Cactus lasiacanthus var. denudatus (Engelm.) J.M.Coult. in Contr. U.S. Natl. Herb. 3: 100. 1894
Cactus lasiacanthus var. denudatus in Contr. U.S. Natl. Herb. 3: 100. 1894
is new combination for Mammillaria lasiacantha var. denudata, Rep. U.S. Mex. Bound., Cact.: 5. 1859