Type Information
Bidens micrantha Gaudich. , Voy. Freycinet Bot. 464, pl. 85 1826.
O`ahu, s.l.. 1817- 1820. Gaudichaud-Beaupré 71.
Holotype [P]. Isotype(s) [G-DEL!].
Note: The type must have come from Maui. It is in very poor shape but definitely has curved, awnless achenes. For discussion of date of publ. see St. John (Taxon 34: 663-5. 1985).
*Verification: None.
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Bidens micrantha Gaudich. subsp. ctenophylla (Sherff) Nagata & Ganders, Lyonia 2: 11 1983.

*Verification: D.M. Mix.
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Bidens micrantha Gaudich. subsp. kalealaha Nagata & Ganders, Lyonia 2: 6 1983.
Maui, East Maui, Kahikinui, on sheer cliff in Manawainui Gulch out of the reach of goats. 1920 m. 18 December 1980. Hobdy 959.
Holotype [BISH].

*Verification: None.
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Bidens micrantha Gaudich. var. caduca (Sherff) Sherff, Amer. J. Bot. 22: 705 1935.

*Verification: R.K. Shannon.
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Bidens micrantha Gaudich. var. heterophylla (A. Gray) Sherff, Brittonia 6: 339 1948.

*Verification: D.M. Mix.
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Bidens micrantha Gaudich. var. kaalana Sherff, Bot. Gaz. (Crawfordsville) 85: 8 1928.
O`ahu, Wai`anae Range. Hillebrand s.n..
Holotype [B].

Note: Holotype presumably destroyed. Photo of holotype, negative no. 2512, at F seen.
*Verification: None.
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Bidens micrantha Gaudich. var. laciniata (Hillebr.) Sherff, Bot. Gaz. (Crawfordsville) 85: 8 1928.

*Verification: D.M. Mix.
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Bidens micrantha Gaudich. var. rudimentifera Sherff, Bot. Leafl. 3: 7 1951.
Maui, East Maui, Kahua Crater, south Haleakala. 2135 m. 24 November 1950. Hatheway and Greenwell 465.
Holotype [F].

*Verification: None.
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