Lithocarpus vinkii Soepadmo

Tree 15-30 m, 15-50 cm ø; buttresses sometimes present, up to 2½ m tall and out, 10 cm thick; bark grey-brown, smooth to shallowly fissured. Branchlets initially densely set with a fulvous adpressed stellate tomentum, soon glabrescent, greyish brown, finely fissured, with many minute lenticels; terminal buds ovoid, c. 3 by 2 mm, scales ovate. Stipules ovate, 1-2 by 1 mm. Leaves coriaceous, (7-)8-14(-18) by (3-)4-5(-7) cm (index (1.7-)2-2½(-3½)), broadest at or rarely below the middle; surfaces more or less discolor-ous, above glabrous, dull or glossy, pale to dark greyish brown, beneath yellowish grey to glaucous tomentose by adpressed minute stellate hairs; base acute, rarely rounded, top abruptly acute to ½-1 cm acuminate, tip blunt or pointed, sometimes oblique; midrib and nerves thin, flattish on both sides to impressed above; nerves (8-)10-12 pairs, subparallel, at an angle of 45-50°, arcuating but not anastomosing towards the margin; reticulation fine, irregular, obscure on both sides; petiole 7-10 mm, 1½-2 mm ø, adaxially flat. Inflorescence male or androgynous, mostly simple and axillary, densely fulvous tomentose by short stellate hairs; bracts and bracteoles narrowly ovate, ⅔-1 by ½-⅔ mm. Male rachis 10-20 cm, 1½ mm ø; ♂ flowers in clusters of 3, filaments c. 2 mm, anthers 0.25 mm long, pistillode subglobose, ⅔-1 mm ø. Androgynous rachis 10-15 cm, 1½-2 mm ø; female flowers solitary or rarely in clusters of 2, staminodes rather well-developed but not exceeding the perianth, styles 3(-4), conical, c. 1 mm, recurved. Ripe cupule solitary or rarely in clusters of 2, subsessile, saucer-shaped, ⅓-½ cm long, 1½-2 cm ø, inside densely greyish tomentose by simple hairs, outside densely fulvous to glacous tomentose by adpressed stellate hairs; rim thin, incurved, covering the basal part of the fruit; lamellae 4-6, concentric, thin, denticulate. Ripe fruit conical, glabrous, pale chocolate-brown, 1¾-2½ cm long, 1½ cm ø, top acute, base truncate or rounded, scar concave, ¾-1 cm ø; wall woody, c. 1 mm thick, for the greater part free from the cupule; cotyledons flat-convex.

Forest, from sea-level up to 1800 m, more commonly below 700 m, on sandy to clayey soil overlying limestone. Both in the Vogelkop Peninsula and in the islands east of New Guinea, this species has been recorded as forming pure stands on low ridges. Fl. March-Dec, fr. Sept.-March.

Can be grown by seedlings.