MEMPISANG (Alphonsea javanica)
Trade Name
Mempisang
Scientific Name
Alphonsea javanica Scheff.
Family
ANNONACEAE
Common Names
Karai (Sabah); Denralia wone (Sumatra); Banitan batu (Sumatra); Langolia mateote (Sumatra)
Scientific Name Synonyms
Alphonsea ceramica R. Scheffer.
Description Of The Tree
Botanical Description
It is a small to medium-sized tree up to 35 m tall and 57 cm in diameter. The bark surface is smooth.
Natural Distribution
This species is common in central Java.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Tangential diameter of vessel lumina 100 micras or less (very small). Occasionally vessels with colored deposits. Vessels per mm2 5 to 20. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel Occasionally paratracheal axial parenchyma scanty and/or vasicentric. 3 to 4 cells per parenchyma strand. Axial parenchyma in narrow bands on lines up to 3 cells wide. 4 to 10 rays per mm (medium). Ray height more than 1 mm. Larger rays more than 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Occasionally oil and/or mucilage cells associated with the axial and/or ray parenchyma (idioblas 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 not clearly differentiated from the heartwood, which is light yellowish-brown.
COLOR INDEX (1=Black, 7=Light yellow,white)
6
Grain
The grain is usually straight.
Texture
The wood is reported to have a moderately fine to rather coarse texture.
Natural Durability
The wood is non-durable when exposed to the weather. The wood should be treated with anti-stain chemicals immediately after sawing.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.70
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.79
Drying Defects
Ease of Drying: Drying is reported to be rapid without significant defects. Drying Defects: Cupping is reported when drying thin boards. Kiln Schedules: Durian wood is generally easy and rapid to kiln dry. It is recommended to air dry the timber for at least 2 weeks before kiln drying.
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1270
Stiffness (MOE) 12%MC (kgf/cm²)
152000
Compression parallel to fiber 12%MC (kgf/cm²)
569
Workability
Sawing
Wood of this species is easy to cut.
Machining
Wood processing is reported to be easy.
Planing
This species is easy to plane.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, flooring, PLYWOOD AND VENEER, SPORTS, TOOLS, tool handles, agricultural tools
General Housing
- 10 - Silica in Timbers
Flooring
- 14 - Handbook of Hardwoods
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Sports
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Agricultural Tools
- 44 - Atlas of Peruvian Woods
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