Clermontia gaudichaudii Hillebr. var. singuliflora Rock, Indig. trees Haw. Isl. 512. 1913.
Type information:
Holotype [BISH]. J. F. Rock 3252. June 1909. Hawai`i: [northern slope of Mauna Kea], Hamakua [upper forest of] Pa`auhau [No.] 1.1065 to 1220m. Isotype(s) [BISH!, GH!].
=Clermontia peleana subsp. singuliflora

*Verification: Lammers, T.G. 1991. Syst. Bot. Monogr. 32:1-97.