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JENITRI/QUANDONG (Elaeocarpus angustifolius)

Nombre comercial

Jenitri/Quandong

Nombre científico (con autor)

Elaeocarpus angustifolius Blume

Familia

ELAEOCARPACEAE

Nombres Comunes

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

Nombres científicos sinónimos (con autores)

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

DESCRIPCIÓN DEL ÁRBOL

Descripción botánica

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.

Hábitat natural

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.

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IDENTIFICACIÓN DE LA MADERA

Descripción anatómica de la madera

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.

Disponibilidad

Status de protección por CITES

Unrestricted

DESCRIPCIÓN GENERAL DE LA MADERA

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.

Grano

The grain is usually straight, sometimes shallowly interlocked.

Veta

The texture varies from very fine to moderately fine.

Brillo

Luster is reported to be moderate.

Durabilidad Natural

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

Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)

5

Dificultad para impregnar

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

PROPIEDADES FÍSICAS DE LA MADERA

Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)

0.48

Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)

0.52

Contracción Tangencial Total (Saturado hasta anhidro) (%)

6.8

Contracción Radial Total (Saturado hasta anhidro) (%)

1.9

Defectos por secado

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

Calendario de Secado

JP-25

Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)

3.5

PROPIEDADES QUÍMICAS DE LA MADERA

PROPIEDADES MECÁNICAS DE LA MADERA

Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)

599

Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)

92449

Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)

339

Cizallamiento radial CH12% (kgf/cm²)

87

Dureza Janka (lados) CH12% (kgf)

222

TRABAJABILIDAD

Aserrado

Cutting resistance is generally low.

Corte de chapa rotativa

It is suitable for rotary peeling.

Chapa tranchada

It is suitable for rotary peeling.

Maquinado general

Wood processing is reported to be easy.

Moldurado

Molding operations are rather easy.

Torneado

30

Acabado

Finishing behavior is good to fair.

Usos Reportados

USOS FINALES (RESUMEN)

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

VIVIENDA GENERAL
  • 10 - Silica in Timbers
Persianas
  • 20 - Prospect: The wood database
MUEBLES Y GABINETES
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
TABLEROS Y CHAPAS
  • 25 - Directory of Timber Trade Malaysia
Caras
  • 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Almas
  • 27 - Embassy of Brazil in Japan
Torneado
  • 30 - Embassy of Honduras in Japan
PALLETS_EMBALAJES
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Pallets
  • 48 - The strength properties of timbers
CONSTRUCCIÓN NAVAL
  • 55 - Tropical Timber Atlas of Latin America
Botes
  • 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Botes_remos
  • 60 - Amazonian Timbers, Characteristics and Utilization Volume II; Curuá-Una Experimental Forest Station
artesanía
  • 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Cerillas
  • 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
Molduras
  • 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
Tablero de partículas
  • 80 - Estudio Integral de la Madera para Construcción

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