Flora of the Hawaiian Islands --Basionym Type Information
Note: No specimens cited under this name in the publication. Fosberg annotated in 1939 a collection (O`ahu: Ko`olau Range, Ko`olauloa Mts., between Punalue`u and Kaipapau, 308 May 1909, C. N. Forbes & C. M. Cooke s.n. (BISH! ) as the type of H. schlechtendahliana subsp. rockii; however, he included this collection in those cited for H. schlechtendahliana var. nitens.