Cactus pondii (Greene) J.M.Coult. in Contr. U.S. Natl. Herb. 3: 102. 1894 Cactus pondii (Greene) J.M.Coult. in Contr. U.S. Natl. Herb. 3: 102. 1894is new combination for Mammillaria pondii Greene in Pittonia 1(6): 268. 1889Taxon for this nameCactus pondii (Greene) J.M.Coult.