KOTIBé (Nesogordonia papaverifera)
Nombre comercial
Kotibé
Nombre científico (con autor)
Nesogordonia papaverifera R.Cap.
Familia
STERCULIACEAE
Nombres Comunes
Kotibe (Côte d`Ivoire); Kissinhungo (Angola); Danta (United Kingdom); Kissnhungo (Angola); Kondofindo (Zaire); Aborbora (Gabon); Naouya (Central African Republic); Ovoui (Cameroon); Ovoe (Cameroon); Otutu (Nigeria); Danta (Ghana); Epro (Ghana); Akumaba (Ghana); Abumana (Ghana); Naouya (Angola); Owoe (Cameroon); Kotibe
Nombres científicos sinónimos (con autores)
Cistanthera papaverifera A. Chev.
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The tree reaches a height of 30 to 40 m. The bole is usually clear, cylindrical, straight to 13 to 26 m in length. The trunk diameter attains 80 to 120 cm over the short buttresses.
Hábitat natural
Nesogordonia fouassieri grows in dense stands, commonly in areas where savanna has been replaced by forest. It is found in mixed and dry deciduous forests and in transitional forests.It is known or inferred that the harvesting of specimens from the wild f
Distribución natural
West Africa, from Sierra Leone to Cameroon and Northern Gabon.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 to 150 micras (small). Non-vestured pits. Vessels per mm2 more than 20 (very abundant). Simple perforation plates. Vessel-ray pits similar to int Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Axial parenchyma storied. Prismatic crystals in short chains in chambered axial parenchyma cells. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays storied. Rays 1 to 4 seriate. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Non-septate fibers. Fibers with simple to minutely bordered pits.
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Foto macroscópica de la madera, plano radial
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Foto microscópica sección transversal de la madera
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Color
The sapwood is pale, it has a thickness of 5 cm. The heartwood is red-brown, it is clearly demarcated. The silver figure is fine.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
4
Grano
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Veta
The texture of the wood is fine.
Brillo
This wood is commonly of low luster.
Durabilidad Natural
Moderately durable to decay. Without preservative treatment, this species can be used only under risk of occasional re-humidification. It is not suited for uses with risks of permanent or long-lasting humidification. Moderately resistant to termites attack
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
3
Internal growth stresses
No residual growth stresses are found.
Contenido de sílice
Silica Content: Silica content is negligible. Amounts over 0.05% may affect wood processing. Silica Value: 0.01
Dificultad para impregnar
Difficult to treat with only a low penetration of the preservative products.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.67
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.76
Contracción Tangencial Total (Saturado hasta anhidro) (%)
7.5
Contracción Radial Total (Saturado hasta anhidro) (%)
5.1
Calendario de Secado
FR-6
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
1.5
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
1209
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
132681
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
677
Resistencia a la compresión perpendicular a la fibra CH12% (kgf/cm²)
93
Cizallamiento radial CH12% (kgf/cm²)
99
Dureza Janka (lados) CH12% (kgf)
710
Dureza Janka (extremos) CH12% (kgf)
796
TRABAJABILIDAD
Aserrado
Sawing of this species requires powerful equipment.
Corte de chapa rotativa
Suitable for slicing, also suitable for peeling if treated.
Chapa tranchada
Suitable for slicing, also suitable for peeling if treated.
Pérdida de filo_romado
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Maquinado general
It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported.
Cepillado
Moderately easy; tools must be cautiously sharpened.
Moldurado
Moderately easy; tools must be cautiously sharpened.
Torneado
30
Taladrado
Moderately easy; tools must be cautiously sharpened.
Escopleado, caja y espiga
Moderately easy; tools must be cautiously sharpened.
Clavado
Pre-boring is necessary.
Encolado
Glues well if basic gluing technical rules are followed.
Lijado
Easy to perform; it gives good results.
Sacar lustre
Can be polished without surface preparation.
Doblar al vapor
This species can be used for steam bending.
Facilidad para herramientas manuales
Working with hand tools is difficult.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, faces, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, lasts, TOOLS, tool handles, agricultural tools, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boat fins, boat oars, OTHER AND MUSICAL INSTRUMENTS, handicrafts
VIVIENDA GENERAL
- 10 - Silica in Timbers
Tablas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Pisos
- 14 - Handbook of Hardwoods
Parquet
- 15 - Empire Timbers
Marcos
- 16 - Woods of the World
Peldaños
- 17 - Tree Conservation Database
Paneles
- 18 - W3TROPICOS Missouri Botanical Garden
Accesorios de madera
- 19 - Silica in Timbers
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Muebles finos
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Gabinetes
- 24 - Empire Timbers
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
Caras
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
chapa decorativa
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Torneado
- 30 - Embassy of Honduras in Japan
artículos torneados
- 31 - Embassy of Colombia in Japan
Artículos torneados
- 32 - Embassy of Cote d`Ivoire in Japan
mangos de cuchillos
- 33 - Embassy of Gabon in Japan
Hormas zapato
- 34 - Embassy of Indonesia in Japan
HERRAMIENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Mangos agrícolas
- 44 - Atlas of Peruvian Woods
Carrocería de camión
- 53 - Timbers of the New World
Pisos de vagones_contenedores
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
CONSTRUCCIÓN NAVAL
- 55 - Tropical Timber Atlas of Latin America
botes_escuadras
- 58 - Guía de Árboles de Bolivia
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.)
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