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