Lithocarpus rigidus

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Lithocarpus rigidus

Description

Tree 6-18 m, 30 cm ø. Branchlets sturdy, with short internodes and thick nodes, glabrous, dark-brown, sparsely lenticellate; Leaves thick-coriaceous, rigid, (8-)14-16(-18) by (5-)6-8(-10) cm (index 1½-2), broadest at or above the middle; Stipules ovate-acute to lanceolate, 6-8 by 3-4 mm. Fruiting rachis (not fully developed) 15-20 cm, ½-1 cm ø, sparsely fulvous stellate-tomentose;

Distribution

Asia-Tropical: Borneo present (Sabah present), Mts Kinabalu present, Tambuyokan present
Malesia: Borneo (Sabah: Mts Kinabalu and Tambuyokan).

Notes

Fully developed inflorescences, cupules, and fruits not known.
Vegetatively distinct by its extremely rigid thick-coriaceous leaves, with long-decurrent base, and by its sturdy branchlets, inflorescence and infructescence.