Difference between revisions of "Shorea materialis (PROSEA)"
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<big>''[[Shorea materialis]]'' Ridley</big> | <big>''[[Shorea materialis]]'' Ridley</big> | ||
__NOTOC__ | __NOTOC__ | ||
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:Protologue: Agric. Bull. Straits Fed. Malay States 9: 183 (1910). | :Protologue: Agric. Bull. Straits Fed. Malay States 9: 183 (1910). | ||
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== Observations == | == Observations == | ||
| − | A medium-sized to large tree up to 45 m tall with low-branching bole up to 110 cm in diameter and prominent buttresses up to 2 m high | + | *A medium-sized to large tree up to 45 m tall with low-branching bole up to 110 cm in diameter and prominent buttresses up to 2 m high. |
| + | *Leaves broadly ovate, falcate with a subequal base, 8-15 cm × 3.5-8.5 cm, with 9-12 pairs of slender secondary veins prominent beneath. | ||
| + | *Petals narrow, stamens c. 30, appendages setose. | ||
| + | *Fruit calyx lobes unequal, larger three up to 9 cm × 3 cm. | ||
| + | |||
| + | ''S. materialis'' occurs locally semi-gregarious and has become rare in Peninsular Malaysia as a result of logging. It occurs on giant podzols and sandstone cuestas in heath forest up to 800 m altitude. The density of the wood is 835-1040 kg/m<sup>3</sup> at 15% moisture content. | ||
== Selected sources == | == Selected sources == | ||
| Line 27: | Line 31: | ||
30, 89, 258, 318, 677, 748. | 30, 89, 258, 318, 677, 748. | ||
| + | == Main genus page == | ||
| + | |||
| + | *[[Shorea (balau) (PROSEA)|''Shorea'' (balau)]] | ||
| + | |||
| + | == Authors == | ||
| + | |||
| + | *M.S.M. Sosef (selection of species) | ||
[[Category:Timbers (PROSEA)]] | [[Category:Timbers (PROSEA)]] | ||
[[Category:PROSEA]] | [[Category:PROSEA]] | ||
Latest revision as of 11:11, 13 August 2017
 |
Introduction |
Shorea materialis Ridley
- Protologue: Agric. Bull. Straits Fed. Malay States 9: 183 (1910).
Vernacular names
- Brunei: selangan batu pasir
- Malaysia: balau pasir, balau betul (Peninsular), balau laut (Sarawak).
Distribution
Peninsular Malaysia, north-western Borneo and possibly eastern Sumatra.
Uses
The timber is used as balau. Small amounts of dammar of fairly good quality are obtained from the tree.
Observations
- A medium-sized to large tree up to 45 m tall with low-branching bole up to 110 cm in diameter and prominent buttresses up to 2 m high.
- Leaves broadly ovate, falcate with a subequal base, 8-15 cm × 3.5-8.5 cm, with 9-12 pairs of slender secondary veins prominent beneath.
- Petals narrow, stamens c. 30, appendages setose.
- Fruit calyx lobes unequal, larger three up to 9 cm × 3 cm.
S. materialis occurs locally semi-gregarious and has become rare in Peninsular Malaysia as a result of logging. It occurs on giant podzols and sandstone cuestas in heath forest up to 800 m altitude. The density of the wood is 835-1040 kg/m3 at 15% moisture content.
Selected sources
30, 89, 258, 318, 677, 748.
Main genus page
Authors
- M.S.M. Sosef (selection of species)
