Gonystylus affinis (PROSEA)

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Plant Resources of South-East Asia
Introduction
List of species


Gonystylus affinis Radlk.

Protologue: Sitzungsber. Math.-Phys. Kl. Bayer. Akad. Wiss. München 16: 329 (1887).

Synonyms

  • Gonystylus beccarianus v. Tieghem (1893) p.p.

Vernacular names

  • Indonesia: banit (West Kalimantan)
  • Malaysia: ramin dara elok (Peninsular), poko batu pasir (Negeri Sembilan), pinang baik.

Distribution

Peninsular Malaysia, south-western Sarawak and possibly in West Kalimantan.

Uses

The timber is used as ramin, mainly for house construction.

Observations

  • A small to medium-sized tree of up to 33 m tall, bole up to 90 cm in diameter, fluted, bark surface smooth to shallowly fissured and sloughing in square scales, reddish to brown, occasionally with white patches, inner bark pink.
  • Leaves elliptical to almost oblong, 9-19 cm × 3.5-8.5 cm, broadly cuneate to rounded at base, shortly caudate-acuminate at apex, margin markedly revolute, glabrous above, often rather persistently tomentellous below, especially on the midrib, petiole 10-15(-20) mm long.
  • Inflorescence 8-15 cm long, densely fulvous-tomentellous.
  • Petals about 20, filiform-subulate, glabrous.
  • Fruit globose, up to 4 cm in diameter.

G. affinis occurs on plains, hillsides and ridges, in open rain forest, mixed dipterocarp forest and heath forest up to 330 m altitude. The density of the wood is about 730 kg/m3 at 15% moisture content.

Selected sources

100, 620, 748, 779, 807.

Main genus page

Authors

  • L.E. Groen (selection of species)