Pittosporum insigne Hillebr. , Fl. Hawaiian Isl. 25. 1888.
Type information:
Holotype
[B]. W. Hillebrand s.n.. August 1870. Maui: West Maui, Mt. Eeka [`Eke].4000 to 6000ft. Isotype(s)
[GH [photo BISH!, F?], K].
Pittosporum insigne Hillebr. f. pertinax O. Deg. & Sherff, in Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 414. 1941.
Type information:
Holotype
[F]. O. Degener 10959. 15 April 1928. Moloka`i: ravine just S of Maunahui, in forest. Isotype(s)
[MO!, NY [2, mfc!], US].
=Pittosporum argentifolium
Pittosporum insigne Hillebr. var. fosbergii Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 413. 1941.
Type information:
Holotype
[BISH]. H. St. John , R.J. Baker and J.W. Coulter, F.R. Fosberg, & T. G. Yuncker 12604. 25 December 1932. Moloka`i: Kawela, Waikolu Valley, ridge between Hanalilolilo and Pepe`opae, on steep pali in rain forest. Isotype(s)
[F, US].
=Pittosporum glabrum
Pittosporum insigne Hillebr. var. hillebrandii (H. Lév.) Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 415. 1941.
Pittosporum insigne Hillebr. var. lydgatei Sherff, Amer. J. Bot. 28: 19. 1941.
Type information:
Holotype
[B]. J. M. Lydgate s.n.. s.d.. Maui: East Maui, Hamakua. Isotype(s)
[BISH! [3]].
Pittosporum insigne Hillebr. var. micranthum Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 415. 1941.
Type information:
Holotype
[BISH]. C.N. Forbes 1800.M. 1 March 1920. Maui: East Maui, Kanaio, on S slope of Haleakala. Isotype(s)
[B, BISH! [2], F, K].
=Pittosporum glabrum
Pittosporum insigne Hillebr. var. pelekunuanum Sherff, Field Mus. Nat. Hist., Bot. Ser. 22: 416. 1941.
Type information:
Holotype
[BISH]. C.N. Forbes 586.Mo. September 1912. Moloka`i: Pelekunu Valley. Isotype(s)
[BISH!].
=Pittosporum glabrum