Difference between revisions of "Shorea materialis (PROSEA)"

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(Created page with "{{PROSEAUpperbar}} {{DISPLAYTITLE:''Shorea materialis'' (PROSEA)}} <big>''Shorea materialis'' Ridley</big> __NOTOC__ :Protologue: Agric. Bull. Straits Fed. Malay States 9...")
 
 
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<big>''[[Shorea materialis]]'' Ridley</big>
 
<big>''[[Shorea materialis]]'' Ridley</big>
 
__NOTOC__
 
__NOTOC__
 
 
: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; 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.
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*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 ==
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30, 89, 258, 318, 677, 748.
 
30, 89, 258, 318, 677, 748.
  
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== Main genus page ==
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*[[Shorea (balau) (PROSEA)|''Shorea'' (balau)]]
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 +
== Authors ==
 +
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*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

Logo PROSEA.png
Plant Resources of South-East Asia
Introduction
List of species


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)