Mammillaria glassii subsp. siberiensis (A.B.Lau) U.Guzmán, Cat. Cactaceas Mex.: 126. 2003
Mammillaria glassii subsp. siberiensis, Cat. Cactaceas Mex.: 126. 2003
is new combination for Mammillaria glassii var. siberiensis in Cact. Succ. J. (Los Angeles) 57: 198. 1985