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LOURO VERMELHO (Nectandra rubra)
Trade Name
Louro vermelho
Scientific Name
Nectandra rubra (Mez) C.K. Allen
Family
LAURACEAE
Common Names
Teteruma; Surinam mahogany; Laurier canelle; Laurier; Ishpingo maraco; Cirouaballi; Braloc; Bewana; Baaka; Red Wood; Louro Rosa (Brazil); Louro Mogno (Brazil); Louro Canela (Brazil); Gamela (Brazil); Canela Vermelha (Brazil); Louro Vermelho (Brazil); Louro-Tamanco (Brazil); Louro-Preto (Brazil); Louro-Freijó (Brazil); Louro (Brazil); Fruta-De-Pombo (Brazil); Grignon; Teteroma; Tetruma; Wane; Wana; Red Louro; Louro Roxo (Brazil); Grignon Rouge; Grignon Franc; Determa
Scientific Name Synonyms
Sextonia rubra (Mez) van der Werff; Ocotea rubra Mez
Description Of The Tree
Botanical Description
The trees are reported to be large, reaching heights of up to 40 m, with trunk diameters of 60 to 90 cm, up to 130 cm. The boles are straight and cylindrical, with commercial lengths of about 12 to 18 m and even 20 m. It presents small buttresses up to 1
Natural Habitat
Nectandra rubra is found in primary forests in northern Brazil and the Guyanas. It is reported to prefer sandy or loamy soils.
Natural Distribution
The species is reported to occur in the Guyanas and the lower Amazon region of Brazil.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Tangential diameter of vessel lumina 150 to 200 micras (medium). Tyloses thin walled. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits larger than the intervessel pits. Intervessel pits large, 10 micras or more Apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. 5 to 8 cells per parenchyma strand. Rays less than 4 per mm (rare). Rays 1 to 4 seriate. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Occasionally septate fibers present.
Availability
Cites Status
Unrestricted
General Wood Description
Odor
Seasoned wood has no distinctive taste or odor.
Color
The sapwood is differentiated. The heartwood is light reddish-brown with a golden sheen.
COLOR INDEX (1=Black, 7=Light yellow,white)
5
Grain
The grain is interlocked to straight. An attractive figure can be observed on quarter-sawn surfaces.
Texture
The texture is described as rather coarse.
Luster
Wood surfaces are described as highly lustrous.
Natural Durability
It is resistant to very resistant to attack by white-rot, resistant to brown-rot, and moderately resistant to dry-wood termite attack. Its resistance to marine-borers is rated as similar to that of teak.
Natural durability index (1= Very high durability, 7=Vey low durability)
2
Resistance To Impregnation
The heartwood is reported to be non-treatable.
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.57
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.63
Total shrinkage Tangential (Saturated to 0%MC) (%)
8.6
Total shrinkage Radial (Saturated to 0%MC) (%)
4.1
Recommended Dry Kiln Schedule
UK-E; US-T6-D2
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.1
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
909
Stiffness (MOE) 12%MC (kgf/cm²)
117241
Compression parallel to fiber 12%MC (kgf/cm²)
579
Compression perpendicular to fiber 12%MC (kgf/cm²)
48
Shear strength radial 12%MC (kgf/cm²)
71
Janka hardness (side) 12%MC (kgf)
321
Janka hardness (end grain) 12%MC (kgf)
313
Workability
Sawing
Sawing of this species is reported to be rather easy.
Rotary Veneer Cutting
It is interesting for slicing. For peeling thermal treatments are recommended.
Sliced Veneer
It is interesting for slicing. For peeling thermal treatments are recommended.
Blunting Effect
The wood may have slight blunting effect on cutting tools. It planes, turns, bores, moulds, and mortises rather well.
Planing
The timber is reported to respond well to most ordinary tools, with only slight blunting on cutting edges.
Turning
30
Nailing
Good to fair nail-holding properties.
Gluing
The material is reported to have very good gluing properties.
Polishing
Polishing characteristics are rated as fairly good.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, boards, frames, steps, panelling, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, faces, Decorative veneer, TURNING, lasts, BENDING, tennis rackets, SPORTS, table tennis, TOOLS, agricultural tools, PACKING, light packing, CONTAINERS, cooperage, NAVAL CONSTRUCTION, boats, boat deck, OTHER AND MUSICAL INSTRUMENTS, handicrafts, door core, moldings
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
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.
Furniture, Common
- 23 - Handbook of Hardwoods
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Faces
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Turning
- 30 - Embassy of Honduras in Japan
Lasts
- 34 - Embassy of Indonesia in Japan
Bending
- 35 - Embassy of Myanmar in Japan
Tennis Rackets
- 37 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Sports
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
- 41 - Embassy of the Philippines
Tools
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Agricultural Tools
- 44 - Atlas of Peruvian Woods
Packing
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Light Packing
- 46 - ECUADOR, Inventario y Aprovechamiento de los Bosques del Sur Ecuatoriano
Containers
- 50 - Properties of imported tropical woods
Cooperage
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
Shipbuilding
- 55 - Tropical Timber Atlas of Latin America
Boats
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
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.)
Door Cores
- 76 - Descripción General y Anatómica de 105 Maderas del Grupo Andino.
Molding
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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