Mammillaria pseudosimplex W.Haage & Backeb. in Backeberg, Cactaceae 6 6: 3888. 1962 Mammillaria pseudosimplex W.Haage & Backeb. in Backeberg, Cactaceae 6 6: 3888. 1962Taxon for this nameMammillaria pseudosimplex W.Haage & Backeb.
