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KEDONDONG (Triomma malaccensis)
Trade Name
Kedondong
Scientific Name
Triomma malaccensis Hook.f.
Family
BURSERACEAE
Common Names
Seladah (Sarawak); Kedondong asam (Sabah); Kedondong kijai (Malaysia); Rang garai (Indonesia); Bayung (Indonesia); Resung (Indonesia)
Scientific Name Synonyms
Triomma macrocarpa Backer ex Thorenaar; Canarium mahassan Miq.
Description Of The Tree
Botanical Description
It is a dioecious, large to very large tree up to 60 m tall, and 100 cm in diameter. The bole is branchless for a considerable length, with broad buttresses up to 3 m high.
Natural Habitat
Triomma malaccensis is found scattered mainly in primary lowland rain forest, rarely in secondary forests, up to 400 m of altitude. Not enough information available to apply the criterrion.(CITES,?,1997)
Natural Distribution
Widespread in Borneo.
Non Timber Uses
Brittle heart is reported for this species.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels per mm2 5 to 20. Simple perforation plates. Vessel-ray pits coarse throughout the ray cell. Intervessel pits medium, 7 to 10 micras. Paratracheal axial parenchyma scanty and/or vasicentric. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Septate fibers present. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is brown and not distinctly demarcated form the paler sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
5
Grain
The grain is straight to shallowly interlocked.
Texture
Texture is usually medium to moderately coarse.
Luster
Planed surfaces are slightly lustrous.
Natural Durability
The wood is rated as non-durable in exposed conditions or in contact with the ground. It is readily attacked by fungi and termites. Blue staining can be a serious problem. The sapwood is very susceptible to powder-post beetle attack.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Resistance To Impregnation
The heartwood is resistant to impregnation with preservatives, even under pressure, but the sapwood is more permeable.
Wood Physical Properties
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.70
Drying Defects
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.
Recommended Dry Kiln Schedule
UK-J
Wood Chemical Properties
Wood Mechanical Properties
Workability
Sawing
Sawing of this wood is reported to be fair.
Rotary Veneer Cutting
This species is reported to be interesting for lamination.
Sliced Veneer
This species is reported to be interesting for lamination.
Planing
Planing operations give a moderately smooth surface.
Boring
Boring of this species is reported to be easy.
Nailing
Nailing properties are good.
Gluing
Gluing of this species gives good results.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, boards, flooring, frames, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING, pallets, OTHER AND MUSICAL INSTRUMENTS, particleboard
General Housing
- 10 - Silica in Timbers
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
Frames
- 16 - Woods of the World
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Pallets
- 48 - The strength properties of timbers
Particleboard
- 80 - Estudio Integral de la Madera para Construcción
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