Mammillaria rhodantha subsp. pringlei (J.M.Coult.) D.R.Hunt, Mammillaria Postscripts 6: 8. 1997
Mammillaria rhodantha subsp. pringlei, Mammillaria Postscripts 6: 8. 1997
is new combination for Cactus pringlei in Contr. U.S. Natl. Herb. 3(2): 109. 1894