Mammillaria polytricha var. laevior Salm-Dyck ex Labour., Monogr. Cact.: 105. 1853 Mammillaria polytricha var. laevior Salm-Dyck ex Labour., Monogr. Cact.: 105. 1853Taxon for this nameMammillaria polytricha var. laevior Salm-Dyck ex Labour.
