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BACURI (Platonia insignis)
Trade Name
Bacuri
Scientific Name
Platonia insignis Mart.
Family
CLUSIACEAE
Common Names
Ussa fouka; Parcouri soufre; Parcouri jaune; Paracouril; Pakvri; Pakoueli; Pahoorie; Pacuru; Matoumani; Matazana; Matazama; Manilparcouri; Manil; Mango mataaki; Ibacuri; Bacury-guazu; Bacuri-acu; Bacoropary; Geelhart; Pakoeli; Wild Mammee Apple; Bacury; Pakuri; Parcouri; Bacupary
Description Of The Tree
Botanical Description
It attains heights from 15 to 30 m, with a diameter at breast height between 60 to 80 cm.
Natural Habitat
Platonia insignis is found in open areas in secondary forests, rarely in primary forests. It grows in almost pure stands on a wide range of soils, but always on humid areas. It is reported to be abundant in the low Amazonas and the Marajo island.
Natural Distribution
This species occurs in the Amazonia.
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). Colored deposits in heartwood vessels. Tyloses common. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray Axial parenchyma apparent with the naked eye. Axial parenchyma in thick bands. Occasionally prismatic crystals in non-chambered axial parenchyma cells. 5 to 8 cells per parenchyma strand. Axial parenchyma bands more than 3 cells wide. Axial parenchyma bands un 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Occasionally prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogeneous rays. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Color
The heartwood is usually yellow brown to orange brown in color with grayish streaks, distinct from the yellowish white sapwood.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain is frequently straight.
Texture
Texture is usually medium to coarse.
Luster
The wood surface is described as moderate in luster.
Natural Durability
It is durable against fungi attack. This species is rated as resistant against termite attack. It is not attacked by Lyctus.
Natural durability index (1= Very high durability, 7=Vey low durability)
2
Resistance To Impregnation
It is reported to be slightly permeable to preservative solutions.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.75
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.85
Total shrinkage Tangential (Saturated to 0%MC) (%)
10.3
Total shrinkage Radial (Saturated to 0%MC) (%)
5.8
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.8
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1881
Stiffness (MOE) 12%MC (kgf/cm²)
191243
Compression parallel to fiber 12%MC (kgf/cm²)
719
Shear strength radial 12%MC (kgf/cm²)
71
Workability
Sawing
Sawmilling of this species is reportedly difficult.
Rotary Veneer Cutting
This species is interesting for slicing.
Sliced Veneer
This species is interesting for slicing.
Blunting Effect
It has a slight to moderate blunting effect on the cutting tools.
Planing
Planing operations have no difficulty or difficulties due to hardness.
Turning
30
Nailing
Pre-boring is necessary.
Gluing
The timber is reported to glue well.
Polishing
Polishing of this species is reportedly easy.
Response To Hand Tools
It responds fairly well with hand tools.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, paling, stakes posts, rails, crossarms, crossties, HOUSING GENERAL, beams, joists, boards, flooring, frames, steps, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, common veneer, TURNING, turned furniture, cutlery, TOOLS, tool handles, PACKING, heavy packing, pallets, CONTAINERS, cooperage, truck bodies, truck flooring, NAVAL CONSTRUCTION
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Paling Fence Pickets
- 4 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas da bicuiba
Stake Posts
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
Rails
- 6 - Physical and mechanical properties of Eucalyptus deglupta Blume grown in Costa Rica
Crossheads Crossarms
- 7 - Maderas latinoamericanas. II, Quercus alata Q. costaricensis y Q. eugeniaefolia
Crossties
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
- 10 - Silica in Timbers
Beams
- 11 - Prospect: The wood database
Joists
- 12 - Tropical timbers of the world. Part I-Tropical American Species
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
Frames
- 16 - Woods of the World
Steps
- 17 - Tree Conservation Database
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Furniture, Common
- 23 - Handbook of Hardwoods
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Common Veneer
- 29 - Embassy of Ecuador in Japan
Turning
- 30 - Embassy of Honduras in Japan
Turned Articles
- 32 - Embassy of Cote d`Ivoire in Japan
Knife Handles
- 33 - Embassy of Gabon in Japan
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Heavy Packing
- 47 - Arvores Brasileiras
Pallets
- 48 - The strength properties of timbers
Containers
- 50 - Properties of imported tropical woods
Cooperage
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
Truck Body
- 53 - Timbers of the New World
Truck Flooring
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
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