Mammillaria grahamii var. oliviae (Orcutt) L.D.Benson, Cacti Ariz., ed. 3: 22. 1969
Mammillaria grahamii var. oliviae, Cacti Ariz., ed. 3: 22. 1969
is new combination for Mammillaria oliviae in W. Amer. Sci. 12: 163. 1902
Mammillaria grahamii var. oliviae, Cacti Ariz., ed. 3: 22. 1969
Taxon for this name