Hopea philippinensis (PROSEA)
Hopea philippinensis Dyer
- Protologue: Journ. Bot. 16: 100 (1878).
- Philippines: gisok-gisok (general), makatayring (Tagalog), baguatsa (Bikol).
The wood is a heavy-grade merawan, but owing to the small size of the bole used only locally for house posts and temporary railway ties.
- A small to medium-sized tree of up to 30 m tall, bole with diameter to 40 cm, frequently crooked and branching low, with a few stilt roots, dammar exudations cream-brown, bark surface smooth, red-brown to fawn mottled, inner bark hard, pale brown, sapwood pale yellow, grading to pale brown heartwood; young parts densely pale tawny pubescent.
- Leaves narrowly elliptical-oblong to lanceolate, (7-)12-25 cm × (2.5-)4-7 cm, thin leathery, base unequal, acumen slender, up to 2 cm long, venation scalariform, midrib raised above, secondary veins 17-22 pairs, slender but prominent beneath, obscurely depressed above, arched at 50-60°.
- Stamens 15, ovary and stylopodium hour-glass-shaped, the ovary slightly broader, style short but distinct.
- 2 longer fruit calyx lobes up to 12 cm × 3 cm, 3 shorter ones up to 7 mm × 8 mm, broadly ovate, mucronate, shorter than nut.
H. philippinensis is a widespread and common species of evergreen non-seasonal forest on hills up to 500 m altitude. The density of the wood is 705-950 kg/m3 at 15% moisture content.
175, 258, 579, 593, 748.
Main genus page
- K.M. Kochummen (selection of species),
- F.T. Frietema (selection of species)