Coryphantha pseudonickelsiae Backeb. Coryphantha pseudonickelsiae Backeb. in Blätt. Sukkulentenk. 1: 8. 1949 sec. Hunt 2016=Coryphantha indensis L. Bremer, Cact. Suc. Mex. 22: 75 (-76). 1977 syn. sec. Guzmán & al. 2003