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DWABOK (Kydia calycina)
Nom commercial
Dwabok
Nom scientifique (avec auteur)
Kydia calycina Roxb.
Famille
MALVACEAE
Noms communs (pays)
Pulu (India); Pula (India); Chourpultea (India); Magan (Myanmar); Dwalok (Myanmar); Dwabote (Myanmar); Baluma-shaw (Myanmar); Kuhuka (India); Dwabok (Myanmar)
Synonymes du nom scientifique (avec auteurs)
Kydia roxburghiana Wight; Kydia fraterna Roxb.
DESCRIPTION DE L'ARBRE
Description botanique
Small to medium sized tree up to 12 to 15 m tall, with a clear bole up to 6 m long. The diameter may be up to 100 cm.
Habitat naturel
Kydia calycina is reported to grow in a wide range of habitats, but arid regions. It is common in the deciduous forests of India and the sub-Himalayan tract. In China it is found at altitudes between 500 to 1,600 m
Répartition naturelle
It is grows widely distributed in India and Myanmar, also reported in southern China and northern Vietnam.
IDENTIFICATION DU BOIS
Description anatomique du bois
Occasionally wood semi-ring porous and/or ring porous. Occasionally tangential diameter of vessel lumina 200 micras or more. Occasionally tangential diameter of vessel lumina 100 micras or less. Vestured pits. Occasionally vessels per mm2 more than 20. Occasio Occasionally paratracheal axial parenchyma scanty and/or vasicentric. Occasionally axial parenchyma aliform. Axial parenchyma confluent. Two cells per parenchyma strand. 3 to 4 cells per parenchyma strand. Occasionally 5 to 8 cells per parenchyma strand. Occasi Rays exclusively uniseriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Occasionally body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Septate fibers present. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The wood is described as brownish grey to whitish grey. The heartwood is sharply differentiated from the softwood.
Index de Teinte (1 = Noir, 7 = Jaune clair)
6
Grain
The grain is usually straight.
Texture
The texture of this species is reported to vary from medium to coarse.
Luster
The wood is lustrous when quarter sawn.
Durabilité naturelle
This timber is reportedly non resistant to biological attack.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
5
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.33
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.35
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
483
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
72700
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
237
OUVRABILITÉ
Coupe de placage de déroulage
It is suitable for plywood and veneer production.
Placage tranche
It is suitable for plywood and veneer production.
Usinage
It is easy to work, giving a good surface.
Compatibilité avec outils manuels
It is easy to work with hand tools.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, PLYWOOD AND VENEER, TOOLS, agricultural tools, PACKING, light packing, NAVAL CONSTRUCTION, boat oars, OTHER AND MUSICAL INSTRUMENTS, pencil, matches
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
OUTILS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Outils_agric
- 44 - Atlas of Peruvian Woods
EMBALLAGE
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Embal_léger
- 46 - ECUADOR, Inventario y Aprovechamiento de los Bosques del Sur Ecuatoriano
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
Navires_rames
- 60 - Amazonian Timbers, Characteristics and Utilization Volume II; Curuá-Una Experimental Forest Station
Crayon
- 67 - Maderas latinoamericanas. VIII, Calophyllum brasilense, Couratari panamensis, Dendropanax arboreum y Bombacopsis sessilis
Allumette
- 71 - Proprietes physiques et mecaniques des bois tropicaux, premier supplement
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