Phyllostegia ambigua (A. Gray) Hillebr. , Fl. Hawaiian Isl. 350. 1888.
*Verification: Wagner, W.L. 1999. Novon 9:265-279.

Type Information
Basionym: Phyllostegia brevidens A. Gray , Proc. Amer. Acad. Arts 5: 343 1862 [Jan].
Hawai`i, [in the forest] on Mouna [Mauna] Kea. 3000 ft. 1840. U. S. Expl. Exped. s.n..
Holotype [US]. Isotype(s) [GH].
*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var. degeneri Sherff, Amer. J. Bot. 28: 28 1941.
Maui, [East Maui], Haleakala, NW side of Ko`olau Gap, in fogswept jungle. 6000 ft. 20 August 1939. Degener et al. 12464.
Holotype [F]. Isotype(s) [BISH!, NY [mfc!]].

*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var. expansa Sherff, Bot. Gaz. (Crawfordsville) 96: 139 1934.
Maui, West Maui, [Pu`u Kukui] Mt. Eke. 1851- 1871. Hillebrand s.n..
Holotype [B].

*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var. heterodoxa Sherff, Amer. J. Bot. 21: 700 1934.
Hawai`i, Ka`u, Na`alehu, along Hilea Trail. 1600 to 3000 ft. 15 January 1912. Rock 10014.
Holotype [BISH]. Isotype(s) [F, BISH! [2]].

Note: Locality and date from field notes.
*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var. hirsutula (Hillebr.) Sherff, Amer. J. Bot. 21: 699 1934.

*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var. longipes (Hillebr.) Sherff, Amer. J. Bot. 21: 699 1934.

*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var. pauciflora Sherff, Bot. Gaz. (Crawfordsville) 96: 139 1934.
Maui, South Haleakala. 1851- 1871. Hillebrand s.n..
Holotype [B].

*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var. pubescens Sherff, Bot. Gaz. (Crawfordsville) 96: 138 1934.
Maui, Upper Kula. s.d.. Lydgate s.n..
Holotype [B].

*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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Basionym: Phyllostegia brevidens A. Gray var.? ambigua A. Gray, Proc. Amer. Acad. Arts 5: 343 1862 [Jan].
Maui, West Maui. 1840. U. S. Expl. Exped. s.n..
Holotype [US]. Isotype(s) [GH].

*Verification: Wagner, W.L. 1999. Novon 9:265-279.
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