Mammillaria gracilis var. pulchella Salm-Dyck, Cact. Hort. Dyck., ed. 1849: 13, 103. 1850
Mammillaria gracilis var. pulchella, Cact. Hort. Dyck., ed. 1849: 13, 103. 1850
is new combination for Mammillaria pulchella, Cact. Hort. Dyck., ed. 1849: 10, 94. 1850