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Dipterocarpus kerrii King

Dipterocarpus kerrii King

Family

Dipterocarpaceae

Synonyms

D. obconicus Foxw., D. cuneatus Foxw., D. perturbinatus Foxw.

Vernacular Names

Malaysia Keruing gondol (Peninsular, Sabah), keruing chair, damar minyak (Peninsular).
Indonesia Lagan beras (northern Sumatra).
Philippines Malapanau (General), panalsalan (Bikol).
Burma See-bin.
Thailand Yang-manmu, yang-man-khon, yang-wat (Peninsular).

Geographical Distributions

Dipterocarpus kerri is distributed inthe Andaman Islands, peninsular Burma, peninsular Thailand, peninsular Malaysia, northern Sumatra, Sabah and the Philippines.

 

Description

D. kerri is a medium-sized to fairly large tree of up to measure 40 m tall, tall bole, branchless for up to measure 25 m, with a size up to measure 150 cm in diametre and blunt buttresses. The bark surface is non-fissured, dark grey to yellowish-grey in colour and flaky. The outer bark is thin and grey while the inner bark is pinkish-brown in colour, brittle and with pale ochre sapwood. The buds are lance-shaped-falcate and hairless.

The leaves are broadly elliptical in shape, measuring about 8-13 cm x 3.3-7 cm, wedge-shaped base and up to 5 mm long acumen. The secondary veins are (7-)9-11 pairs, ascending, hairless, 2-3 cm long petiole, linear-lance-shaped stipules, subacute and silky hairy inside. The stamens are about 30.

The fruit sepal tube is spherical to subturbinate and smooth, where the 2 larger fruit sepal lobes are up to measure 14 cm x 3 cm while the 3 shorter ones are up to 1 cm x 1 cm.

 

Ecology / Cultivation

D. kerrii is locally common in semi-evergreen and evergreen lowland dipterocarp forest and occurs near the coast or less frequently inland on flat land or hills up to400 m altitude. The density of the wood is 555-875 kg/m3 at 15% moisture content.

 

Line Drawing / Photograph

Dipterocarpus_kerrii

 

References

    1. Plant Resources of South-East Asia No. 18: Plants producing exudates.

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