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Andok
Irvingia gabonensis Baill.
IRVINGIACEAE
Ogwe (Nigeria); Boborou (Côte d`Ivoire); Andok (Gabon); Eniok (Congo); Ebi (Central African Republic); Ntwa (Cameroon); Bwiba banbale (Cameroon); Wild mango; Vjiri; Udika; Oropa; Opopa; Ogui; Ogbou; Ogboin; Nsing; Mutendo; Mukessu; Mombulu; Mbei; Kpele; Kpeh; Keega; Gbele; Etue; Etu; Diuka mahogany; Dika-nut tree; Dika-bread tree; Dika; Dibiue mutshi ditoke; Bopala; Bojep; Boborau; Boborae; Boboi; Bobo; Belle-tu; Andok oba; An-gbere; Agbons; African mango; Oba (Nigeria); Oro (Nigeria); Mueba (Zaire); Meba (Zaire); Andok (Cameroon); Wanini (Côte d`Ivoire); Boboru (Côte d`Ivoire)
Mangifera gabonensis; Irvingia tenuinucleata van Tiegh.; Irvingia barteri Hook. f.
The tree reaches a height of 30 m. The bole is usually straight, cylindrical and slightly buttressed. The trunk diameter attains 100 to 170 cm.
The tropical evergreen rain forest is the optimal habitat for Irvingia gabonensis. However, it occurs also in gallery forest, near riverbanks or other damp locations, and semi-deciduous forest. It is even found in towns or on the outskirts of villages.
Western tropical Africa, from Senegal to Angola.
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Tyloses thin walled. Non-vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits coa Axial parenchyma in discontinuous tangential lines. Prismatic crystals in short chains in chambered axial parenchyma cells. Over 9 cells per parenchyma strand. Axial parenchyma bands more than 3 cells wide. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Non-septate fibers. Fibers with simple to minutely bordered pits.
Unrestricted
The sapwood is yellow with red stripes. The heartwood is pale brown to grey-brown, it is sapwood and heartwood are not always differentiated.
Straight or slightly interlocked, sometimes with an influence on further processing operations.
The wood is typically fine in texture.
Moderately durable to decay. Without preservative treatment, this species can be used when risks of occasional re-humidification, but it is not suited for uses with risks of permanent or long-lasting humidification.
3
Silica Content: It is reported to have a negligible amount of silica. Contents over 0.05% may affect wood processing. Silica Value: 0
Nearly impossible to treat with a too much low penetration of the preservative substances.
0.81
0.93
11.2
6.6
Ease of Drying: Drying is moderately easy; some particular care is needed. Drying Defects: Risks of distortions when interlocked grain is present. Kiln Schedules: The kiln schedule has been tested.
FR-11
1.7
1431
255439
779
112
154
1075
1108
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.
30
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, poles, stakes posts, crossties, HOUSING GENERAL, parquet, FURNITURE AND CABINETS, TURNING, SPORTS, TOOLS, tool handles, agricultural tools, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boats, OTHER AND MUSICAL INSTRUMENTS, handicrafts
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