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JENITRI/QUANDONG (Elaeocarpus angustifolius)

Trade Name

Jenitri/Quandong

Scientific Name

Elaeocarpus angustifolius Blume

Family

ELAEOCARPACEAE

Common Names

Mun dong (Thailand); Indian oil-fruit; Ganitri (Indonesia); Sima (Indonesia); Changkan (Malaysia); Geniteri (Malaysia); Rijaksa (Malaysia); Mun khom (Thailand); Mamun dong (Thailand); Genitri; Bead tree

Scientific Name Synonyms

Elaeocarpus sphaericus (Garetn.) K. Schumann; Elaeocarpus novoguineensis Warb.; Elaeocarpus ganitrus Ooxb.

Description Of The Tree

Botanical Description

It is a small to medium-sized, occasionally fairly large tree up to 40 m tall. The bole is straight, cylindrical, branchless for 18 m, with diameters of 80 cm. Sometimes steep buttresses up to 3 to 5 m or, rarely, stilt roots are present.

Natural Habitat

It is often found in secondary rain forests, at low to medium altitudes. It grows in a wide range of habitats, including coastal forests and swamp forests, in ultrabasic soils.

Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Occasionally vessels in radial multiples of 4 or more common. Occasionally tyloses common. Vessels per mm2 5 to 20. Occasionally vessels per mm2 more than 20. Occasionally vessels per mm2 less than 6. Occasionally helical thickenings in ves Axial parenchyma absent or extremely rare, non visible with magnifying glass (8x). Occasionally axial parenchyma in marginal or in seemingly marginal bands. 5 to 8 cells per parenchyma strand. Occasionally axial parenchyma in narrow bands on lines up to 3 ce Rays more than 10 per mm (abundant). Occasionally larger rays more than 4 seriate. Occasionally sheath cells. Prismatic crystals in radial alignment in procumbent ray cells (chambered cells). Body ray cells procumbent with over 4 rows of upright and/or square Septate fibers present. Fibers very thin walled. Fibers with simple to minutely bordered pits.

Availability

Cites Status

Unrestricted

General Wood Description

Color

The heartwood is straw, yellowish-white to pale yellow-brown or pinkish-brown, not clearly differentiated from the white to pale gray-brown sapwood.

Grain

The grain is usually straight, sometimes shallowly interlocked.

Texture

The texture varies from very fine to moderately fine.

Luster

Luster is reported to be moderate.

Natural Durability

It is non-durable when exposed to the weather or in contact with the ground.

Natural durability index (1= Very high durability, 7=Vey low durability)

5

Resistance To Impregnation

The sapwood is permeable, the penetration of heartwood is good in some material, patchy in others.

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.48

Air-dry Density (Weight and volume at 12%MC) (g/cm³)

0.52

Total shrinkage Tangential (Saturated to 0%MC) (%)

6.8

Total shrinkage Radial (Saturated to 0%MC) (%)

1.9

Drying Defects

Ease of Drying: Seasoning is rated as moderately fast without degrade. Shrinkage during seasoning can be high.

Recommended Dry Kiln Schedule

JP-25

Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)

3.5

Wood Chemical Properties

Wood Mechanical Properties

Bending Strength (MOR),12%MC (kgf/cm²)

599

Stiffness (MOE) 12%MC (kgf/cm²)

92449

Compression parallel to fiber 12%MC (kgf/cm²)

339

Shear strength radial 12%MC (kgf/cm²)

87

Janka hardness (side) 12%MC (kgf)

222

Workability

Sawing

Cutting resistance is generally low.

Rotary Veneer Cutting

It is suitable for rotary peeling.

Sliced Veneer

It is suitable for rotary peeling.

Machining

Wood processing is reported to be easy.

Moulding

Molding operations are rather easy.

Turning

30

Finishing

Finishing behavior is good to fair.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, shutter boards, FURNITURE AND CABINETS, PLYWOOD AND VENEER, faces, cores, TURNING, PACKING, pallets, NAVAL CONSTRUCTION, boats, boat oars, OTHER AND MUSICAL INSTRUMENTS, handicrafts, matches, moldings, particleboard

General Housing
  • 10 - Silica in Timbers
Shutter Boards
  • 20 - Prospect: The wood database
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
  • 25 - Directory of Timber Trade Malaysia
Faces
  • 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Cores
  • 27 - Embassy of Brazil in Japan
Turning
  • 30 - Embassy of Honduras in Japan
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Pallets
  • 48 - The strength properties of 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
Handcraft
  • 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Matches
  • 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Molding
  • 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
Particleboard
  • 80 - Estudio Integral de la Madera para Construcción

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