Classification
Class
Magnoliopsida Brongn.
Order
Malvales Juss. ex Bercht. & J.Presl
Family
Malvaceae
Genus
Plagianthus J.R.Forst. & G.Forst.
 Nomenclature
Scientific Name:
Plagianthus regius subsp. chathamicus (Cockayne) de Lange, New Zealand J. Bot. 46 (2008)
Synonymy:
  • ≡ Plagianthus chathamicus Cockayne, Trans. & Proc. New Zealand Inst. 34: 319 (1901 [1902])
  • ≡ Plagianthus betulinus var. chathamicus (Cockayne) Cockayne, Trans. & Proc. New Zealand Inst. 44: 43 (1912)
 Description

Plant not heteroblastic; lvs of young plants on petioles c. 2 cm. long; lamina 5–10 × 4–7 cm., very deeply irregularly crenate-serrate, ± 3-lobed, similar to that of adults; subfloral lvs ± ovate, c. 3 × 2 cm.; calyx sts up to 5 mm. long.

[From: Allan (1961) Flora of New Zealand. Volume 1 as Plagianthus betulinus var. chathamicus (Cockayne) Cockayne]

 Biostatus
Indigenous (Endemic)
 Bibliography
Cockayne, L. 1902: A short account of the plant-covering of Chatham Island. Transactions and Proceedings of the New Zealand Institute 34: 243–325.
Cockayne, L. 1912: Observations concerning evolution, derived from ecological studies in New Zealand. Transactions and Proceedings of the New Zealand Institute 44: 1–50.
de Lange, P.J. 2008: Plagianthus regius subsp. chathamicus (Malvaceae) - a new combination for the Chatham Islands endemic tree. New Zealand Journal of Botany 46: 381–386.
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Recovering]
de Lange, P.J.; Norton, D.A.; Heenan, P.B.; Courtney, S.P.; Molloy, B.P.J.; Ogle, C.C.; Rance, B.D. 2004: Threatened and uncommon plants of New Zealand. New Zealand Journal of Botany 42(1): 45–76. [as Plagianthus chathamicus Cockayne]
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Recovering]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Recovering]