in Allg. Gartenzeitung 6: 275. 1838Taxon for this nameEscobariopsis gracilis (Pfeiff.) Doweld