Type Information
Plantago princeps Cham. & Schltdl. var. aquatilis Wawra, Flora 57: 565 1874.
Kaua`i, Hanalei and Hanapepe waterfalls. 1869- 1870. Wawra 2013a.
Holotype [W].
*Verification: None.
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Plantago princeps Cham. & Schltdl. var. denticulata Hillebr., Fl. Hawaiian Isl. 364 1888.

Syntype

Note: Syntypes: "Moloka`i! pali of Pelekunu...; pali of Waikolu."
*Verification: None.
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Plantago princeps Cham. & Schltdl. var. hirtella A. Gray, Proc. Amer. Acad. Arts 6: 54 1862.
Kaua`i, mts. [on tabular summit]. 1840. U. S. Expl. Exped. s.n..
Holotype [US]. Isotype(s) [GH].

*Verification: R.K. Shannon, W.L. Wagner.
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Plantago princeps Cham. & Schltdl. var. laxifolia A. Gray, Proc. Amer. Acad. Arts 6: 54 1862.
Hawai`i, [at N base of Mouna Kea, among stones at sea-side]. 1840. U. S. Expl. Exped. s.n..
Holotype [US]. Isotype(s) [GH].

*Verification: R.K. Shannon, W.L. Wagner.
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Plantago princeps Cham. & Schltdl. var. longibracteata H. Mann, Proc. Amer. Acad. Arts 7: 189 1867.
Kaua`i, Wai`oli Valley, Hanalei, on wet rocks. 1864- 1865. Mann and Brigham 612.
Holotype [GH].

*Verification: None.
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Plantago princeps Cham. & Schltdl. var. queleniana (Gaudich.) Rock, Amer. J. Bot. 7: 199 1920.

*Verification: D.M. Mix.
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Plantago princeps Cham. & Schltdl. , Linnaea 1: 167 1826.

*Verification: None.
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Plantago princeps Cham. & Schltdl. f. erecta Wawra, Flora 57: 565 1874.
Kaua`i, Hanalei and Hanapepe waterfalls. 1869- 1870. Wawra 2013b.
Holotype [W].

*Verification: None.
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Plantago princeps Cham. & Schltdl. var. acaulis Wawra, Flora 57: 564 1874.
O`ahu, above Pali, on clay location. 1869- 1870. Wawra 1728a.
Holotype [W].

*Verification: None.
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Plantago princeps Cham. & Schltdl. var. anomala Rock, Amer. J. Bot. 7: 203 1920.
Kaua`i, Hanapepe Valley, ridge opposite Gay and Robinson's Hanapepe Valley house. 23 July 1895. Heller 2610.
Holotype [GH]. Isotype(s) [A].

Note: Collection 2610, pro parte. Other collections distributed under Heller 2610 were made on the ridge west of Hanapepe River, 22 August (US!), and are not types as they were not cited in the protologue. Holotype not examined, but there is photo of it in Rock's publication. BISH fragment has no locality data or date.
*Verification: Wagner, W.L. & R.K. Shannon. 1999. Brittonia 51:422-438.
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Plantago princeps Cham. & Schltdl. var. elata Wawra, .

*Verification: None.
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