Mammillaria guerreronis var. zapilotensis (R.T.Craig) Backeb. in Cact. Succ. J. (Los Angeles) 23: 152. 1951
Mammillaria guerreronis var. zapilotensis in Cact. Succ. J. (Los Angeles) 23: 152. 1951
is new combination for Mammillaria zapilotensis, Mammill. Handb.: 132. 1945