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LOURO (Ocotea neesiana)
Trade Name
Louro
Scientific Name
Ocotea neesiana (Miq.) Kosterm.
Family
LAURACEAE
Common Names
Louro (Brazil)
Scientific Name Synonyms
Oreodaphne florulenta Meisn.; Ocotea florulenta (Meisn.) Mez; Nectandra neesiana Miq.
Description Of The Tree
Botanical Description
The trees are reported to have commercial lengths of 12 m, with trunk diameters of 70 cm in the average.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Vessels solitary and in short radial multiples. Occasionally tangential diameter of vessel lumina 200 micras or more. Tangential diameter of vessel lumina 200 micras or more (large). Tyloses common. Vessels per mm2 10 to 20 (abundant). Occa Paratracheal axial parenchyma scanty and/or vasicentric. Occasionally axial parenchyma confluent. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Oil and/or mucilage cells at marginal cells of ray parenchyma. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Septate fibers present. Fibers with simple to minutely bordered pits.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
It has a strong pleasant smell.
Color
The wood is slightly differentiated. The heartwood is yellowish brown or pale brown.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain is mostly interlocked.
Texture
This wood has a somewhat medium texture.
Luster
Wood luster is reported to be rather high.
Resistance To Impregnation
It is resistant to preservative treatment.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.63
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.70
Total shrinkage Tangential (Saturated to 0%MC) (%)
7.8
Total shrinkage Radial (Saturated to 0%MC) (%)
3.6
Drying Defects
Ease of Drying: Air drying is rated as moderate. Drying Defects: Slight 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)
1101
Stiffness (MOE) 12%MC (kgf/cm²)
121000
Compression parallel to fiber 12%MC (kgf/cm²)
612
Compression perpendicular to fiber 12%MC (kgf/cm²)
73
Shear strength radial 12%MC (kgf/cm²)
127
Janka hardness (side) 12%MC (kgf)
503
Janka hardness (end grain) 12%MC (kgf)
458
Workability
Sawing
Sawing of this species is easy.
Machining
It is easy to machine.
Planing
Planing operations are rated as easy, but very bad finishing is reported because of torn surfaces.
Turning
30
Gluing
Gluing of this species is easy.
Sanding
Sanding is rated as good, with fair finishing because of fuzzy surfaces.
Finishing
The response of this species in finishing is fair.
Response To Hand Tools
It is reported to be moderately difficult to cut with hand tools.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, beams, joists, boards, flooring, frames, steps, panelling, FURNITURE AND CABINETS, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, TOOLS, tool handles, agricultural tools, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boat deck, OTHER AND MUSICAL INSTRUMENTS, handicrafts, axle, yoke
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
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Turning
- 30 - Embassy of Honduras in Japan
Ornaments
- 31 - Embassy of Colombia 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)
Agricultural Tools
- 44 - Atlas of Peruvian Woods
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
Boat Decking
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Handcraft
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Axles
- 73 - Handbook of Hardwoods
Yokes
- 74 - World Timbers, Vol.2, North and South America
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