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