Mammillaria parkinsonii var. dietrichiae (Tiegel) Backeb., Cactaceae 5: 3217. 1961 Mammillaria parkinsonii var. dietrichiae (Tiegel) Backeb., Cactaceae 5: 3217. 1961Taxon for this nameMammillaria parkinsonii var. dietrichiae (Tiegel) Backeb.
