Shrub or small tree, up to 8 m. Leaves usually at the branch ends, obovate, obovate-oblong, or elliptic-oblong, 4-8 by 1½-4½ cm, shining above, rather dull beneath, thinly coriaceous, acuminate to abruptly acute, rarely rounded, base cuneate, margin entire or rarely crenulate; nerves 7-10 pairs; petiole c. 5 mm. Stipules 5-7 mm long. Inflorescences cymose, once or twice branched, 2.5-5 cm peduncled. Flowers green, yellowish-green, or white; pedicels up to 7 mm, sometimes the central flower of the ultimate cyme sessile. Calyx lobes 5, deltoid, acuminate, 2-3 mm long. Petals suborbicular, 2 mm diam., shortly unguicu-late. Disk fleshy, slightly crenulate. Stamens 1.5-2 mm; filament subulate; anthers slightly apiculate. Ovary campanulate, 3-5 mm long, 5-celled, each cell with 2 ovules; style 2.5 mm; stigma capitate, slightly 5-grooved. Fruits slightly obovoid, 4-5 by 3 mm. Seed oblong-ovoid, areolate, corrugate, 3 by 1.5 mm; embryo straight.
This species has rather seldom been collected and as far as these specimens go they show a rather remarkable vertical distribution, having been found in the Malay Peninsula at low altitude (c. 200-300 m) with rather thin, narrow leaves (once noted on a quartzite ridge) and further at much higher altitude (c. 1400-1700 m) with coriaceous, more blunt, and broader leaves. The Sumatra collection was made between 1500 and 1800 m and approaches the type of leaf as found in the Malayan mountains.
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