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PARASOLIER (Musanga cecropioides)
Nom commercial
Parasolier
Nom scientifique (avec auteur)
Musanga cecropioides R.Br.
Famille
CECROPIACEAE
Noms communs (pays)
Umbrella tree (Nigeria); Parasolier (Côte d`Ivoire); Senga (Zaire); N'senga (Zaire); Asseng (Gabon); Senga (Congo); N'senga (Congo); Asseng (Cameroon); Wunsone; Unson; Uno; Umbrella tree; Ukporwe; Ukhorube; Ufogho; Tshilombelombe; Tshilombela; Tshabi; Siang; Senga; Schirmbaum; Ro; Peindo; Otumbi; Ote; Osenge; Oro; Ojamba; Ogohen; Ofika; Odzuma; Odwumafufuo; Odwuma; Ngovui; Ngogho; N`senga; Musanga; Mulamba; Moussinga; Mouin; Loho; Lisengi; Kigere; Kaliba; Juna; Juma; Ikumbu; Ikomba; Guima; Glu; Gbawo; Ekombo; Ekomba; Egunli; Eguni; Egui; Egimamfuk; Egeun; Egbesu; Dzama; Dwuma; Djunia; Diseng; Corkwood; Congo-congo; Combo-combo; Butwiome; Bossengue; Bokuibe; Bokombo; Asseng; Assang; Assan; An`fekan; Amaya; Ajama; Agyemkama; Agoumi; Agbome; Aga umbrella tree; African corkwood; Abome; Govwi (Liberia); Doe (Liberia); N`Govoge (Sierra Leone); Parasolier
Synonymes du nom scientifique (avec auteurs)
Musanga smithii R. Br.
DESCRIPTION DE L'ARBRE
Description botanique
The tree may reach up to 30 m, with a diameter up to 120 cm. The bole is straight and slender, from 8 to 15 m long.
Habitat naturel
Musanga cecropioides is typical of secondary forests, common on old farms in closed forests.
Répartition naturelle
West, Central and East Africa, from Sierra Leone to Uganda.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Tyloses thin walled. Non-vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits lar Paratracheal axial parenchyma thin vasicentric. Occasionally prismatic crystals in non-chambered axial parenchyma cells. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Prismatic crystals in radial alignment in procumbent ray cells (chambered cells). Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Body ray cells procumbent with mostl Non-septate fibers. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The heartwood is pale yellow, pale brown or white, turning to a pale yellow-white with age, it is not clearly demarcated.
Index de Teinte (1 = Noir, 7 = Jaune clair)
7
Grain
Straight; grain has no particular influence on drying, machining and finishing qualities.
Texture
The texture of the wood is frequently coarse.
Luster
The surface of the wood is naturally low in luster.
Durabilité naturelle
Not durable; important risks of decay attacks at any processing step, from logs up to final products. It must receive preservative treatment. Sensible to termites attack. The heartwood is sensible to Lyctus attacks.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
5
Tensions internes de croissance
For this species no growth stresses are reported.
Teneur en silice
Silica Content: Negligible contents of silica are found in timber of this species. Amounts over 0.05% may affect the wood processing. Silica Value: 0
Résistance à l'imprégnation
Easy to treat with a full penetration of the preservative products using vacuum-pressure method.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.25
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.26
Retrait tangentiel total (saturé à 0%TH) (%)
6.5
Retrait radial total (saturé à 0%TH) (%)
2.3
Défauts dus au séchage
Ease of Drying: Drying is very slow and difficult to perform; defects are frequent. Drying Defects: Risks of checks and distortions.
Calendrier de séchage en séchoir recommandé
FR-2
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
2.9
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
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
347
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
58593
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
209
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
19
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
44
Dureté Janka (latérale) 12%TH (kgf)
79
Dureté Janka (extrémités) 12%TH (kgf)
138
OUVRABILITÉ
Sciage
It is easy to saw.
Coupe de placage de déroulage
Not suitable for veneering.
Placage tranche
Not suitable for veneering.
Effet d'émoussement
Slight blunting effect; ordinary tools can be used for sawing and machining.
Usinage
Machining of this species is reportedly easy.
Rabotage
Easy; no particular problems.
Moulurage
Moderately easy; tools must be cautiously sharpened.
Perçage
Moderately easy; tools must be cautiously sharpened.
Mortaisage
Moderately easy; tools must be cautiously sharpened.
Clouage
Easy to perform but low nails holding.
Collage
Glues well if basic gluing technical rules are followed.
Ponçage
Particular care is needed to avoid woolly aspect of the surface.
Polissage
Needs pre-coating.
Compatibilité avec outils manuels
No particular problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
FURNITURE AND CABINETS, common furniture, PACKING, light packing, OTHER AND MUSICAL INSTRUMENTS, door core, coffin, scale model
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Meubles ordinaire
- 23 - Handbook of Hardwoods
EMBALLAGE
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Embal_léger
- 46 - ECUADOR, Inventario y Aprovechamiento de los Bosques del Sur Ecuatoriano
âme_porte
- 76 - Descripción General y Anatómica de 105 Maderas del Grupo Andino.
Cercueils
- 78 - Amazonian Timbers for the International Market
Maquettes
- 83 - Algunas caracteristicas fisicomecanicas de la madera de tres especies de la cordillera NeoVolcanica
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