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SYZYGIUM (Syzygium guineense)
Trade Name
Syzygium
Scientific Name
Syzygium guineense DC.
Family
MYRTACEAE
Common Names
Kissa (Mali); Kayo (Guinea); Kaga (Guinea); Syzygium
Scientific Name Synonyms
Syzygium fleuryi A. Chev.; Calyptranthes guineense Willd.
Description Of The Tree
Botanical Description
The tree reaches a height of 26 to 40 m. The bole is rarely of good shape, buttressed, with length from 10 to 16 m. The trunk diameter attains up to 200 cm.
Natural Habitat
Syzygium guineense is common in swampy areas, by water courses, in rain forests, and widely distributed up to altitudes of 2,400 m.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 to 150 micras (small). Tyloses thin walled. Vestured pits. Vessels per mm2 10 to 20 (abundant). Simple perforation plates. Vessel-ray pits coarse Axial parenchyma confluent. Non-crystals in axial parenchyma cells. 5 to 8 cells per parenchyma strand. Rays more than 10 per mm (abundant). Rays non-storied. Larger rays more than 4 seriate. Heterogeneous rays and/or multiseriate heterogeneous rays. Non-septate fibers. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is red or pink-brown, pale brown on drying, it is not clearly demarcated.
Grain
Straight; grain has no particular influence on drying, machining and finishing qualities.
Texture
The wood is mostly fine in texture.
Luster
It is reported to be low in luster.
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
No growth stresses are reported in this species.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.66
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.74
Drying Defects
Ease of Drying: Drying is moderately difficult to difficult; special care is systematically needed. Drying Defects: Risks of resin exudation Kiln Schedules: The kiln schedule has been tested.
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
894
Compression parallel to fiber 12%MC (kgf/cm²)
439
Compression perpendicular to fiber 12%MC (kgf/cm²)
52
Janka hardness (side) 12%MC (kgf)
681
Janka hardness (end grain) 12%MC (kgf)
771
Workability
Sawing
It is moderately easy to saw.
Rotary Veneer Cutting
Not suitable for veneering.
Sliced Veneer
Not suitable for veneering.
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
Moderately easy; tools must be cautiously sharpened.
Turning
30
Boring
Moderately easy; tools must be cautiously sharpened.
Mortising
Moderately easy; tools must be cautiously sharpened.
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
EXTERIOR GENERAL, poles, stakes posts, crossties, HOUSING GENERAL, flooring, parquet, fittings, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, cores, TURNING, PACKING, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boats, OTHER AND MUSICAL INSTRUMENTS, handicrafts, particleboard
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Poles
- 3 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas do genipapo (Genipa americana)
Stake Posts
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
- 10 - Silica in Timbers
Flooring
- 14 - Handbook of Hardwoods
Parquet
- 15 - Empire Timbers
Fittings
- 19 - Silica in Timbers
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
- 24 - Empire Timbers
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Cores
- 27 - Embassy of Brazil in Japan
Turning
- 30 - Embassy of Honduras in Japan
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Truck Body
- 53 - Timbers of the New World
Truck Flooring
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boats
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Particleboard
- 80 - Estudio Integral de la Madera para Construcción
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