LATI (Amphimas pterocarpoides)
Trade Name
Lati
Scientific Name
Amphimas pterocarpoides Harms
Family
LEGUMINOSAE
Common Names
White oak (Liberia); Va-tue (Liberia); Bliaglu (Liberia); Yaya (Ghana); Asanfran (Ghana); Lati (Côte d`Ivoire); Edzil (Cameroon); Vahn-chu; Va-tue; Ogiya; Mualeluku; Gworluh; Edzil; Bliaglu; Asanfran; Bokanga (Zaire); Muizi (Congo); Edzui (Gabon); Zdzil (Cameroon); Edjin (Cameroon); Lati
Description Of The Tree
Botanical Description
The tree reaches a height of 40 to 50 m, with diameters of 1.3 to 2 m. The bole is 20 to 26 m in length, straight and cylindrical, sometimes irregular, and buttressed.
Natural Habitat
Amphimas pterocarpoides occurs in the rain, transitional and secondary forests.
Natural Distribution
West Africa, from Equatorial Guinea 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). Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and s Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Axial parenchyma in thick bands. Axial parenchyma storied. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. Axial parenchyma bands un 4 to 10 rays per mm (medium). Rays storied. Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Non-septate fibers. Fibers with simple to minutely bordered pits.
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Wood Macro Photo Radial Plane
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Wood Micro Photo Of Transversal Section
Availability
Cites Status
Unrestricted
General Wood Description
Color
The sapwood is yellowish white. The heartwood is yellowish brown, it is not clearly demarcated. The silver figure is fine.
COLOR INDEX (1=Black, 7=Light yellow,white)
6
Grain
Straight; grain has no particular influence on drying, machining and finishing qualities.
Texture
The wood is typically coarse in texture.
Luster
Luster is usually low.
Natural Durability
Moderately durable to decay. Without preservative treatment, this species can be used only under risk of occasional re-humidification. It is not suited for uses with risks of permanent or long-lasting humidification. Moderately resistant to termites attack
Natural durability index (1= Very high durability, 7=Vey low durability)
3
Internal Growth Stresses
Residual growth stresses are absent.
Silica Content
Silica Content: Negligible content of silica is reported. Amounts over 0.05% may affect wood processing. Silica Value: 0.03
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)
0.77
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.88
Total shrinkage Tangential (Saturated to 0%MC) (%)
10.8
Total shrinkage Radial (Saturated to 0%MC) (%)
6.4
Recommended Dry Kiln Schedule
FR-11
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.7
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1452
Stiffness (MOE) 12%MC (kgf/cm²)
183523
Compression parallel to fiber 12%MC (kgf/cm²)
773
Compression perpendicular to fiber 12%MC (kgf/cm²)
111
Shear strength radial 12%MC (kgf/cm²)
112
Janka hardness (side) 12%MC (kgf)
971
Janka hardness (end grain) 12%MC (kgf)
1022
Workability
Sawing
Sawing of this species requires powerful equipment.
Rotary Veneer Cutting
Suitable for slicing.
Sliced Veneer
Suitable for slicing.
Blunting Effect
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Machining
It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported.
Planing
Moderately easy; tools must be cautiously sharpened.
Moulding
Easy; no particular problems.
Boring
Easy; no particular problems.
Mortising
Easy; no particular problems.
Nailing
Pre-boring is necessary.
Gluing
Difficult to glue because of high density.
Sanding
Easy to perform; it gives good results.
Polishing
Needs pre-coating.
Response To Hand Tools
Working with hand tools is difficult.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, rails, crossarms, crossties, HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, Decorative veneer, PACKING, heavy packing, pallets, OTHER AND MUSICAL INSTRUMENTS, moldings
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Rails
- 6 - Physical and mechanical properties of Eucalyptus deglupta Blume grown in Costa Rica
Crossheads Crossarms
- 7 - Maderas latinoamericanas. II, Quercus alata Q. costaricensis y Q. eugeniaefolia
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Joists
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Boards
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Flooring
- 14 - Handbook of Hardwoods
Parquet
- 15 - Empire Timbers
Frames
- 16 - Woods of the World
Steps
- 17 - Tree Conservation Database
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Fittings
- 19 - Silica in Timbers
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Furniture, Common
- 23 - Handbook of Hardwoods
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Heavy Packing
- 47 - Arvores Brasileiras
Pallets
- 48 - The strength properties of timbers
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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