思茅蒲桃 si mao pu tao

Shrubs or trees, 4-8 m tall. Branchlets grayish brown when dry, ridged; old branches brown, terete. Petiole 3-5 mm; leaf blade elliptic to narrowly elliptic, 4-10 × 1.7-4 cm, leathery, abaxially dark brown when dry, adaxially blackish brown and not glossy when dry, abaxially with numerous raised glands, adaxially with numerous small impressed glands, secondary veins numerous, 2-3.5 mm apart, at an angle of ca. 70° from midvein, abaxially slightly raised, and adaxially inconspicuous, intramarginal veins ca. 1 mm from margin, base cuneate, apex acuminate and sometimes sharply pointed or with an obtuse cusp. Inflorescences terminal or subterminal, paniculate cymes, ca. 1.5 cm, 3-9-flowered; peduncle 2-5 mm. Flower buds obovoid, ca. 3.5 mm. Hypanthium inconspicuous. Petals distinct, ca. 3 mm. Stamens ca. 4 mm. Fruit purple when ripe, ellipsoid-ovoid, 1-1.5 × 0.8-1 cm. Seed 1 per fruit; embryos numerous. Fl. Jul-Aug, fr. Sep-Dec.

Sparse or dense forests, mountain slopes or summits; 500-1600 m. Guangxi, S Yunnan [Vietnam].