Mammillaria matudae f. duocentralis Fittkau in Cact. Suc. Mex. 16: 43. 1971 Mammillaria matudae f. duocentralis Fittkau in Cact. Suc. Mex. 16: 43. 1971Taxon for this nameMammillaria matudae f. duocentralis Fittkau
