Type Information
Metrosideros polymorpha Gaudich. , Voy. Uranie 482. 1830, pl. 109 1826.
Hawai`i, s.l.. Gaudichaud-Beaupré s.n..
Holotype [P].
Note: Gaudichaud had 4 unnamed vars. (a) is illustrated in pl. 108. Later authors have regarded this as the type. Some have assumed that type is a form with woolly pubescence, although for the species Gaudichaud says "sericeo-tomentosis."
*Verification: None.
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Metrosideros polymorpha Gaudich. subsp. glaberrima (H. Lév.) Skottsb., Acta Horti Gothob. 10: 148 1936.

*Verification: None.
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Metrosideros polymorpha Gaudich. subsp. glabrifolia (A. Heller) Skottsb., Acta Horti Gothob. 10: 148 1936.

*Verification: D.M. Mix.
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Metrosideros polymorpha Gaudich. subsp. imbricata (Rock) Skottsb., Acta Horti Gothob. 10: 147 1936.

*Verification: D.M. Mix.
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Metrosideros polymorpha Gaudich. subsp. incana (H. Lév.) Skottsb., Acta Horti Gothob. 10: 147 1936.

*Verification: D.M. Mix.
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Metrosideros polymorpha Gaudich. subsp. pumila (A. Heller) Skottsb., Acta Horti Gothob. 10: 148 1936.

*Verification: D.M. Mix.
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Metrosideros polymorpha Gaudich. var. dieteri J. W. Dawson & Stemmerm., in Wagner, Herbst & Sohmer, Bishop Mus. Occas. Pap. 29: 108 1989.
Kaua`i, Hanalei Dist., Kalalau Lookout, Koke`e National Park. 4 June 1983. Dawson s.n..
Holotype [BISH]. Isotype(s) [BISH!].

*Verification: Wagner, W.L., D.R. Herbst, & S.H. Sohmer. 1989. Man. Fl. Pl. Hawai`i. 988pp..
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Metrosideros polymorpha Gaudich. var. dieteri Skottsb., Acta Horti Gothob. 10: 147 1936.
Hawai`i, Hualalai. 25 September 1922. Skottsberg 654.
Syntype [BISH].

Note: Additional syntype: Hawai`i, Mauna Loa, 15 September 1922, Skottsberg 1139 (BISH!).
*Verification: None.
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Metrosideros polymorpha Gaudich. var. glaberrima (H. Lév.) H. St. John, Phytologia 42: 216 1979.

*Verification: R.K. Shannon.
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Metrosideros polymorpha Gaudich. var. macrostemon Skottsb., Acta Horti Gothob. 10: 147 1936.
Hawai`i, Kohala Mts. above Waimea, bog forest. 1200 m. 29 September 1922. Skottsberg 722.

Note: Nom. illegit., non Skottsberg 1936 (Acta Horti Gothob. 10: 147). Simultaneous homonym.
*Verification: None.
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Metrosideros polymorpha Gaudich. var. macrostemon Skottsb., Acta Horti Gothob. 10: 148 1936.
Hawai`i, Kohala Mts. above Waimea. 1200 m. 29 September 1922. Skottsberg 723.
Holotype [BISH].

Note: Nom. illegit., non Skottsberg 1936 (Acta Horti Gothob. 10: 147). Simultaneous homonym.
*Verification: None.
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Metrosideros polymorpha Gaudich. var. nuda Skottsb., Acta Horti Gothob. 10: 147 1936.
Hawai`i September 1922.

Note: Syntypes: Hualalai, NW slope, 25 September, Skottsberg 654; Mauna Loa, below the rest house, 15 September, Skottsberg 1139.
*Verification: None.
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Metrosideros polymorpha Gaudich. var. pseudorugosa Skottsb., Acta Horti Gothob. 10: 147 1936.
Maui, West Maui, Pu`u Kukui, summit bog. 9 October 1922. Skottsberg 742.

*Verification: None.
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Metrosideros polymorpha Gaudich. var. pumila (A. Heller) J. W. Dawson & Stemmerm., in Wagner, Herbst & Sohmer, Bishop Mus. Occas. Pap. 29: 108 1989.

*Verification: Wagner, W.L., D.R. Herbst, & S.H. Sohmer. 1989. Man. Fl. Pl. Hawai`i. 988pp..
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Metrosideros polymorpha Gaudich. var. subimbricata Skottsb., Acta Horti Gothob. 10: 147 1936.
O`ahu 1922.

Note: Syntypes: Koolau, Keeawaawa, 4 August, Skottsberg 49; Manoa pali, 27 August, Skottsberg 348; Nuuanu-Pauoa ridge, 5 November, Skottsberg 1068.
*Verification: None.
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Metrosideros polymorpha Gaudich. var. sericea (Rock) Skottsb., Acta Horti Gothob. 10: 148 1936.

*Verification: None.
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Metrosideros polymorpha Gaudich. f. sericea (Rock) O.Deg. & I. Deg., .

*Verification: None.
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Metrosideros polymorpha Gaudich. var. prostrata (Rock) Skottsb., Acta Horti Gothob. 15: 405 1944.


Note: Superfluous combination. St. John assumed he was assigning a new combination but he actually was only altering the classification. Published in Phytol. 42: 215-218. 1979.
*Verification: None.
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Metrosideros polymorpha Gaudich. var. glabrifolia (A. Heller) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. var. haleakalensis (Rock) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. var. hemilanata (Hochr.) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. var. imbricata (Rock) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. f. psilophylla Skottsb., .


Note: Superfluous combination. St. John assumed he was assigning a new combination but he actually was only altering the classification. Published in Phytol. 42: 215-218. 1979.
*Verification: None.
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Metrosideros polymorpha Gaudich. f. perglabra Skottsb., .

*Verification: None.
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Metrosideros polymorpha Gaudich. var. incana (H. Lév.) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. f. lurida (Rock) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. var. macrophylla (Rock) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. subsp. micrantha Skottsb., .

*Verification: None.
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Metrosideros polymorpha Gaudich. var. micrantha (Skottsb.) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. var. newellii (Rock) H. St. John, Phytologia 42: (215-218) 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. f. humilis Skottsb., .

*Verification: None.
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Metrosideros polymorpha Gaudich. f. pseudorugosa (Skottsb.) Skottsb, Acta Horti Gothob. 15: 404 1944.

*Verification: None.
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Metrosideros polymorpha Gaudich. f. strigosa (Rock) H. St. John, Phytologia 42: 215? 1979.

*Verification: None.
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Metrosideros polymorpha Gaudich. f. calva Skottsb., .

*Verification: None.
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Metrosideros polymorpha Gaudich. f. obovata Skottsb., .

*Verification: None.
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Metrosideros polymorpha Gaudich. var. parviflora Skottsb., .

*Verification: None.
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Metrosideros polymorpha Gaudich. var. tremuloides (A. Heller) Skottsb., Acta Horti Gothob. 15: 408 1944.

*Verification: None.
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