Mammillaria macdougalii Rose, Stand. Cycl. Hort. 4: 1982. 1916
Mammillaria macdougalii, Stand. Cycl. Hort. 4: 1982. 1916
is basionym for Mammillaria heyderi subsp. macdougalii, Mammillaria Postscripts 6: 10. 1997
is basionym for Mammillaria heyderi var. macdougalii in Proc. Calif. Acad. Sci., ser. 4, 25: 265. 1944
is basionym for Mammillaria gummifera var. macdougalii, Cacti Ariz., ed. 3: 22. 1969
is basionym for Neomammillaria macdougalii, Cactaceae 4: 74. 1923