Class
Family
Genus
Classification
Nomenclature
Scientific Name:
Gentianella chathamica (Cheeseman) T.N.Ho & S.W.Liu, 23: 62 (1993) subsp. chathamica
Description
Plants in flower 90–235 mm high. Root 1.0–3.3 mm diam. at stem base. Flowering stems terminal 1–3(–15) per plant, largest flowering stem 2.1–2.3 mm diam. at base, 0.9–3.4 mm diam. when dry, flowering stem leaves 1–3 pairs per stem. Rosette leaves ovate, 21–31 mm long, 7.0–11.5(–22) mm wide; petiole distinct, c. 9.5 mm long, 0.6– 3.0 mm wide. Pedicels 1 per axil, 5–20 mm long, 0.5–0.8 mm diam., 0.37–0.46 mm diam. when dry. Flowers 5–50 per plant, 6–12 mm long. Calyx 4.6– 7.5 mm long, hairs at calyx–corolla fusion line present; lobes 4.7–5.7 mm long, 1.5–2.2(–2.5) mm wide at base, apices acute or obtuse, margins smooth, sinus hairs absent or sparse. Corolla (5.1– )7.5–11.8 mm long, white, with crimson tinting, and/or with veins coloured crimson; tube 2.5– 3.2 mm long; lobes 5.0–8.6 mm long, 2.7–5.2 mm wide, hairs below sinus present; nectary 0.9–1.2 mm from corolla base. Filaments (2.3–)3.9–6.6 mm long from corolla base, 0.4–0.7 mm wide. Anthers 0.5– 1.4 mm long, anther wall purple-red, mouth yellow or orange-red, introrse or extrorse at anthesis, pollen pale orange. Stigma colourless. Ovules 22–60 per ovary. Capsule 6.7–12.5 mm long. FL (Aug–)Sep– Feb.
[Reproduced from Glenny (2004, New Zealand J. Bot. 42: 361-530) with permission from The Royal Society of New Zealand.]
Biostatus
Indigenous (Endemic)
Bibliography
Adams, L.G. 1995: Chionogentias (Gentianaceae) a new generic name for the Australasian 'snow-gentians' and a revision of the Australian species. Australian Systematic Botany 8: 935–1011.
Cheeseman, T.F. 1906: Manual of the New Zealand Flora. Government Printer, Wellington.
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. [Naturally uncommon]
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. [Naturally Uncommon]
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. [Naturally Uncommon]
Glenny, D. 2004: A revision of the genus Gentianella in New Zealand. New Zealand Journal of Botany 42(3): 361–530.
Ho, T.N.; Liu, W. 1993: New combinations, names and taxonomic notes on Gentianella (Gentianaceae) from South America and New Zealand. Bull. Nat. Hist.Mus.Lond.(Bot.) 23: 61–65.
