Gentianella cerina

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Gentianella cerina
Observed on Adams Island.
Naturally Uncommon
Naturally Uncommon (NZ TCS)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Gentianaceae
Genus: Gentianella
Species:
G. cerina
Binomial name
Gentianella cerina
Hook.f. T.N.Ho & S.W.Liu[2]
Synonyms[3]

Chionogentias cerina (Hook.f.) L.G.Adams
Gentiana campbellii Hombr. & Jacquinot ex Decne.
Gentiana cerina Hook.f.

Gentianella cerina, commonly known as Auckland Island gentian,[2] is a plant species in the Gentianaceae family, endemic to the Auckland Islands of New Zealand.[2][3]

Gentianella cerina illustration from the original description.

Gentianella cerina has a thick trunk (caudex) which may be unbranched or branched and of a height from 110–200 mm. There are 3–12 flowering stems per plant (1.1–3.1 mm in diameter) and these may be terminal or lateral. The lateral flowering stems spread horizontally with the ends growing upwards (i.e., they are decumbent). The leaves are elliptic, 36.6–53.1 by 8.4–12.6 mm) and are flat, with thickened margins. The leaf apex is rounded and the distinct petiole is 11–13 mm by 4.7–6.3 mm. Leaves on flowering stems are the same but smaller. There are 15 to more than 100 flowers per plant, which are 9.9–14.1 mm long. The calyx is 9.3–12.2 mm long and there are hairs at calyx–corolla fusion line. The corolla is 8.4–11.8 mm long, and white or tinted red to purple, with colourless or purple veins. The tube is 2.1–4.4 mm long and the lobes are 6.3–8.8 by 3.8–5.0 mm. The pollen is yellow and the stigma is purple or colourless. There are 13–37 ovules per ovary, and the capsule is 6.5–12 mm long. It flowers from December to April.[2]

Taxonomy

Conservation status

References

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