ADONMOTEU (Anthonotha fragrans)
Trade Name
Adonmoteu
Scientific Name
Anthonotha fragrans Exell et Hillcoat
Family
LEGUMINOSAE
Common Names
Andomoteu (Côte d`Ivoire); Kibakoko (Congo); Lebelo (Cameroon); Kibakoko (Cameroon); Akoung élé évélé (Cameroon); Adonmoteu
Scientific Name Synonyms
Macrolobium fragrans Bak. f.; Macrolobium chrysophylloides Hutch. & Dalz.
Description Of The Tree
Botanical Description
The bole is straight and cylindrical, with diameters usually up to 130 or even 170 cm. The boles are up to 26 m in length and fluted at the base. The tree is buttressed.
Natural Habitat
Widely distributed in the Atlantic evergreen forest.
Natural Distribution
West Africa, from Sierra Leone to the Democratic Republic of the Congo.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Resinous deposits in heartwood vessels. Vestured pits. Simple perforation plates. Vessel-ray pits similar to intervessel Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma lozenge-aliform. Axial parenchyma confluent. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. Rays more than 10 per mm (abundant). Rays non-storied. Rays exclusively uniseriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Non-septate fibers. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The sapwood is beige. The heartwood is pinkish brown with dark brown veins, it is clearly demarcated.
Grain
Slightly interlocked grain and variations of the slope are frequent, and could induce distortion during drying.
Texture
The wood is mostly medium in texture.
Luster
The wood is described as low in luster.
Natural Durability
Very durable to decay; without preservative treatment. This species is especially suited for all the uses with risks of permanent or long-lasting humidification. Resistant to termites attack. Heartwood is resistant to Lyctus attacks.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Internal Growth Stresses
For this species no growth stresses are reported.
Resistance To Impregnation
Nearly impossible to treat with a too much low penetration of the preservative substances.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.67
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.75
Total shrinkage Tangential (Saturated to 0%MC) (%)
8.4
Total shrinkage Radial (Saturated to 0%MC) (%)
4.2
Drying Defects
Ease of Drying: The wood of this species is reported to season well, with little shrinkage and warping.
Recommended Dry Kiln Schedule
FR-6
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.0
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1208
Stiffness (MOE) 12%MC (kgf/cm²)
154585
Compression parallel to fiber 12%MC (kgf/cm²)
669
Compression perpendicular to fiber 12%MC (kgf/cm²)
91
Shear strength radial 12%MC (kgf/cm²)
78
Janka hardness (side) 12%MC (kgf)
700
Janka hardness (end grain) 12%MC (kgf)
788
Workability
Sawing
It is moderately easy to saw.
Rotary Veneer Cutting
Suitable for slicing.
Sliced Veneer
Suitable for slicing.
Blunting Effect
Slight blunting effect; ordinary tools can be used for sawing and machining.
Machining
Machining of this species is reportedly easy.
Planing
Moderately easy; tools must be cautiously sharpened.
Moulding
Rather difficult; special tools are needed.
Boring
Rather difficult; special tools are needed.
Mortising
Rather difficult; special tools are needed.
Nailing
Pre-boring is necessary.
Gluing
Glues well if basic gluing technical rules are followed.
Sanding
Easy to perform; it gives good results.
Polishing
Can be polished without surface preparation.
Response To Hand Tools
No particular problems.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, PLYWOOD AND VENEER
General Housing
- 10 - Silica in Timbers
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
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