Cotylelobium lanceolatum (PROSEA)
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Introduction |
Cotylelobium lanceolatum Craib
- Protologue: Kew Bull.: 113 (1913).
Synonyms
- Cotylelobium malayanum v. Slooten (1932),
- Sunaptea lanceolata (Craib) Kosterm. (1987).
Vernacular names
- Brunei: resak bukit
- Indonesia: giam padi (general), resak gagil, resak daun kecil (East Kalimantan)
- Malaysia: resak batu, resak bukit (Peninsular), resak kelabu (Sabah, Sarawak)
- Thailand: mai khiam.
Distribution
Peninsular Thailand, Peninsular Malaysia, the Anambas Islands and Borneo.
Uses
The timber is used as resak. The bark is used locally to prevent frothing in sweet palm juice and to arrest fermentation of toddy and local wine.
Observations
- A medium-sized to large tree up to 45 m tall, bole usually short and bent or twisted, up to 125 cm in diameter.
- Leaves narrowly ovate-lanceolate, 6-8 cm × 2.5-3 cm, the margin revolute, the lower surface densely dark grey tomentose, the intramarginal vein at about 2 mm from the margin
- 2 larger fruit calyx lobes up to 6.5 cm × 1.8 cm.
C. lanceolatum is locally abundant on podzolic and sandstone soils or on peat overlying limestone, often in heath forest up to 1500 m altitude. The density of the wood is 810-1160 kg/m3 at 15% moisture content.
Selected sources
30, 89, 100, 102, 253, 258, 382, 677, 739, 748.
Main genus page
Authors
- C. Niyomdham