Reissantia arborea

Reissantia arborea (Roxb.) Hara, J. Jap. Bot. 40: 327 (1965) (syn: Hippocratea arborea Roxb. ; Hippocratea disperma Wall. ; Pristimera arborea (Roxb.) A.C.Sm.);
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Central Himalaya to China (S. Yunnan, SW. Guangxi) and Myanmar: Assam, China South-Central, China Southeast, East Himalaya, Myanmar, Nepal as per POWO;
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Nepal, Bhutan, India (Darjeeling, Assam, Uttar Pradesh, Bihar, Arunachal Pradesh, Tripura, Meghalaya), N-Burma (Kachin), China (Guangxi, Yunnan) as per Catalogue of Life;

Trees, up to 15 m tall, evergreen. Leaves simple, opposite, decussate; petiole ca. 1-1.5 cm long; lamina ca. 6-19 x 2.5-8 cm, elliptic-obovate or elliptic-oblong, attenuate at base, acuminate at apex, entire, membranous, glabrous; secondary nerves 5-8 pairs, prominent on both surfaces. Inflorescences in axillary or supra-axillary, corymbose or umbellate cymes, ca. 1-1.5 cm long; peduncles ca. 0.3-0.6 cm long; pedicels very short; Flowers ca. 0.3-0.5 cm across, greenish-white or purplish-green; sepals ca. 0.15 x 0.1 cm suborbicular; petals ca. 0.2 cm long, elliptic or oblong, concave, imbricate; filaments ca. 0.1 cm long, subulate; anthers oblong; ovary longer than stamens, 2-loculed; style very short. Capsules ca. 1.2-1.5 x 0.5-1 cm, ellipsoid-oblong, smooth, 2-valved, 1-celled. Seeds solitary, ca. 1-1.2 x 0.7-0.8 cm, ellipsoid, stipitate, scarlet red.
In subtropical forests, 800-1200 m.
(Attributions: French Institute of Pondicherry as per India Biodiversity Portal)
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SK 3846 01 September 2023: 8 high res. images.