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Tola
Gossweilerodendron balsamiferum Harms
LEGUMINOSAE
Otabo (Nigeria); Agba (Nigeria); Otabo (United Kingdom); Agba (United Kingdom); Tola branca (Germany); Agba (Germany); Tola (Zaire); N'tola (Zaire); Emolo (Gabon); Tola (Congo); N'tola (Congo); Sinedon (Cameroon); White tola; Tshibudimbu tshitoke; Pink mahogany; Okimeten; Ntola; Nigerian cedar; Mutsekamambole; Mushilu mutoke; Mupaka; Mpere; Mpele; Moboron; Mboron; Loshi-erin; Emonga; Ditchipi; Dembo; Boana; Agbara; Achi-aro; Achi; N`tola (Zaire); Tola branca (Angola); Tola blanc (Zimbabwe); Tola blanc (Congo); Emongi (Nigeria); Egba (Nigeria); Agba; Tola
Pterygopodium balsamiferum Vermoesen
The tree reaches a height of more than 50 m, with trunk diameters up to 170 or even 200 cm. The bole is clear and straight to 26 to 30 m in length and more.
Gossweilerodendron balsamiferum grows in mature little-disturbed lowland rainforest. It is known or inferred that the harvesting of specimens from the wild for international trade has, or may have, a detrimental impact on the species by EITHER. Exceending
West and Central Africa, from Nigeria to the Democratic Republic of the Congo.
Contains some resins or extracts which could pose problems when machining or finishing.
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 to 150 micras (small). Vestured pits. Vessels per mm2 6 to 10 (medium). Simple perforation plates. Vessel-ray pits similar to intervessel pits in Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma lozenge-aliform. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent).
Unrestricted
Peppered odor.
The sapwood is whitish, it has a thickness of 10 cm. The heartwood is pinkish yellow-brown, darkening on exposure, it is not clearly demarcated. The silver figure is fine.
5
Straight or slightly interlocked, sometimes with an influence on further processing operations.
The texture is typically medium to coarse.
It is reported to be low in luster.
Because of its variable resistance it is considered as moderately durable to decay. Without treatment, it can be used when risks of occasional re-humidification; it is not suited for uses with risks of permanent or long-lasting humidification. Sensible to
4
No residual stresses are reported in this species.
Difficult to treat with only a low penetration of the preservative products.
0.48
0.52
5.4
2.4
Ease of Drying: Drying is moderately easy; some particular care is needed. Drying Defects: Risks of casehardening and checks Kiln Schedules: Schedule proposed as a reference by comparison with well known species taking into account to the general technological behavior of this species.
FR-1
2.3
754
111290
408
47
69
326
429
It is easy to saw.
Suitable for slicing and peeling.
Suitable for slicing and peeling.
Slight blunting effect; ordinary tools can be used for sawing and machining.
Machining of this species is reportedly easy.
Easy; no particular problems.
Moderately easy; tools must be cautiously sharpened.
Moderately easy; tools must be cautiously sharpened.
Moderately easy; tools must be cautiously sharpened.
No particular problem.
Difficult to glue because of the extracts content.
Easy to perform; it gives good results.
Needs pre-coating.
No particular problems.
HOUSING GENERAL, beams, joists, boards, frames, steps, panelling, fittings, shutter boards, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, faces, Decorative veneer, PACKING, heavy packing, pallets, NAVAL CONSTRUCTION, boat deck, port storage, OTHER AND MUSICAL INSTRUMENTS, door core, shingle, coffin, moldings
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