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PAUJILRURO (Pterygota amazonica)
Nombre comercial
Paujilruro
Nombre científico (con autor)
Pterygota amazonica L.O. Williams ex Dorr
Familia
STERCULIACEAE
Nombres Comunes
Paujilruro (Perú); Paujilruro Blanco (Perú)
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The trees are reported to reach heights of 40 m, with trunk diameters ranging from 60 to 80 cm. The boles are straight and cylindrical up to two thirds of the total height. It presents medium sized buttresses.
Hábitat natural
Pterygota amazonica grows in the well drained tropical rain forests of Perú. It prefers non inundable, well drained areas.
Distribución natural
It is found in Perú in the departments of Huanuco, Ucayali, Loreto, Madre de Dios, San Martin and Cerro de Pasco.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. I Axial parenchyma apparent with the naked eye. Axial parenchyma in thick bands. Axial parenchyma storied. Prismatic crystals in non-chambered axial parenchyma cells. 3 to 4 cells per parenchyma strand. Axial parenchyma bands more than 3 cells wide. Axial parench Rays less than 4 per mm (rare). Rays less than 4 per mm (rare). Larger rays width 0. 1 mm or more and 2 mm or more in height. Rays non-storied. Larger rays more than 4 seriate. Prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogen Fibers with simple to minutely bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Olor
It has no discernible odor or taste.
Color
The sapwood is not differentiated, the heartwood is pale yellow color.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
6
Grano
Straight grain is reported in this species.
Veta
Medium texture is reported in this species.
Brillo
This wood is frequently moderate in luster.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
6
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.62
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.69
Contracción Tangencial Total (Saturado hasta anhidro) (%)
9.3
Contracción Radial Total (Saturado hasta anhidro) (%)
4.2
Defectos por secado
Ease of Drying: Air seasoning is reported to be rapid. Drying Defects: Risk of checking and cupping is reported.
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
2.2
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
859
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
146000
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
441
Resistencia a la compresión perpendicular a la fibra CH12% (kgf/cm²)
97
Cizallamiento radial CH12% (kgf/cm²)
110
Dureza Janka (lados) CH12% (kgf)
620
TRABAJABILIDAD
Aserrado
Sawing of this wood is reported to be fair to difficult.
Cepillado
Planing operations are reported to be fair.
Moldurado
Molding is reported to be easy.
Taladrado
Boring operations are reported to be fair.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, FURNITURE AND CABINETS
VIVIENDA GENERAL
- 10 - Silica in Timbers
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
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