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TAUARI (Couratari stellata)
Nom commercial
Tauari
Nom scientifique (avec auteur)
Couratari stellata A.C. Sm.
Famille
LECYTHIDACEAE
Noms communs (pays)
Tauari (Brazil); Mahot; Estopeiro (Brazil); Tauari Morrão (Brazil); Tauari Amarelo (Brazil); Imbirema (Brazil)
Synonymes du nom scientifique (avec auteurs)
Couratari reticulata A.C. Sm.
DESCRIPTION DE L'ARBRE
Description botanique
The commercial lengths are reported to vary from 7 to 18 m, with diameters from 45 to 70 cm. The logs are reported to be straight and cylindrical.
Répartition naturelle
The Couratari genus is reported to be widely distributed all over tropical South America.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Vessels solitary and in short radial multiples. Occasionally tangential diameter of vessel lumina 200 micras or more. Tyloses common. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits Axial parenchyma in continuous tangential lines (included in reticulate and scalariform). 5 to 8 cells per parenchyma strand. Axial parenchyma in narrow bands on lines up to 3 cells wide. Axial parenchyma bands over 4 per mm. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Silica bodies in the ray cells. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
There is no difference between sapwood and heartwood. The timber is light yellowish brown in color.
Index de Teinte (1 = Noir, 7 = Jaune clair)
6
Grain
This species is reported to have straight grain.
Texture
The wood is mostly medium in texture.
Luster
The wood surface is described as low in luster.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
4
Résistance à l'imprégnation
C. stellata is reported to be moderately permeable, with good penetration and retention of preservatives.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.65
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.72
Retrait tangentiel total (saturé à 0%TH) (%)
7.8
Retrait radial total (saturé à 0%TH) (%)
5.8
Défauts dus au séchage
Ease of Drying: Air seasoning is reported to be rapid. Drying Defects: Slight checking and warping. Kiln Schedules: Slow drying is recommended.
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.3
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
1367
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
146000
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
705
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
118
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
131
Dureté Janka (latérale) 12%TH (kgf)
710
Dureté Janka (extrémités) 12%TH (kgf)
895
OUVRABILITÉ
Sciage
Sawing operations are rated as fair to difficult.
Rabotage
Planing operations are rated as fair, but it yields smooth surfaces.
Tournage
30
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, FURNITURE AND CABINETS, PLYWOOD AND VENEER, Decorative veneer, TURNING, cutlery, BENDING, SPORTS, table tennis, TOOLS, tool handles, PACKING, NAVAL CONSTRUCTION, OTHER AND MUSICAL INSTRUMENTS, handicrafts
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Placage tranché
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Tournage
- 30 - Embassy of Honduras in Japan
Manches de couverts
- 33 - Embassy of Gabon in Japan
Résistance à la flexion
- 35 - Embassy of Myanmar in Japan
SPORTS
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
tennis detable
- 41 - Embassy of the Philippines
OUTILS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Outils_manches
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
EMBALLAGE
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
AUTRES ET INSTRUMENTS DE MUSIQUE
- 63 - Madeiras do Brazil II
Artisanat
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
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