Hopea ferrea Lanessan

Small, occasionally stout and large, shaggy-barked trees, often twisted and gnarled. Panicle and outside of petals and sepals densely buff puberulent, otherwise glabrous. Twig c. 1 mm ø, slender, slightly zig-zag, drying dark brown, minutely rugulose; stipule scars obscure. Leaf bud minute; stipules fugaceous. Leaves 4-10 by 2-5.5 cm, ovate; base ± broadly cuneate or rarely obtuse; acumen to 2 cm long, slender; nerves (6-)8(-9) pairs, arched, slender but distinctly raised beneath, evident above as also the midrib, frequently with minute glabrous axillary domatia; tertiary nerves densely scalariform, slender, evident beneath, obscure above; petiole 9-13 mm long, slender. Panicle to 8 cm long, slender, with to 3 cm long branchlets bearing many (to 12) secund cream flowers. Flower bud to 3 by 2 mm, small, ovoid. Sepals broadly ovate, subacu-minate, subequal. Stamens 15, the filaments lorate but becoming filiform beneath the subglobose anthers; appendages somewhat shorter than anther. Ovary and stylopodium pyriform, glabrous; style short, obscure. Fruit pedicel to 2 by 1 mm, broadening into receptacle. 2 longer calyx lobes to 4 by 1 cm, broadly spatulate, obtuse, c. 2 mm broad above the to 3 by 1 mm minute thickened saccate base; 3 shorter lobes to 5 by 1 mm, lanceolate-acicular, thickened, saccate. Nut to 13 by 4 mm, cylindrical, tapering abruptly to a terminal apiculus.

Mostly found on limestone. A canopy tree in evergreen and semi-evergreen forests of the lowlands, occasionally by streams, sometimes as the dominant species; also common in rocky limestone formations in dry evergreen forest.

Can be grown by seedlings.