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MUIRATINGA (Maquira coriacea)
Nombre comercial
Muiratinga
Nombre científico (con autor)
Maquira coriacea (H. Karst.) C.C. Berg
Familia
MORACEAE
Nombres Comunes
Muiratinga (Brazil)
Nombres científicos sinónimos (con autores)
Pseudolmedia coriacea H. Karst.; Olmedia maxima Ducke; Olmedia laurina Baill.
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
Maquira coriacea trees are large, up to 40 m tall.
Hábitat natural
Maquira coriacea is reported in gallery forests in Bolivia, in a range between 200 up to 1,800 m of altitude.
Distribución natural
This species is found in the Amazon basin.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 100 to 150 micras (small). Occasionally vessels per mm2 more than 20. Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and s Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma lozenge-aliform. Occasionally axial parenchyma confluent. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Occasionally larger rays more than 4 seriate. Occasionally prismatic crystals in the ray cells. Occasionally heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumbent with mostly 2 to 4 rows of upright Occasionally septate fibers present. Fibers with simple to minutely bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Color
The heartwood is white to yellowish white in color.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
5
Grano
The grain is mostly frequently interlocked.
Veta
The wood is medium textured.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
5
Internal growth stresses
Residual stresses present in the wood may cause defects while processing the timber.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.44
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.47
Contracción Tangencial Total (Saturado hasta anhidro) (%)
6.7
Contracción Radial Total (Saturado hasta anhidro) (%)
3.4
Defectos por secado
Ease of Drying: Air seasoning is reported to be moderate. Drying Defects: Bowing and crooking are reported. Slight risk of casehardening is also reported. Kiln Schedules: Slow drying is recommended.
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
2.0
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
520
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
82539
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
387
TRABAJABILIDAD
Aserrado
Sawing operations are reported to be easy, but woolly surface may occur.
Corte de chapa rotativa
This species is interesting for peeling (at room temperature) and for slicing.
Chapa tranchada
This species is interesting for peeling (at room temperature) and for slicing.
Pérdida de filo_romado
This species has a severe blunting effect on the cutting tools due to its high silica content.
Cepillado
Special hard metal cutting tools are necessary.
Clavado
Poor nail-holding properties.
Encolado
Gluing of this species is easy.
Sacar lustre
This species is reported to be easy to polish.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, panelling, shutter boards, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING, light packing, OTHER AND MUSICAL INSTRUMENTS, handicrafts, moldings
VIVIENDA GENERAL
- 10 - Silica in Timbers
Paneles
- 18 - W3TROPICOS Missouri Botanical Garden
Persianas
- 20 - Prospect: The wood database
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
PALLETS_EMBALAJES
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Envase liviano
- 46 - ECUADOR, Inventario y Aprovechamiento de los Bosques del Sur Ecuatoriano
artesanía
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Molduras
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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