Coryphantha strobiliformis var. durispina (Quehl) L.D.Benson in Cact. Succ. J. (Los Angeles) 41: 189. 1969
Coryphantha strobiliformis var. durispina in Cact. Succ. J. (Los Angeles) 41: 189. 1969
is new combination for Mammillaria strobiliformis var. durispina in Monatsschr. Kakteenk. 17: 87. 1907