Hopea johorensis (PROSEA)
From PlantUse English
Hopea johorensis Sym.
- Protologue: Journ. Mal. Br. Roy. As. Soc. 19, 2: 139, pl. 1B (1941).
- Malaysia: mata kucing pipit (Peninsular).
Peninsular Malaysia (eastern Johor).
The timber is used as merawan. The tree yields dammar.
- A medium-sized tree, bole poorly shaped, with a diameter of up to 50 cm, with sharp stilt roots, bark surface dull purple-brown, powdery, inner bark dull brown, tinged pink, or light red-brown grading to almost colourless at the cambium, sapwood pale yellow, usually with ripple marks; young parts persistently or caducously greyish-buff pubescent.
- Leaves ovate, 3-7 cm × 1.5-3.5 cm, leathery, base more or less abruptly cuneate, subequal, acumen slender, up to 12 mm long, venation dryobalanoid, midrib raised above, secondary veins abouts 16 pairs, with many subequal smaller veins in between, very slender and hardly elevated beneath.
- Stamens 15.
- 2 longer fruit calyx lobes up to 4 cm × 0.8 cm, subacute, tapering to base, 3 shorter ones up to 3 mm × 3 mm, ovate, subacuminate.
H. johorensis is locally common on hill ridges. The density of the wood is 595-690 kg/m3 at 15% moisture content.
258, 359, 677, 748.
Main genus page
- K.M. Kochummen (selection of species),
- F.T. Frietema (selection of species)