Ariocarpus denegrii (Frič) W.T.Marshall in Cact. Succ. J. (Los Angeles) 18: 56. 1946
Ariocarpus denegrii in Cact. Succ. J. (Los Angeles) 18: 56. 1946
is new combination for Obregonia denegrii in Život v Přír. 29: 14. 1925
Ariocarpus denegrii in Cact. Succ. J. (Los Angeles) 18: 56. 1946