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Shorea materialis (PROSEA)

1,311 bytes added, 16:04, 9 February 2016
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>
__NOTOC__

: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/m<sup>3</sup>at 15% moisture content.

== Selected sources ==

30, 89, 258, 318, 677, 748.


[[Category:Timbers (PROSEA)]]
[[Category:PROSEA]]