Hopea papuana (PROSEA)

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Plant Resources of South-East Asia
Introduction
List of species


Hopea papuana Diels

Protologue: Bot. Jahrb. Syst. 57: 461 (1922).

Vernacular names

  • Papua New Guinea: light hopea.

Distribution

New Guinea.

Uses

The timber is used as merawan, especially for staircases, window and door frames, and marine constructions.

Observations

  • A small or medium-sized tree of up to 30 m tall, bole branchless for up to 18 m, with a diameter of up to 90 cm, with or without buttresses, bark surface deeply fissured, dark purplish-brown or blackish, inner bark red and green, sapwood pale straw-coloured, heartwood brown; young parts persistently rufous scabrid tomentose.
  • Leaves oblong, 11-28 cm × 4-10 cm, leathery, base unequal, cordate, acumen tapering, up to 2.5 cm long, venation scalariform, midrib raised above, secondary veins 16-24 pairs, arched at 70-80°, slender but prominent above, without domatia.
  • Stamens 15.
  • 2 longer fruit calyx lobes up to 5.5 cm × 1.8 cm, broadly spatulate, obtuse, 3 shorter ones up to 9 mm × 6 mm, ovate, subacute, similarly saccate.

H. papuana is locally abundant on alluvial soils, on low hills and on river banks up to 620 m altitude. The density of the wood is 630-730 kg/m3 at 15% moisture content. See also the table on wood properties.

Selected sources

67, 87, 258, 359, 735, 748.

Main genus page

Authors

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