Parashorea macrophylla (PROSEA)
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Introduction |
Parashorea macrophylla Wyatt-Smith ex P. Ashton
- Protologue: Gard. Bull. Sing. 19: 262, pl. 5 (1962).
Vernacular names
- Brunei: peran (Malay), bilat (Iban)
- Malaysia: peran (Sarawak).
Distribution
Northern Borneo (not in Sabah).
Uses
The timber is used as white seraya.
Observations
- A large tree up to 50 m tall, bole tall, cylindrical but frequently slightly crooked, up to 110 cm in diameter, buttresses up to 2.5 m tall, bark surface pale mauve-brown, fissured, outer bark hard, dark brown, inner bark hard, pale yellow-brown, sapwood yellow.
- Leaves oblong-elliptical, 30-50 cm × 16-24 cm, silvery to white tomentose below, secondary veins 28-36 pairs, petiole 30-50 mm long, stipules linear.
- Fruit calyx much longer than the nut, the lobes unequal, 3 larger ones 22 cm × 1.8 cm, 2 shorter ones up to 12 cm × 0.7 cm, nut ellipsoid, to 2.5 cm × 1.2 cm, densely buff tomentose.
P. macrophylla occurs locally abundantly on moist clay-rich soils in valleys and gulleys, on and near river banks in inland areas, up to 600 m altitude. The density of the wood is 610-720 kg/m3at 15% moisture content.
Selected sources
30, 31, 89, 258, 474, 748.
Main genus page
Authors
- W.M. America (selection of species)