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FOC | Family List | FOC Vol. 16 | Gentianaceae | Gentiana

3. Gentiana decorata Diels, Notes Roy. Bot. Gard. Edinburgh. 5: 220. 1912.

美龙胆 mei long dan

Gentiana tsarongensis I. B. Balfour & Forrest.

Perennials 2-5 cm tall. Taproot cylindric, 5-10 cm × ca. 5 mm. Stems perennial, many, prostrate to ascending, slender, simple. Basal rosette leaves absent or very small; leaf blade triangular, less than 5 mm. Stem leaves many, crowded to widely spaced, withering toward stem base; petiole 3-5 mm; leaf blade spatulate, elliptic, ovate, or obovate, 3-8 × 2-3 mm, base obtuse, margin cartilaginous and smooth, apex acute to obtuse, veins 1-3. Flowers terminal, solitary. Pedicel 2-4 mm, slender. Calyx shallowly cupular, tube 3-4 mm; lobes slightly spreading, elliptic to ovate, 2-5 mm, unequal, margin cartilaginous and smooth, apex acute to obtuse. Corolla dark blue to blue-purple, tubular to tubular-campanulate, 1.5-1.8(-2) cm; lobes elliptic, 7-11 mm, apex obtuse; plicae triangular, 1-2 mm. Stamens inserted at basal part of corolla tube; filaments 6-8(-10) mm; anthers 1.5-2 mm. Style 1.5-2 mm; stigma lobes linear. Capsules sessile, ellipsoid, 1.4-1.6 cm. Seeds dark brown, ellipsoid to ovoid, 0.6-1 mm. Fl. and fr. Aug-Nov.

Meadows along streams and on slopes; 3200-4600 m. SE Xizang, NW and W Yunnan [NE Myanmar].


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