Details
Evergreen trees, up to 20 m tall. Trunks buttressed at base, branchlets terete, light to dark brown, glabrous. Leaves alternate or spiral, entire, coriaceous, midrib and nerves with very fine parallel secondary veins, prominent on both sides; petioles long, terete or slightly furrowed above, geniculate at the upper end underneath; stipules caducous, convolute, ovate or lanceolate, membranous, finely lengthwise veined, leaving large scars. Inflorescence cymose, paniculate, or racemose, solitary or paired, axillary or pseudo-terminal; pedicels with an articulation; bracts small, caducous. Flowers bisexual, 5-merous, or rarely 4-merous, whitish to greenish, fragrant. Calyx deeply lobed, lobes imbricate, sometimes valvate. Petals contorted. Stamens inserted on the disk, anthers longitudinally dehiscent, introrse, latrorse, basifixed, obtuse, shortly apiculate. Disk fleshy, cupular to plate-form, intrastaminal, subentire or 5-lobed, glabrous, puberulous. Ovary free, glabrous or usually with a tuft of hairs at the top, 2-celled; styles 2, filiform, free or slightly united at the base; stigma small, ovules 2 in each cell, anatropous. Capsule simple fusiform or 2-lobed, longitudinally dehiscing by 2 valves, mostly 1-2 seeded. Seeds oblong, completely or partly covered by the fleshy aril.