Trematolobelia grandifolia (Rock) O. Deg. - Large-flower false lobelia.  Synonymy:   Trematolobelia wimmeri O.& I. Deg.
Trematolobelia kauaiensis (Rock) Skottsberg - Kauai false lobelia. 
Trematolobelia macrostachys (Hook. & Arn.) Zahlbr. - Koli'i.  Synonymy:   Trematolobelia macrostachys var. haleakalaensis St. John
Trematolobelia singularis St. John - Lava-slope false lobelia.  Listed by the U.S. FWS as endangered. The FWS range of distribution is: U.S.A. (HI). FWS Listing information: volume 61 Federal Register 53107; October 10, 1996.