Atuna racemosa Cockburn ex Prance
Getabon (Philippines); Botga (Philippines); Tabon-tabon (Philippines); Membatu (Sabah); Kukut (Sarawak); Pele kambing (Indonesia); Lomo (Indonesia); Atung (Indonesia)
Parinari glaberrimum (Hassk.) Hassk.; Cyclandrophora excelsa (Jack) Kosterm.; Atuna excelsa (Jack) Kosterm.; Atuna elata (King) Kosterm.
It is a tree up to 35 m tall often with short buttresses.
It is a canopy tree, growing in well drained, evergreen lowland and hill forest, up to 800 m of altitude.
Wood diffuse porous. Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Occasionally tyloses common. Vessels per mm2 less than 6 (rare). Vessel-ray pits reticulate and/or foraminate. Simple perforation plat Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. 5 to 8 cells per parenchyma strand. Over 9 cells per parenchyma strand. Axial parenchyma in narrow bands on lines up to 3 cells wide. Rays more than 10 per mm (abundant). Silica bodies in the ray cells. Occasionally body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Occasionally body ray cells procumbent with one row of upright and/or squa Fibers with distinctly bordered pits.
The heartwood is pale-brown to red-brown, not clearly demarcated from the paler to white sapwood.
This timber usually has straight or interlocked grain.
This species is usually reported to have a fine texture.
The timber of this species is not resistant to dry wood insects, but it is reported to be fairly resistant against marine borers.
Silica Content: It is reported to have a high amount of silica. Contents over 0.05% may affect wood processing. Silica Value: 0
Ease of Drying: Air seasoning is generally reported to be difficult. Drying Defects: Strong tendency to warp and check, collapse and honeycombing are also reported. Kiln Schedules: Careful drying is recommended.
It is very difficult to cut and saw due to its high silica content, but can be split easily for firewood.
The wood has a severe blunting effect.
EXTERIOR GENERAL, poles, stakes posts, crossties, HOUSING GENERAL, beams, flooring, NAVAL CONSTRUCTION, port pillar