Thelocactus subterraneus var. zaragosae (Glass & R.A.Foster) Bravo in Cact. Suc. Mex. 25: 65. 1980
Thelocactus subterraneus var. zaragosae in Cact. Suc. Mex. 25: 65. 1980
is new combination for Gymnocactus subterraneus var. zaragosae in Cact. Succ. J. (Los Angeles) 50(6): 283. 1978