Cyanea sessilifolia
Genus: Cyanea
Range: O'ahu; northern Ko'olau range.
Growth form: Treelet, 1-3m tall.
This species is closely related to Cyanea longiflora. Lammers (1998) lists a few morphological traits to separate the two species (distinct petiole, hypanthium shape, anther morphology), but also Cy. sessilifolia are endemic to the northern Ko'olau whereas Cy. longiflora are found everywhere else. The collections by Hillebrand were in the Wai'anae and the southern Ko'olau, thus these are Cy. longiflora. The species examined by Rock included a collection by Hitchcock in the central Ko'olau (Schofield barracks) and his own collection in the Makaleha valley (Wai'anae). Thus these also are all Cy. longiflora. Thus the first collection was done by Degener, Hiraii and Park in 1931 between Pupukea and Kahuku in the northern Ko'olau range.
How to identify:
Images:
Sources:
- Degener, 1932 (as Rollandia sessilifolia);
- Wimmer, 1943 (as Rollandia sessilifolia);
- Wimmer, 1968 (as Rollandia sessilifolia);
- Wagner et al., 1990 (as part of Rollandia longiflora);
- Lammers, 1998a.