Rollandia st.-johnii Hosaka , in St. John & Hosaka, Occas. Pap. Bernice P. Bishop Mus. 11(13): 14. 1935.
Type information:
Holotype [BISH]. E.Y. Hosaka 1159. 6 August 1933. O`ahu: Ko`olau Range, Waipi`o, Kipapa Gulch, wet windswept ridge.2800ft. Isotype(s) [BISH! [2]].
=Cyanea st.-johnii

*Verification: T.G. Lammers.

Rollandia st.-johnii Hosaka var. obtusisepala E. Wimm., in Engler, Pflanzenr. IV. 276b. (Heft 107): 762. 1953.
Type information:
Holotype [W]. O. Degener 19710. 27 June 1949. O`ahu: opposite Wiliwilinui Ridge overlooking Waimanalo. Isotype(s) [NY!].
=Cyanea st.-johnii

*Verification: T.G. Lammers.