Metrosideros waialealae (Rock) Rock , Hawaii, Board Agric. Forest. Bot. Bull. 4: 43. 1917.
*Verification: None.

Type Information
Basionym: Metrosideros tremuloides (A. Heller) Knuth var. waialealae Rock, Indig. trees Haw. Isl. 335 1913.
Kaua`i, Mt. Wai`ale`ale. 5200 ft. 24 September 1909. Rock 5083.
Holotype [BISH]. Isotype(s) [BISH! [3], US!].
Note: All four sheets at BISH have labels in Rock's hand and numbered 5083; three of them also have field labels with printed numbers, one numbered 5084 and another numbered 5095.
*Verification: R.K. Shannon.