Parashorea tomentella (PROSEA)
Jump to navigation
Jump to search
Introduction |
Parashorea tomentella (Sym.) Meijer
- Protologue: Acta Bot. Neerl. 12: 320 (1963).
Synonyms
- Parashorea malaanonan (Blanco) Merr. var. tomentella Sym. (1938).
Vernacular names
- Malaysia: urat mata beludu (Sabah).
Distribution
Borneo (Sabah).
Uses
The timber is used as white seraya; in some localities P. tomentella is the most common timber tree. It is an important export timber of Sabah, used mainly for plywood manufacturing. Locally the timber is used for ship decks, flooring, joinery, cladding, shuttering and utility furniture.
Observations
- A very large tree up to 60 m tall, bole straight, cylindrical, occasionally branchless for more than 30 m, with a diameter of up to 190 cm, buttresses large, up to 4.5 m high, bark surface grey or nearly black, outer bark yellowish-brown, inner bark reddish-brown, sapwood pale yellowish.
- Leaves elliptical to ovate, 10-17(-20) cm × 5-7(-10) cm, lower surface persistently pale tawny pubescent, secondary veins 11-13 pairs, petiole 15-25 mm long, stipule scars amplexicaul.
- Fruit calyx much longer than the nut, 3 longer lobes up to 20 cm × 2.3 cm, 2 shorter ones up to 10 cm × 0.8 cm, lorate, acute, nut subglobose, up to 2 cm in diameter, verrucose.
P. tomentella is common in mixed dipterocarp forest on flat and undulating land below 200 m altitude. The density of the wood is 385-675 kg/m3 at 15% moisture content. See also the table on wood properties.
Selected sources
100, 117, 118, 249, 250, 258, 424, 474, 476, 748, 790.
Main genus page
Authors
- W.M. America (selection of species)