Ariocarpus retusus Scheidw. [ Mammillaria prismatica (Lemaire) Hemsley]
      
no HD illustration available (m3)
6 85751 Ariocarpus retusus Scheidw. [0] Cactaceae
W. Curtis, Bot. Mag., vol. 119 [ser. 3, vol. 49]: t. 7279 (1893) [J. Allen]