Straussia oncocarpa Hillebr. , Fl. Hawaiian Isl. 180. 1888.
Type information:
Lectotype [BISH]. W. Hillebrand s.n.. 1851- 1871. Maui: East Maui, `Ulupalakua.
Lectotypified in Sohmer. Lyonia 1: 171. 1977.

Note: The holotype was at B and presumably was destroyed; a photo and a fragment of the holotype are at BISH, and Sohmer designated the fragment as the lectotype. Sohmer (p. 175) mistakenly cited HAW sheet number 12857 as Hillebrand's collection number. Non Psychotria onocarpa K. Schum.

=Psychotria mauiensis
Note: The holotype was at B and presumably was destroyed; a photo and a fragment of the holotype are at BISH, and Sohmer designated the fragment as the lectotype. Sohmer (p. 175) mistakenly cited HAW sheet number 12857 as Hillebrand's collection number. Non Psychotria onocarpa K. Schum.

*Verification: Sohmer, S.H. 1977. Lyonia 1:103-186.

Straussia oncocarpa Hillebr. var. scoriacea Rock, Indig. trees Haw. Isl. 449. 1913.
Type information:
Holotype [BISH]. J. F. Rock 10201. July 1911. Hawai`i: S slope of Mauna Loa, Ka`u, Manuka. Isotype(s) [BISH, GH].
=Psychotria hawaiiensis var. scoriacea

*Verification: Sohmer, S.H. 1977. Lyonia 1:103-186.

Straussia oncocarpa Hillebr. var. subcordata Rock, Indig. trees Haw. Isl. 448. 1913.
Type information:
Holotype [BISH]. J. F. Rock 7072. April 1910. Moloka`i: Wailau pali.4000ft. Isotype(s) [BISH!, GH!].
=Psychotria mauiensis

*Verification: Sohmer, S.H. 1977. Lyonia 1:103-186.