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PATIN (Mussaendopsis beccariana)
Trade Name
Patin
Scientific Name
Mussaendopsis beccariana Baillon
Family
RUBIACEAE
Common Names
Rambai tiang (Sumatra); Chan chu kang (Singapore); Merlimau (Malaysia); Melabira bukit (Malaysia); Rambai tiang (Indonesia); Patin (Indonesia); Selumar putih (Indonesia)
Description Of The Tree
Botanical Description
It is a medium-sized to fairly large tree up to 35 m tall. The bole is often fluted, up to 65 cm in diameter, with buttresses up to 2 m high, sometimes with stilt roots.
Natural Habitat
Mussaendopsis beccariana prefers lowland forests below 500 m of altitude, it is often found in swampy, riverine or lakeside vegetation, or in freshwater swamp forests.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Tangential diameter of vessel lumina 100 micras or less (very small). Vestured pits. Vessels per mm2 5 to 20. Occasionally helical thickenings in vessel elements present. Simple perforation plates. Vessel-ray pits similar to intervessel pit Occasionally axial parenchyma absent or extremely rare, non visible with magnifying glass (8x). Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. 3 to 4 cells per parenchyma strand. 5 t 4 to 10 rays per mm (medium). 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 marginal cells (Kribs-II). Septate fibers present. Fibers very thick walled. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is orange-yellow with orange streaks, not clearly differentiated from the sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain is usually straight.
Texture
The texture is moderately fine and even.
Natural Durability
It is durable when exposed to the weather or in contact with the ground. In contact with wet soil it lasts for at least 5 years.
Natural durability index (1= Very high durability, 7=Vey low durability)
2
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.80
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.92
Drying Defects
Drying Defects: It is liable to checking and splitting.
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1416
Stiffness (MOE) 12%MC (kgf/cm²)
175879
Compression parallel to fiber 12%MC (kgf/cm²)
825
Workability
Sawing
Wood of this species is difficult to cut.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, bridges, HOUSING GENERAL, NAVAL CONSTRUCTION, boats, boat oars, OTHER AND MUSICAL INSTRUMENTS, shingle
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
General Housing
- 10 - Silica in Timbers
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boats
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Boat Oars
- 60 - Amazonian Timbers, Characteristics and Utilization Volume II; Curuá-Una Experimental Forest Station
Shingles
- 77 - Amazonian Timbers, Characteristics and Utilization Volume I; Tapajós National Forest
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