Glabrous tree, 10-25 m tall; stem to 40(-80) cm diam. Branchlets subterete, striate, dark red-brown in dry state. Petioles 4-7(-10) x 1-1.5 mm, deeply grooved; blades firmly chartaceous to subcoriaceous, dark reddish to olive-brown above, paler beneath, shiny on both surfaces though more obviously so above, ovate-elliptic to elliptic or oblong, 6-12(-15) x (2-)3.5-5(-6) cm, apex abruptly acuminate for 1-1.5 cm, tip obtuse and often curved, base broadly attenuate to rounded, subinequilateral, primary vein slightly raised above, strongly so beneath, secondary veins 6-8 pairs curved-ascending and subparallel to each other, looping before the edge, slightly raised above, more distinctly so beneath. Fascicles of (1-)8-15 flowers from axillary multibracteolate small cushions; pedicels slender to filiform, 3-5 mm long. Calyx cup-shaped, flattish, shortly 5-lobed, 1 mm long; petals oblong acuminate, hirsute only in the middle adaxially, 2 mm long; stamens 10, filaments 2 mm long; ovary adnate below to a thickish 10-sulcate disc. Drupe subglobular to broadly ellipsoid, 6-8 mm diam., shiny, dark green, becoming blue-green to purplish-blackish when dry; fruit-calyx green, suborbicular, spreading or finally reflexed, 15-20 mm diam. when expanded; peduncle 10-20 mm long.
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