Castanopsis borneensis (PROSEA)
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Introduction |
- Protologue: Ann. Roy. Bot. Gard. Calc. 2: 99, t. 90 (1889).
Distribution
Borneo (Sarawak, Brunei and Sabah).
Uses
The wood is reputed to be used as berangan.
Observations
A medium-sized tree up to 33 m tall, bole up to 85 cm in diameter, sometimes with stout buttresses, bark surface smooth or slightly fissured, shallowly flaky, pale ochre-brown to dark brown; leaves 5-13 cm × 2-4 cm, with 5-8 pairs of secondary veins, brownish-green and glabrous below; cupule 2.5-3 cm × 2-2.5 cm, enclosing the single fruit, subglabrous, very densely set with bundles of slender to rather sturdy, unbranched spines, fruit completely adnate to the cupule. C. borneensis occurs in primary or disturbed heath forest on peat or deep yellow sand, on hills below 450 m altitude.
Selected sources
81, 99, 162, 412.