Blumeodendron tokbrai (Blume) J.J. Smith
Keterung (Indonesia); Ki kukuran (Indonesia); Tokbrai (Indonesia); Gaham badak (Malaysia)
Blumeodendron vernicosum (Hook. f.) Gage.; Blumeodendron elateriospermum J.J. Smith; Blumeodendron borneense Pax & K. Hoffm.
It is a dioecious, small to medium-sized or rarely large tree up to 35 m tall. The bole is usually straight, up to 120 cm but generally 40-50 cm in diameter, sometimes fluted or with small buttresses, occasionally stilt-rooted in peat-swamp forest.
Blumeodendron is found in primary or secondary forests, generally at low altitudes, but it has been reported up to 2,700 m of altitude.
Wood diffuse porous. Vessels per mm2 5 to 20. Occasionally vessels per mm2 less than 6. Simple perforation plates. Intervessel pits large, 10 micras or more. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Occasionally apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Occasionally paratracheal axial parenchyma scanty and/or vasicentric. Prismatic crystals in chambered axial par Rays more than 10 per mm (abundant). Occasionally rays of two distinct sizes. Ray height more than 1 mm. Occasionally larger rays more than 4 seriate. Occasionally sheath cells. Occasionally aggregated rays. Prismatic crystals in radial alignment in procumbent Occasionally fibers with distinctly bordered pits.
The heartwood is pale yellow-brown or straw-brown with a slight pink tinge, not clearly differentiated from the sapwood.
The grain is usually straight, sometimes slightly interlocked.
Texture is usually moderately coarse.
The wood is non-durable, with an average service life of 1.5 years in a graveyard test in Malaysia.
This species is easy to treat with preservatives.
Ease of Drying: Air seasoning is reported to be slow. Quarter sawing is recommended to minimize surface checking. In Indonesia it takes 3 months to season 20 mm thick boards from 40% to 14% moisture content. Drying Defects: Risk of surface checking. Kiln Schedules: The recommended kiln schedule is a temperature of 35 to 65 degrees with a corresponding relative humidity of 70% to 30%.
It is considered to have a moderate blunting effect on the cutting elements.
Machining operations are rather easy.
Planing is easy, but some grain picking up is reported.
Boring of this species is reported to be easy.
HOUSING GENERAL, shutter boards