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Sloanea
Sloanea sigun (Blume) K. Schumann
ELAEOCARPACEAE
Ko rian (Thailand); Landakan (Indonesia); Ngoh pa (Thailand); Si bala kayu (Sumatra); Si bala kayu (Indonesia); Ki somang (Indonesia); Sati ton (Thailand)
Echinocarpus sigun Blume
It is an evergreen tree, up to 40 m high and 70 cm in diameter. The trunk is not straight, branchless for up to 17 m. The bole is often fluted or with large buttresses, up to 3 m high.
Sloanea sigun is widespread in Sabah. It can be a dominant tree, occurring scattered in primary or secondary forests, up to 2,000 m of altitude.
Tyloses common. Vessels per mm2 5 to 20. Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Intervessel pits large, 10 micras or more. Rays of two distinct sizes. Larger rays more than 4 seriate. Sheath cells. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Fibers with distinctly bordered pits.
Unrestricted
The heartwood is cream to brown, sometimes with an olive tinge, not clearly differentiated from the pale brown sapwood.
The grain is mostly straight
The texture varies from moderately fine to moderately coarse.
The wood luster is reported to be rather moderate.
It is perishable and rapidly attacked if it is unprotected.
5
The heartwood is moderately easy to preserve, but the sapwood takes preservatives easily.
0.51
0.55
7.8
3.8
Ease of Drying: Drying is very slow and difficult to perform; defects are frequent. Drying Defects: Risks of checks and distortions. Kiln Schedules: Schedule proposed as a reference by comparison with well known species taking into account to the general technological behavior of this species.
JP-25
2.0
754
95022
392
92
71
333
394
Wood of this species is easy to cut.
This species is reported to have good characteristics for lamination.
This species is reported to have good characteristics for lamination.
The response of this species to machining operations is good to fair.
30
This species is reported to have a good to fair response to hand tools.
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