Lithocarpus sundaicus Rehder

Tree 10-36 m, 20-90 cm ø; bark grey-brown, fissured to scaly. Branchlets initially densely yellowish brown to fulvous tomentose by adpressed stellate hairs and woolly or erect tuft-hairs, later subglabrous, dark greyish brown, with numerous minute lenticels; terminal buds ovoid, 3-5 by 2-3 mm, scales narrowly ovate. Stipules narrowly ovate to linear, 5-10 by 2-3 mm. Leaves coriaceous (10-)12-16(-24) by (4-)5-6(-10) cm (index (2-) 2½-(-3)), broadest at or below the middle; surfaces discolorous, above greyish brown to dark chocolate-brown, initially with some woolly or erect tuft-hairs especially on the midrib and nerves, soon glabrescent, beneath densely yellowish brown to fulvous tomentose by adpressed stellate hairs interspersed with woolly or erect tuft-hairs; base rounded-acute, rarely acute, top acute to ½-2 cm acuminate, tip blunt or sharp; midrib strongly prominent on both sides; nerves (10-)12-14(-16) pairs, prominent beneath, flat above, subparallel, at an angle of 45-60°, arcuating but not anastomosing towards the margin; reticulation fine, lax, scalariform, obscure to distinct beneath; petiole 5-12 mm, 1½-3 mm ø, initially densely stellate hairy, glabrescent, adaxially flat or furrowed. Inflorescence male, androgynous or mixed, in dense, subterminal paniculate clusters, densely yellowish brown to fulvous stellate hairy; bracts and bracteoles narrowly ovate-acute, 1-1½ by ½-⅔ mm. Male rachis 10-15 cm, 1-1½ mm ø; ♂ flowers in clusters of 3, stamens 10-12, filaments 2½-3 mm, anthers 0.25-0.3 mm long, pistillode globose, 1 mm ø. Androgynous or mixed rachis 10-15 cm, 1½-2 mm ø; female flowers solitary or rarely in clusters of 2-3, staminodes rudimentary, styles 3-4, terete, 1-2 mm, recurved. Ripe cupule sessile to ½-1 cm stalked, saucer-shaped, 3-6 mm long, (2-)2½(-3) cm ø; rim thin, covering the basal part of the fruit; wall woody, thin, inside densely fulvous-tomentose by adpressed, simple hairs, outside densely fulvous stellate hairy; scales adpressed, ovate, imbricate but concentrically set. Ripe fruit depressed-ovoid, 1⅓-2 cm long, (2-)2⅓-2½(-3) cm ø, glabrous, dark chocolate-brown to purplish brown, top rounded-acute, base ro-tundate, scar concave to flat, 1½-2 cm ø; wall woody, 1-2 mm thick, for the greater part free from the cupule; cotyledons flat-convex.

A canopy tree in primary forests, at elevations from sea-level up to 2,600 metres, but more commonly between 500-1,500 metres. In Central and E. Java it is confined to pockets of everwet forest at higher elevations.

Can be grown by seedlings.