Shorea kunstleri King

Large buttressed tree. Young parts shortly pale buff puberulent, +-caducous on twig, petiole and leaf, more dense and persistent on panicle, leaf bud and stipule outside (sparse within). Twig c. 2 mm ø at apices, much branched, ribbed at first, becoming terete, smooth or rugulose; stipule scars ± horizontal, c. 2 mm long, cuneate, cream-grey. Bud 5-7 by 2-2.5 mm, falcate. Stipule to 1.2 by 0.4 cm, narrowly lanceolate, acute, fugaceous. Leaves 8-12 by 4.5-7 cm, broadly ovate, coriaceous, frequently twisted to one side, normally glabrous (rarely pubescent); base obtuse or broadly cuneate; acumen to 1 cm long; nerves 6-8 pairs, slender, hardly raised beneath, curved, at c. 50°-60°, with or without minute axillary domatia; midrib applanate; tertiary nerves slender, scalariform, at 90° to midrib; petiole 2-3.5 cm long. Panicle to 15 cm long, terminal (rarely axillary), slender, slightly compressed on drying; regularly singly or doubly branched, the branchlets lax, bearing to 9 secund flowers; bracteoles to 5 by 3.5 mm, elliptic, obtuse, shortly densely pale greyish pubescent. Flower bud to 9 by 3 mm, narrowly ovoid-lanceolate, acute. 3 outer sepals longer, deltoid, acuminate; 2 inner ovate, acuminate. Corolla pale yellow, pink at base, shortly pubescent on parts exposed in bud; petals narrowly lanceolate, obtuse, twisted, slightly saccate. Stamens 15, the inner 5 only slightly longest; filaments expanded at base, narrowing abruptly distally; anthers broadly oblong; appendage to connective more than twice length of anther, the inner 5 reaching almost to style apex. Ovary and stylopodium pyriform, shortly pubescent; style filiform, glabrous but for the sparsely pubescent base, somewhat shorter than ovary. Fruit calyx entirely glabrous; 3 longer lobes to 8.5 by 1.8 cm, spatulate, narrowly obtuse, c. 5 mm broad above the c. 1.2 cm long and broad strongly saccate thickened base; 2 shorter lobes to 4 by 0.4 cm, unequal, linear, similarly saccate at base. Nut to 2 by 1.5 cm, ovoid, densely shortly buff pubescent; style remnant c. 3 mm long, conical.

An emergent tree in mixed dipterocarp forests, growing on infertile leached sandy clay soils on low hills and ridges, rarely to 800 metres; on ultrabasics in Sabah.

Can be grown by seedlings. Seeds needs soaking.