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DEDARU (Cantleya corniculata)
Trade Name
Dedaru
Scientific Name
Cantleya corniculata (Becc.) Howard
Family
ICACINACEAE
Common Names
Samala (Brunei Darussalam); Cendana (Brunei Darussalam); Seranai (Brunei Darussalam); Bedaru (Indonesia); Mendaru (Indonesia); Daru-daru (Malaysia); Dedadu (Sabah); Bedaru (Sarawak); Garu buaya (Indonesia)
Scientific Name Synonyms
Urandra corniculata (Becc.) Foxw.; Stemonurus corniculatus (Becc.) ridley; Cantleya johorica Ridley
Description Of The Tree
Botanical Description
It is an evergreen, medium-sized to fairly large tree up to 40 m tall. The bole is slender, cylindrical, branchless for up to 20 m, up to 60 cm in diameter, usually expanded at base or rarely with buttresses up to 1.5 m high.
Natural Habitat
Cantleya corniculata is relatively scarce and found scattered in primary forests. It grows from the sea level up to 300 m of altitude in the drier areas of freshwater and peat swamp forests. It is known or inferred that the harvesting of specimens from th
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 micras or less (very small). Tyloses sclerotic. Tyloses common. Vessels per mm2 5 to 20. Vessels per mm2 less than 6 (rare). Intervessel pits scalariform. Simpl Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Occasionally paratracheal axial parenchyma scanty and/or vasicentric. 3 to 4 cells per parenchyma strand. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Ray height more than 1 mm. Larger rays more than 4 seriate. Occasionally sheath cells. Occasionally body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I). Body ray cells procumbent with mostl Fibers very thick walled. Fibers with distinctly bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
Freshly cut material has a fragrant odor.
Color
The heartwood is yellow-brown, sharply demarcated from the pale sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
5
Grain
It has interlocked grain.
Texture
The texture is rather fine.
Luster
This wood presents a conspicuous ribbon figure on the radial face.
Natural Durability
The wood is very durable, even in contact with the ground.
Natural durability index (1= Very high durability, 7=Vey low durability)
1
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.84
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.97
Total shrinkage Tangential (Saturated to 0%MC) (%)
5.3
Total shrinkage Radial (Saturated to 0%MC) (%)
3.6
Drying Defects
Ease of Drying: Air seasoning of Rengas is reported to be good with little degrade. Boards 15 mm thick require 2-3 months to air dry. Drying Defects: Slight checking and warping are reported.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.5
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1651
Stiffness (MOE) 12%MC (kgf/cm²)
186757
Compression parallel to fiber 12%MC (kgf/cm²)
862
Shear strength radial 12%MC (kgf/cm²)
163
Janka hardness (side) 12%MC (kgf)
1171
Janka hardness (end grain) 12%MC (kgf)
1418
Workability
Sawing
Sawing of this species is reportedly fair to difficult.
Planing
Planing is reported to be easy.
Turning
30
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, bridges, poles, paling, HOUSING GENERAL, flooring, FURNITURE AND CABINETS, common furniture, TURNING, TOOLS, tool handles, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Bridges
- 2 - 25 madeiras da amazonia de valor comercial, caracterizacao, macroscopica, usos comuns e indices qualificativos
Poles
- 3 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas do genipapo (Genipa americana)
Paling Fence Pickets
- 4 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas da bicuiba
General Housing
- 10 - Silica in Timbers
Flooring
- 14 - Handbook of Hardwoods
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Furniture, Common
- 23 - Handbook of Hardwoods
Turning
- 30 - Embassy of Honduras in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
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
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