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ITANGAN (Weinmannia blumei)
Trade Name
Itangan
Scientific Name
Weinmannia blumei Planch.
Family
CUNONIACEAE
Common Names
Malayan mountain ash; Antahasi (Indonesia); Ki merak (Indonesia); Antahasi (Sumatra); Gringging (Indonesia)
Scientific Name Synonyms
Weinmannia sundana Miq; Weinmannia papuana Schlechter; Weinmannia ledermannii Schlechter
Description Of The Tree
Botanical Description
It is a small to medium-sized tree up to 25 m tall. The bole is up to 60 cm in diameter, sometimes with small buttresses.
Natural Habitat
Weinmannia blumei may occur gregariously. It is found in upper montane forests.
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). Occasionally tyloses common. Vessels per mm2 more than 20 (very abundant). Intervessel pits scalariform. Vessel-ray pits reticula Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Prismatic crystals in non-chambered axial parenchyma cells. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 4 to 10 rays per mm (medium). Occasionally rays of two distinct sizes. Occasionally body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square margi Fibers with distinctly bordered pits. Crystals in fibers.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is reddish-brown, chocolate-brown or purple-gray-brown, not clearly differentiated from the paler sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain varies from straight to deeply interlocked.
Texture
The texture of the wood is very fine to fine.
Luster
Timber of this species is lustrous.
Natural Durability
The wood is non-durable to moderately durable, susceptible to termites attack. When green it is prone to decay.
Natural durability index (1= Very high durability, 7=Vey low durability)
6
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.50
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.54
Drying Defects
Ease of Drying: Drying is moderately easy; some particular care is needed. Drying Defects: Risks of checks. Kiln Schedules: The kiln schedule has been tested.
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
770
Stiffness (MOE) 12%MC (kgf/cm²)
114414
Compression parallel to fiber 12%MC (kgf/cm²)
434
Compression perpendicular to fiber 12%MC (kgf/cm²)
143
Shear strength radial 12%MC (kgf/cm²)
114
Janka hardness (side) 12%MC (kgf)
466
Janka hardness (end grain) 12%MC (kgf)
487
Workability
Machining
With care it can be worked to a good finish.
Turning
30
Finishing
With care wood of this species gives a smooth finish.
Polishing
It has a good polishing.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, beams, panelling, FURNITURE AND CABINETS, cabinets, TURNING
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Cabinet
- 24 - Empire Timbers
Turning
- 30 - Embassy of Honduras in Japan
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