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AMESCLãO, PULGANDE (Trattinnickia burserifolia)
Trade Name
Amesclão, Pulgande
Scientific Name
Trattinnickia burserifolia Mart.
Family
BURSERACEAE
Common Names
Amesclao (Brazil); Ulu (Guyana); Pulgande (Ecuador); Grand-moni (French Guiana); Encens (French Guiana); Carano (Venezuela); Ollo (Surinam); Tingimoni (Surinam); Awaloe pisi (Surinam); Amesclão (Brazil); Sucuruberira (Brazil); Sucuruba (Brazil); Mangue (Brazil); Breu Sucuruba (Brazil); Breu Preto (Brazil); Morcegueira (Brazil); Mescla (Brazil); Breu-Sucuruba (Brazil); Breu-Preto (Brazil); Breu-Branco-Verdadeiro (Brazil); Breu (Brazil); Amescla (Brazil); Amburana-De-Cheiro (Brazil); Almecegueira (Brazil)
Description Of The Tree
Botanical Description
The trees are reported to have commercial lengths of 14 m, with trunk diameters of 45 to 80 cm in the average.
Natural Distribution
Trattinnikia trees are distributed mostly in the Amazon basin. In Brazil the genus is reported in the Sao Paulo and Amazonas states.
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). Tyloses common. Occasionally vessels per mm2 less than 6. Simple perforation plates. Vessel-ray pits coarse throughout the ray Axial parenchyma absent or extremely rare, non visible with magnifying glass (8x). Occasionally siliceous bodies in the axial parenchyma. Rays less than 4 per mm (rare). Rays commonly 2 seriate. Silica bodies in upright and/or square ray cells. Silica bodies in the ray cells. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Body ray cells procumbent with one row of uprigh Septate fibers present. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The sapwood and heartwood are not clearly demarcated, the timber is light reddish brown in color.
COLOR INDEX (1=Black, 7=Light yellow,white)
5
Grain
This species is reported to have irregular grain.
Texture
The texture of the wood is medium.
Luster
The wood is described as moderate in luster.
Natural Durability
It is reported to be moderately durable, it has a poor resistance against decay and dry wood insects but a moderate resistance against termites.
Natural durability index (1= Very high durability, 7=Vey low durability)
6
Silica Content
Silica Content: Silica presence is reported. Amounts over 0.05% may affect wood processing.
Resistance To Impregnation
The sapwood of this species is reported to be moderately permeable, with good retention of preservatives, but the heartwood is rated as impermeable.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.50
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.54
Total shrinkage Tangential (Saturated to 0%MC) (%)
7.4
Total shrinkage Radial (Saturated to 0%MC) (%)
4.5
Drying Defects
Ease of Drying: Air seasoning is reported to be rapid. Drying Defects: Slight checking and warping. Kiln Schedules: Slow drying is recommended.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.6
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
740
Stiffness (MOE) 12%MC (kgf/cm²)
106301
Compression parallel to fiber 12%MC (kgf/cm²)
438
Compression perpendicular to fiber 12%MC (kgf/cm²)
57
Shear strength radial 12%MC (kgf/cm²)
93
Janka hardness (side) 12%MC (kgf)
337
Janka hardness (end grain) 12%MC (kgf)
488
Workability
Sawing
It is easy to cut, but woolly surfaces are often obtained.
Rotary Veneer Cutting
It is interesting for peeling.
Sliced Veneer
It is interesting for peeling.
Blunting Effect
This timber has a moderate blunting effect on the cutting tools because of its silica content.
Machining
Machining operations are easy unless interlocked grain is present.
Planing
This species is rated as moderately easy to plane. It gives rough radial surfaces.
Nailing
Good nail-holding properties.
Gluing
It has a good behavior in gluing.
Finishing
Wood of this species is easy to finish.
Polishing
Polishing of this wood is easy.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, boards, flooring, steps, panelling, shutter boards, FURNITURE AND CABINETS, PLYWOOD AND VENEER, PACKING
General Housing
- 10 - Silica in Timbers
Boards
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Flooring
- 14 - Handbook of Hardwoods
Steps
- 17 - Tree Conservation Database
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Shutter Boards
- 20 - Prospect: The wood database
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
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