Gentianella calcis Glenny & Molloy subsp. calcis

Plants in flower 140–200 mm tall. Flowering stems 1–5 per plant; largest flowering stems c. 1.8 mm diam. at base, 1.2–1.6 mm diam. when dry, purple-black; flowering stem leaves 4 pairs per stem, lowest pedicels from near apex of flowering stem. Rosette leaves linear, 68–83 mm long, 2.6–4.1 mm wide, green, V-shaped; apex acute, recurved; margins minutely denticulate or smooth; petiole not distinct, leaf 1.1–1.6 mm wide at leaf base. Flowering stem leaves linear, slightly recurved. Pedicels 3.5–14 mm long, 0.8–1.0 mm diam., 0.5–0.6 mm diam. when dry. Flowers 9–28(–78) per plant, 15–18 mm long. Calyx 7.5–14.1 mm long, green tinted purple-black; lobes 4.6–10.2 mm long, 1.9–2.5 mm wide at base, plane to somewhat recurved. Corolla 13.5–17.1 mm long, veins colourless; tube 3.4–5.1 mm long; lobes 10.0–12.3 mm long, 6.2–9.0 mm wide, margins toothed, hairs below sinus absent or rarely present and then straight; nectary 0.9–1.6 mm from corolla base, V-shaped to pocket-like, fl ap margin smooth. Filaments 6.5–8.6 mm long from corolla base, 0.6–0.9 mm wide. Anthers 1.9–3.1 mm long, extrorse at anthesis. Ovules (9–)14–35 per ovary. Ovary becoming violet after flowering. Capsule 13.0–17.5 mm long.

[Reproduced from Glenny (2004, New Zealand J. Bot. 42: 361-530) with permission from The Royal Society of New Zealand.]