Hopea ferruginea (PROSEA)

Plant Resources of South-East Asia Introduction

List of species

Hopea ferruginea Parijs

Protologue: Feddes Repert. 33: 243 (1933).

Synonyms

• Hopea micrantha Dyer (1874) non Hook.f. p.p.

Vernacular names

• Indonesia: merawan dasal (Sumatra, Kalimantan), bangkirai emang (south-eastern Kalimantan), chengal lempong (western Sumatra)
• Malaysia: (merawan) mata kucing merah (Peninsular), selangan mata kucing (Sabah), luis merah (Sarawak).

Distribution

Peninsular Malaysia, the Riau Archipelago, eastern and central Sumatra and eastern Borneo.

Uses

The timber is used as merawan. H. ferruginea is a minor source of dammar.

Observations

• A medium-sized to fairly large tree of up to 40 m tall, bole branchless for up to 25 m, with a diameter of up to 75 cm and stilt roots and flying buttresses, frequently with globular exudations of clear dammar, bark surface flaky, light grey-brown, inner bark dull pink, grading to pale yellow, sapwood pale; young parts densely persistently greyish puberulent.
• Leaves ovate to lanceolate, 4.5-7 cm × 1.5-4 cm, subleathery, base cuneate, shortly decurrent, acumen slender, up to 1.5 cm long, venation dryobalanoid, midrib raised and puberulent above, secondary veins about 14 pairs with many subequal smaller veins in between, distinct.
• Stamens 15, unequal, ovary ovoid, stylopodium absent, style columnar, somewhat longer than the ovary, villous towards base.
• 2 longer fruit calyx lobes up to 3 cm × 0.5 cm, narrowly obtuse, 3 shorter ones up to 8 mm × 4 mm, ovate-acuminate, closely enveloping the nut.

H. ferruginea is locally frequent in mixed dipterocarp forest on deep fertile soils up to 750 m altitude. The density of the wood is 520-930 kg/m³ at 15% moisture content.

Selected sources

75, 89, 100, 253, 258, 461, 476, 514, 677, 748.

Main genus page

• Hopea (merawan)

Authors

• K.M. Kochummen (selection of species),
• F.T. Frietema (selection of species)