Mammillaria discolor var. curvispina (Otto) Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 11. 1850
Mammillaria discolor var. curvispina, Cact. Hort. Dyck., ed. 1849: 11. 1850
is new combination for Mammillaria curvispina in Allg. Gartenzeitung 14: 204. 1846