Shorea teysmanniana Dyer ex Brandis

Medium-sized buttressed tree. Young twig and petiole shortly densely evenly grey-brown caducous pubescent; outside of stipule and leaf bud persistently so. Twig c. 2 mm ø apically, slightly compressed when young, becoming terete, much branched, smooth; stipule scars prominent, cuneate, c. 2 mm long, 1 mm thick, pale, ± horizontal. Leaf bud 4-8 by 2-5 mm, compressed, ovoid, subacute. Stipule to 14 by 5 mm, ovate to oblong, tapering at base, subacute, fugaceous. Leaves 7.5-11 by 3.5-7 cm, ovate, entirely glabrous, lustrous, +-coriaceous; base obtuse; acumen to 8 mm long; nerves 8-11 pairs, slightly raised beneath, strongly curved, at c. 60°-70° at the base; with or without 1-3 pairs of small basal domatia; midrib narrow, depressed above, sharply prominent beneath. Petiole 1.2-1.8 cm long. Panicle to 8 cm long, terminal or axillary, terete, shortly buff pubescent; singly branched. Flower bud to 14 by 5 mm, ovoid. Calyx lobes deltoid, subequal, subacute, densely buff pubescent outside, glabrous within. Petals linear, sparsely pubescent on parts exposed in bud. Stamens 15, of 3 lengths; filaments tapering gradually; anther subglobose; appendage to connective short, becoming reflexed. Ovary and stylopodium narrowly conical, the former densely shortly cream pubescent, the latter more coarsely so; style c. 1/2 length of ovary and stylopodium, glabrous. Fruit calyx sparsely pubescent towards apex, more densely so towards base; 3 longer lobes to 8 by 1 cm, spatulate, obtuse, to 8 mm broad above the to 9 by 9 mm expanded saccate base; 2 shorter lobes to 3 by 0.5 cm, linear, similar at base. Nut to 12 by 8 mm, ovoid, densely shortly buff pubescent; style remnant to 2 mm long, short, acute.

An emergent tree that is very local but often frequent, growing in mixed peat swamp forest at elevations close to sea level.

Can be grown by seedlings. Seeds needs soaking.