Islaya grandiflorens Rauh & Backeb., Descr. Cact. Nov. 1: 33. 1957 ["1956"]
Islaya grandiflorens, Descr. Cact. Nov. 1: 33. 1957 ["1956"]
is basionym for Neoporteria islayensis f. grandiflorens in Cact. Succ. J. Gr. Brit. 28: 56. 1966
Islaya grandiflorens, Descr. Cact. Nov. 1: 33. 1957 ["1956"]
Taxon for this name