Mammillaria wrightii var. wilcoxii (Toumey ex K.Schum.) W.T.Marshall, Ariz. Cactuses: 100. 1950
Mammillaria wrightii var. wilcoxii, Ariz. Cactuses: 100. 1950
is new combination for Mammillaria wilcoxii, Gesamtbeschr. Kakt.: 545. 1897–1899
Mammillaria wrightii var. wilcoxii, Ariz. Cactuses: 100. 1950
Taxon for this name