Mammillaria magnimamma var. divergens (DC.) Borg, Cacti, ed. 1: 345. 1937
Mammillaria magnimamma var. divergens, Cacti, ed. 1: 345. 1937
is new combination for Mammillaria divergens in Mém. Mus. Hist. Nat. 17: 113. 1828
Mammillaria magnimamma var. divergens, Cacti, ed. 1: 345. 1937
Taxon for this name