Mammillaria nickelsiae K.Brandegee in Zoë 5(2): 31. 1900
Mammillaria nickelsiae in Zoë 5(2): 31. 1900
is basionym for Coryphantha nickelsiae, Cactaceae 4: 35. 1923
is basionym for Coryphantha sulcata var. nickelsiae in Cact. Succ. J. (Los Angeles) 41: 188. 1969