< Back PAUJILRURO (Pterygota amazonica) Print Friendly View
PAUJILRURO (Pterygota amazonica)
Trade Name
Paujilruro
Scientific Name
Pterygota amazonica L.O. Williams ex Dorr
Family
STERCULIACEAE
Common Names
Paujilruro (Peru); Paujilruro Blanco (Peru)
Description Of The Tree
Botanical Description
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.
Natural Habitat
Pterygota amazonica grows in the well drained tropical rain forests of Peru. It prefers non inundable, well drained areas.
Natural Distribution
It is found in Peru in the departments of Huanuco, Ucayali, Loreto, Madre de Dios, San Martin and Cerro de Pasco.
Wood Identification
Anatomic Description Of Wood
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.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
It has no discernible odor or taste.
Color
The sapwood is not differentiated, the heartwood is pale yellow color.
COLOR INDEX (1=Black, 7=Light yellow,white)
6
Grain
Straight grain is reported in this species.
Texture
Medium texture is reported in this species.
Luster
This wood is frequently moderate in luster.
Natural durability index (1= Very high durability, 7=Vey low durability)
6
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.62
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.69
Total shrinkage Tangential (Saturated to 0%MC) (%)
9.3
Total shrinkage Radial (Saturated to 0%MC) (%)
4.2
Drying Defects
Ease of Drying: Air seasoning is reported to be rapid. Drying Defects: Risk of checking and cupping is reported.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.2
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
859
Stiffness (MOE) 12%MC (kgf/cm²)
146000
Compression parallel to fiber 12%MC (kgf/cm²)
441
Compression perpendicular to fiber 12%MC (kgf/cm²)
97
Shear strength radial 12%MC (kgf/cm²)
110
Janka hardness (side) 12%MC (kgf)
620
Workability
Sawing
Sawing of this wood is reported to be fair to difficult.
Planing
Planing operations are reported to be fair.
Moulding
Molding is reported to be easy.
Boring
Boring operations are reported to be fair.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, FURNITURE AND CABINETS
General Housing
- 10 - Silica in Timbers
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Please Provide Information To View Producer Information