Gymnocalycium riteranum Rausch in Kakteen And. Sukk. 23: 180. 1972 Gymnocalycium riteranum Rausch in Kakteen And. Sukk. 23: 180. 1972non Gymnocalycium ritterianum Rausch in Kakteen And. Sukk. 23(7): 180. 1972Taxon for this nameGymnocalycium riteranum Rausch