Mammillaria centricirrha var. megacantha (Salm-Dyck) Schelle, Handb. Kakteenkult.: 267. 1907
Mammillaria centricirrha var. megacantha, Handb. Kakteenkult.: 267. 1907
is new combination for Mammillaria megacantha, Cact. Hort. Dyck., ed. 1844: 123. 1845