Mammillaria kuentziana P.Fearn & B.Fearn in Natl. Cact. Succ. J. 18: 33. 1963 Mammillaria kuentziana P.Fearn & B.Fearn in Natl. Cact. Succ. J. 18: 33. 1963Taxon for this nameMammillaria kuentziana P.Fearn & B.Fearn