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TENTO (Ormosia coccinea)

Trade Name

Tento

Scientific Name

Ormosia coccinea (Aubl.) Jacks.

Family

LEGUMINOSAE

Common Names

Caracará (Guyana); Peonia (Puerto Rico); Tinctoria (Brazil); Peonia (Venezuela); Chocho (Colombia); Palo Yugo (Bolivia); Huairuro (Bolivia); Tento (Brazil); Huayruro (Peru); Panacoco Blanc; Kokriki; Agipau; Baarakara; Barakara; Algodoncillo

Scientific Name Synonyms

Robinia coccinea Aubl.; Ormosia subsimplex Spruce ex Benth.

Description Of The Tree

Botanical Description

The trees are reported to reach heights of 30 m, with trunk diameters ranging from 50 to 70 cm. They develop straight and cylindrical boles that are up to 20 m long.

Natural Habitat

Ormosia coccinea natural growth range is the tropical rain forests of America. It prefers well drained soils.

Natural Distribution

It grows in Central America, the Caribbean and South America down to Peru.

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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. Occasionally white deposits in heartwood vessels. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ra Axial parenchyma apparent with the naked eye. Axial parenchyma lozenge-aliform. Axial parenchyma aliform. Axial parenchyma confluent. Occasionally axial parenchyma storied. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells pe 4 to 10 rays per mm (medium). Occasionally rays and/or axial elements irregularly storied. Rays 1 to 4 seriate. Heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-II Fibers with distinctly bordered pits.

  • Wood Macro Photo Radial Plane
  • Wood Micro Photo Of Transversal Section

Availability

Cites Status

Unrestricted

General Wood Description

Odor

The wood has no specific odor or taste.

Color

The sapwood is light brown, the heartwood is yellowish red color.

COLOR INDEX (1=Black, 7=Light yellow,white)

5

Grain

The grain is mostly interlocked.

Texture

A coarse texture is reported in this species.

Luster

This species is high in luster.

Natural durability index (1= Very high durability, 7=Vey low durability)

5

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.65

Air-dry Density (Weight and volume at 12%MC) (g/cm³)

0.72

Total shrinkage Tangential (Saturated to 0%MC) (%)

7.3

Total shrinkage Radial (Saturated to 0%MC) (%)

3.8

Drying Defects

Ease of Drying: Air seasoning and kiln drying are reported to be slow. Drying Defects: It has a tendency to check, split and collapse, but without severe cupping or bowing. Risk of casehardening is reported. Kiln Schedules: This species should be dried carefully.

Recommended Dry Kiln Schedule

JUNAC-A

Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)

1.9

Wood Chemical Properties

Wood Mechanical Properties

Bending Strength (MOR),12%MC (kgf/cm²)

1124

Stiffness (MOE) 12%MC (kgf/cm²)

152221

Compression parallel to fiber 12%MC (kgf/cm²)

645

Compression perpendicular to fiber 12%MC (kgf/cm²)

71

Shear strength radial 12%MC (kgf/cm²)

98

Janka hardness (side) 12%MC (kgf)

519

Janka hardness (end grain) 12%MC (kgf)

630

Workability

Sawing

Sawmilling of this species is reportedly easy.

Rotary Veneer Cutting

This species is interesting for peeling.

Sliced Veneer

This species is interesting for peeling.

Planing

Planing of this species is fair.

Moulding

Molding operations are rather easy.

Boring

Boring operations are fair.

Nailing

Good nail-holding properties.

Gluing

Gluing behavior is reportedly good.

REFERENCED USES

End Uses Summary

EXTERIOR GENERAL, bridges, poles, HOUSING GENERAL, beams, joists, boards, flooring, frames, steps, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, PACKING, heavy packing, pallets, CONTAINERS, truck bodies, truck flooring, OTHER AND MUSICAL INSTRUMENTS, handicrafts

Exterior General
  • 1 - Tabela de resultados de ensaios fisicos e mecanicos
Bridges
  • 2 - 25 madeiras da amazonia de valor comercial, caracterizacao, macroscopica, usos comuns e indices qualificativos
Poles
  • 3 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas do genipapo (Genipa americana)
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
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Heavy Packing
  • 47 - Arvores Brasileiras
Pallets
  • 48 - The strength properties of timbers
Truck Body
  • 53 - Timbers of the New World
Truck Flooring
  • 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Handcraft
  • 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)

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