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< Back TRISTIROPSIS (Tristiropsis acutangula) Print Friendly View
Tristiropsis
Tristiropsis acutangula Radlk.
SAPINDACEAE
Gasi-gasi (Philippines); Hende (Indonesia); Lere (Indonesia); Kugwo (West Irian); Kugwo (Indonesia); Brayo (Philippines); Tungum-tagum (Philippines)
Tristiropsis subfalcata Radlk; Tristiropsis oblonga Radlk.; Tristiropsis canarioides Boerl. ex Valeton
Small to fairly large trees, up to 35 m tall. The bole is branchless for up to 25 m and diameters of 100 cm, often twisted or sinuous, with buttresses up to 3 m high.
It is often an upper-storey component of primary and secondary forests in lowlands, rarely found above 500 m. It is also found near the coast in New Guinea.
Wood diffuse porous. Colored deposits in heartwood vessels. Vessels per mm2 5 to 20. Occasionally vessels per mm2 less than 6. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel pits medium, 7 to 10 micras. Inte Axial parenchyma in marginal or in seemingly marginal bands. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Axial parenchyma aliform. Axial parenchyma confluent. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 to 10 rays per mm (medium). Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Septate fibers present. Fibers with simple to minutely bordered pits.
Unrestricted
Sometimes it has distinct odor.
The sapwood varies in color from pale pink or cream to pinkish-brown. The heartwood is gray-brown to red-brown.
5
Straight or interlocked grain is often found in this species.
The texture varies from medium to coarse.
It is a lustrous wood.
This timber is liable to sap-stain, pinhole borer and termite attack.
5
The heartwood is extremely resistant to impregnation, sapwood is only patchily penetrated by preservatives.
0.63
0.70
12.6
5.6
Ease of Drying: Drying is moderately difficult to difficult; special care is systematically needed. Drying Defects: Risks of distortions. Kiln Schedules: The kiln schedule has been tested.
2.3
1137
155372
560
79
155
592
805
It is easier to cut when dry, fibrous surfaces are reported after sawing.
Lamination of this species is possible.
Lamination of this species is possible.
Machining properties are reasonably good with a satisfactory finish, but grain may pick up on back-sawn material. A cutting angle of 20 degrees is recommended.
30
The response of this species in finishing is good to fair.
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