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MEMINA (Pimelodendron amboinicum)
Trade Name
Memina
Scientific Name
Pimelodendron amboinicum Hassk.
Family
EUPHORBIACEAE
Common Names
Pokopokor (Indonesia); Pamum (Indonesia); Mamina (Indonesia)
Scientific Name Synonyms
Pimelodendron papuanum Warb; Daphniphyllum conglutinosum Hemsl.
Description Of The Tree
Botanical Description
It is an evergreen, dioecious, small to medium-sized tree up to 30 m tall. The bole is branchless for up to 15 m, with diameters of 80 cm, often fluted at base.
Natural Habitat
Pimelodendron amboinicum grows scattered in primary lowland to submontane evergreen rain forests up to 1,800 m of altitude. It is often found on sites where natural disturbances have occurred.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Occasionally vessels in radial multiples of 4 or more common. Tangential diameter of vessel lumina 100 micras or less (very small). Occasionally tyloses common. Vessels per mm2 5 to 20. Vessels per mm2 less than 6 (rare). Simple perforation Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Occasionally prismatic crystals in non-chambered axial parenchyma cells. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. Over 9 cel Rays more than 10 per mm (abundant). Ray height more than 1 mm. Occasionally silica bodies in the ray cells. Body ray cells procumbent with over 4 rows of upright and/or square marginal cells (Kribs-I). Occasionally body ray cells procumbent with mostly 2 to Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is cream, pale yellow-brown or gray-white, not clearly differentiated from the sapwood.
Grain
It has straight grain.
Texture
Texture of this species is moderately fine and even.
Natural Durability
It has very little or no natural resistance to decay when in contact with the ground.
Natural durability index (1= Very high durability, 7=Vey low durability)
5
Resistance To Impregnation
The timber is reported to respond very well to preservative treatment.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.60
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.66
Total shrinkage Tangential (Saturated to 0%MC) (%)
8.1
Total shrinkage Radial (Saturated to 0%MC) (%)
3.9
Drying Defects
Ease of Drying: Boards of X. fusca 13 mm and 38 mm thick take respectively 3 and 5 months to air dry. Drying Defects: There is moderate risk of cupping, bowing and stain.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.1
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1009
Stiffness (MOE) 12%MC (kgf/cm²)
131808
Compression parallel to fiber 12%MC (kgf/cm²)
550
Shear strength radial 12%MC (kgf/cm²)
117
Workability
Sawing
Sawing of this species is moderately easy.
Rotary Veneer Cutting
Lamination of this species is possible.
Sliced Veneer
Lamination of this species is possible.
Machining
Machining properties are fair when the stock is green, but it is rated as poor when air-dry.
Substitute Species
It is considered as a possible substitute for Ramin (Gonystylus spp.)
REFERENCED USES
End Uses Summary
HOUSING GENERAL, FURNITURE AND CABINETS, PLYWOOD AND VENEER, TOOLS, tool handles, OTHER AND MUSICAL INSTRUMENTS, moldings
General Housing
- 10 - Silica in Timbers
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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