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Miama
Calpocalyx heitzii Pellegr.
LEGUMINOSAE
Miama (Gabon); Miama
The tree reaches a height of 30 to 35 m. The bole is slim, straight and cylindrical. The trunk diameter attains 100 cm.
Calpocalyx heitzii is a coastal forest species, it prefers high rainfall areas.
South of Cameroon on the border with Equatorial Guinea and north of the Ogooué River in Gabon.
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 150 to 200 micras (medium). Vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma lozenge-aliform. Occasionally axial parenchyma confluent. Prismatic crystals in chambered axial parenchyma cells and/or in f Rays more than 10 per mm (abundant). Rays non-storied. Rays 1 to 2 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Septate fibers present. Fibers with simple to minutely bordered pits.
Unrestricted
The sapwood is light pinkish grey. The heartwood is reddish brown, sometimes with irregular brown streaks, it is not clearly demarcated.
4
Straight or slightly interlocked, sometimes with an influence on further processing operations.
This species is usually reported to have a medium texture.
The wood surface is described as low in luster.
Durable to decay; this species can be utilized without preservative treatment for exterior joinery or similar uses. Resistant to termites attack. Heartwood is resistant to Lyctus attacks.
1
Residual growth stresses are absent.
Silica Content: Negligible contents of silica are found in timber of this species. Amounts over 0.05% may affect the wood processing. Silica Value: 0
Difficult to treat with only a low penetration of the preservative products.
0.72
0.82
8.9
5.0
Ease of Drying: It is reported to air season well and rapidly with little degrade. Air drying takes approximately 2 months for boards of 15 mm thick. Kiln Schedules: Schedule proposed for Maranggo.
FR-8
1.8
1224
179306
711
99
121
832
903
Sawing of this species requires powerful equipment.
Not suitable for veneering.
Not suitable for veneering.
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported.
Moderately easy; tools must be cautiously sharpened.
Moderately easy; tools must be cautiously sharpened.
Moderately easy; tools must be cautiously sharpened.
Moderately easy; tools must be cautiously sharpened.
Pre-boring is necessary.
Difficult to glue because of high density.
Easy to perform; it gives good results.
Can be polished without surface preparation.
Working with hand tools is difficult.
EXTERIOR GENERAL, paling, rails, crossarms, crossties, HOUSING GENERAL, beams, joists, boards, frames, panelling, PACKING, pallets, CONTAINERS, truck bodies, truck flooring, OTHER AND MUSICAL INSTRUMENTS, handicrafts, door core
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