Ariocarpus retusus subsp. horacekii Halda & Panar. in Acta Mus. Richnov., Sect. Nat., 5: 163. 1998 Ariocarpus retusus subsp. horacekii Halda & Panar. in Acta Mus. Richnov., Sect. Nat., 5: 163. 1998Taxon for this nameAriocarpus retusus subsp. horacekii Halda & Panar.
