BILINGA (Nauclea gilletii)
Nom commercial
Bilinga
Nom scientifique (avec auteur)
Nauclea gilletii (De Wild.) Merr.
Famille
RUBIACEAE
Noms communs (pays)
Bundui (Sierra Leone); Opepi (Nigeria); Opepe (Nigeria); Kusia (Ghana); Badi (Côte d`Ivoire); Opepi (United Kingdom); Opepe (United Kingdom); N'Gulu-Maza (Zaire); Bonkangu (Zaire); Bilinga (Gabon); Aloma (Gabon); Bilinga (Equatorial Guinea); Aloma (Equatorial Guinea); N'Gulu-Maza (Congo); Mokessé (Congo); Linzi (Congo); Kilu (Central African Republic); Akondoc (Cameroon); Kilingi (Uganda); Gulu-maza (Angola); Engolo (Angola)
Synonymes du nom scientifique (avec auteurs)
Sarcocephalus gilletii De Wild.
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 50 m. The bole is clear, unbuttressed, cylindrical, and straight, from 26 to 32 m in length. The trunk diameter attains 100 to 200 cm.
Habitat naturel
Nauclea gilletii is a widespread species. It occurs over a wide range of habitats, and is often found in pure stands.
Répartition naturelle
West, Central and East Africa, from Sierra Leone to Uganda and Angola.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Non-crystals in axial parenchyma cells. 5 to 8 cells per parenchyma strand. Rays more than 10 per mm (abundant). Rays non-storied. Rays 1 to 4 seriate. Heterogeneous rays and/or multiseriate heterogeneous rays. Non-septate fibers. Fibers with distinctly bordered pits. Vessel-fiber pits similar to vessel-ray pits in size and shape.
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Vue macroscopique du bois (plan tangentiel)
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Vue microscopique d'une section transversale du bois
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The sapwood is whitish to pale yellow, it has a thickness of 5 cm. The heartwood is yellow to orange yellow, it is clearly demarcated.
Index de Teinte (1 = Noir, 7 = Jaune clair)
5
Grain
The grain is highly and systematically interlocked.
Texture
The wood is typically medium in texture.
Durabilité naturelle
Very durable to decay; without preservative treatment. This species is especially suited for all the uses with risks of permanent or long-lasting humidification. Resistant to termites attack. Heartwood is resistant to Lyctus attacks.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
1
Résistance à l'imprégnation
Moderately easy to treat with a partial penetration of the preservative products.
PROPRIÉTÉS PHYSIQUES DU BOIS
Défauts dus au séchage
Ease of Drying: Moderately difflcult to dry.
Calendrier de séchage en séchoir recommandé
FR-10
Calendrier de séchage en séchoir
http://www.tropicaltimber.info/wp-content/uploads/2015/09/KD_French.pdf
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
OUVRABILITÉ
Sciage
Sawing of this species requires powerful equipment.
Coupe de placage de déroulage
Suitable for slicing.
Placage tranche
Suitable for slicing.
Effet d'émoussement
Slight blunting effect; ordinary tools can be used for sawing and machining.
Usinage
It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported.
Rabotage
Moderately easy; tools must be cautiously sharpened.
Moulurage
Moderately easy; tools must be cautiously sharpened.
Tournage
30
Perçage
Moderately easy; tools must be cautiously sharpened.
Mortaisage
Moderately easy; tools must be cautiously sharpened.
Clouage
Pre-boring is necessary.
Collage
Difficult to glue because of high density.
Ponçage
Difficult to obtain very good results because of interlocked grain.
Polissage
Can be polished without surface preparation.
Cintrage à la vapeur
Steam bending is difficult.
Compatibilité avec outils manuels
Working with hand tools is difficult.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boat deck, port storage
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Pouters
- 11 - Prospect: The wood database
Solives
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Planches
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Planchers
- 14 - Handbook of Hardwoods
Parquets
- 15 - Empire Timbers
Cadres
- 16 - Woods of the World
Marches
- 17 - Tree Conservation Database
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
Accessoires en bois
- 19 - Silica in Timbers
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Meubles luxe
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Armoires
- 24 - Empire Timbers
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
Ornements
- 31 - Embassy of Colombia in Japan
Ornements
- 32 - Embassy of Cote d`Ivoire in Japan
Carros_camion
- 53 - Timbers of the New World
Wagons
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
Navires_ponts
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port entreposage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
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