天蓝谷木 tian lan gu mu

Memecylon cyanocarpum C. Y. Wu (1979), not Gilg (1901); M. floribundum Blume.

Shrubs or trees, 3-6(-12) m tall, few- to many-branched. Stems terete, glabrous. Petiole 5-10 mm; leaf blade oblong to elliptic, 8-11(-16) × 3.8-6(-7.5) cm, leathery, both surfaces glabrous, base cuneate, obtuse, or subround, margin entire, apex acute, obtuse, or retuse. Inflorescences axillary, clustered or shortly cymose, 1.5-3 cm; peduncle 5-12 mm; bracts ca. 0.5 mm, caducous. Pedicel 2-5 mm, glabrous. Hypanthium shallowly cup-shaped, 1.5-3 mm, glabrous. Calyx lobes 4, repand. Petals white or yellowish green but base pale blue, broadly ovate, ca. 2 mm, apex acute. Stamens blue, ca. 2.5 mm; anthers and conic connective 1-1.5 mm, with a small concave abaxial gland. Ovary cup-shaped to ovoid. Fruit pink to dark red and maturing purple to black, obovoid, 1-1.5 cm in diam., smooth and glabrous; exocarp succulent, juicy. Fl. Apr-Aug, fr. Dec-Jan.

Sparse to dense forests; 900-1200 m. Hainan, SE Xizang, Yunnan [Cambodia, Indonesia, Vietnam].