Shorea acuminata Dyer

Large buttressed tree, to 50 m. Young parts densely buff pubescent, persistent on twig apices, midrib above, petioles, panicles, parts of perianth exposed in bud, ovary and calyx, caducous elsewhere; becoming sparse on fruit calyx and expanding stipules. Twigs c. 2 mm ø apically, terete, smooth, pale brown; stipule scars prominent, horizontal. Leaf buds small, conical, acute, generally hidden in the conspicuous, to 30 by 8 mm, oblong cordate obtuse lustrous concave subpersistent stipules. Leaves 6-12 by 2.6-6 cm, ovate-fal-cate, coriaceous, lustrous beneath; base subequal, obtuse to broadly cuneate; margin subrevolute; acumen to 1.8 cm long, slender; nerves 7-11 pairs, arched, ascending, slender but ± prominent beneath, frequently spaced irregularly along the midrib and with +-prominent short secondary nerves; tertiary nerves scalariform, obscure; midrib slender but prominent, terete, beneath, evident above; petiole 7-9 mm long, short. Panicles to 12 cm long, terminal or axillary, singly (if axillary) or doubly branched; branchlets to 2 cm long, bearing to 6 congested secund flowers; bracts as stipules, frequently subpersistent in terminal inflorescences. Flower bud to 4 by 2 mm, lanceolate; sepals broadly ovate, the 3 outer somewhat larger, acute, the 2 inner acuminate; petals dark wine red, paler towards base; stamens 15, in 3 unequal verticils; filaments lorate, tapering; anthers small, subglobose; appendages shorter than anthers, becoming reflexed on inner 2 verticils; ovary ovoid, tapering into a somewhat longer columnar tapering style. Fruit pedicel to 2 mm long, slender; 3 longer calyx lobes to 9 by 1.2 cm, narrowly spatulate, obtuse, c. 2 mm broad above the to 6 by 4 mm ovate thickened saccate base; 2 shorter lobes to 25 by 2 mm, linear, similar at base. Nut to 1.5 by 6 mm, lanceolate, prominently apiculate.

Common in mixed Dipterocarp forest, on undulating land and hills at elevations up to 400 metres.

Can be grown by seedlings. Seeds needs soaking.