Small tree up to 8 m high. Branchlets glabrous. Leaves in whorls of 4 (rarely of 3); petiole 10-26(-35) mm long, many minute or shortly lingulate colleters densely packed together in the axils; blade thinly coriaceous when dried, elliptic, narrowly elliptic or narrowly obovate, 6.5-20 by 2-5.5 cm, (2.7-)3-4.4 times as long as wide, apex acuminate, acumen up to 1 cm long, base acute, glabrous on both sides; 13-17 pairs of secondary veins, slightly curved near margin, forming an angle of 60-80° with the midrib, 4-11(-16) mm from each other, sometimes alternating with less conspicuous interstitial veins; tertiary venation inconspicuous, rarely conspicuous beneath. Inflorescence 4-11 cm long, many-flowered; pedicels 1-3.5 mm long, pubescent. Bracts and bracteoles sepal-or scale-like, ovate or narrowly ovate, up to 2.5 mm long, pubescent except at the base inside. Flowers fragrant. Sepals pale green, grey-green or brown when dried, connate at the base for (0.7-)1-1.6 mm, ovate, 2.5-3.2(-3.7) by 1.2-2.5 mm, obtuse or rounded and with a thick margin, densely pubescent except on the fused part inside, erect or slightly spreading (sometimes reflexed). Corolla lobes dextrorse; white, (5-)6-8 mm long in the mature bud and forming an ovoid head, 2.5-4 by 1.2-1.7 mm, glabrous or very sparsely and shortly hairy around the apex outside, dark brown or blackish when dried; tube almost cylindrical, 3.8-5 by 1.3-2 mm; lobes ovate, sometimes slightly oblique, 3.5-5.8 by 1.7-3 mm, 1.7-2.8 times as long as wide, pilose at the base inside, ciliate or not, auriculate at the base on the right side. Stamens inserted at 2.3-3.2 mm from the base; anthers ovate, 1-1.2 by 0.3-0.4 mm, pointed. Pistil 2.6-3.2 mm long, glabrous; ovary ovoid or broadly ovoid, 0.9-1.3 by 0.7-1 mm, of 2 carpels, with a disk-like thickening at the base 0.2-0.4(-0.5) mm high; style 1.1-1.9 mm long; style head 0.5-0.6 mm high, with a cleft stigmoid apical part up to 0.1 mm high. Fruit 16-21(-24?) cm by c. 3 mm, glabrous, with narrow and acutish apex, blackish when dried. Seeds narrowly elliptic, 5.5-7 by 1.5-1.7 mm, dark brown, pubescent on both sides, one end rounded, the other end acuminate, which is bifid at the apex up to 1 mm long; longest cilia 4-6 mm long, gradually becoming shorter towards the side margins.
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