Classification
Class
Magnoliopsida Brongn.
Order
Asparagales Link
Family
Orchidaceae Juss.
Genus
Corybas Salisb.
 Nomenclature
Scientific Name:
Corybas trilobus (Hook.f.) Rchb.f. (1871)
Synonymy:
  • ≡ Nematoceras trilobum Hook.f., Bot. Antarct. Voy. II. (Fl. Nov.-Zel.) Part I, 250 (1853) – as triloba
  • ≡ Corysanthes triloba (Hook.f.) Hook.f., Handb. New Zealand Fl. 265 (1864)
 Description

Plant at fl. c. 2–5 cm. tall. Green lf distinctly petiolate; lamina c. 1–2.5 cm. diam., reniform to orbicular, often wider than long and with small median apiculate lobe, base broadly cordate, texture hardly fleshy. Floral bract rarely as long as ovary. Dorsal sepal short, spathulate, obtuse and concave to cucullate at broad tip, arched over top of labellum; lateral sepals long, filiform, greatly exceeding labellum. Petals similar to lateral sepals but us. much shorter. Labellum auriculate at base, lamina very abruptly deflexed, broad and rounded, margin finely denticulate and often incurled except at its lower edge, inner surface retrorsely papillose.

[From: Moore and Edgar (1970) Flora of New Zealand. Volume 2 as Corybas trilobus (Hook.f.) Rchb.f.]

 Biostatus
Indigenous (Endemic)
 Bibliography
de Lange, P.J. 2002: New genera, reinstatements and combinations for New Zealand Orchidaceae (Tribe Diurideae). New Zealand Botanical Society Newsletter 68: 14–18.
de Lange, P.J.; Gosden, J.; Courtney, S.P.; Fergus, A.J.; Barkla, J.W.; Beadel, S.M.; Champion, P.D., Hindmarsh-Walls, R.; Makan, T.; Michel, P. 2024: Conservation status of vascular plants in Aotearoa New Zealand, 2023. New Zealand Threat Classification Series. No. 43. [Not threatened]
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. [Not Threatened]
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. [Not Threatened]
Hooker, J.D. 1852–1853 ("1853"): The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross. II. Flora Novae-Zelandiae. Part I. Flowering plants. Lovell Reeve, London.
Hooker, J.D. 1864: Handbook of the New Zealand Flora: a systematic description of the native plants of New Zealand and the Chatham, Kermadec's, Lord Auckland's, Campbell's and Macquarie's Islands. Part I. Reeve, London.
Lehnebach, C.A. 2016: New combinations and a replacement name for three New Zealand spider orchids (Corybas). The New Zealand Native Orchid Journal 139: 4–5.
Lehnebach, C.A.; Zeller, A.J.; Frericks, J.; Ritchie, P. 2016: Five new species of Corybas (Diurideae, Orchidaceae) endemic to New Zealand and phylogeny of the Nematoceras clade. Phytotaxa 270(1): 1–24.