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SEGODERE (Pseudocedrela kotschyi)

Trade Name

Segodere

Scientific Name

Pseudocedrela kotschyi Harms

Family

MELIACEAE

Common Names

Lampo (Mali); Segodere (Burkina Faso)

Scientific Name Synonyms

Pseudocedrella chevalieri C.DC.; Cedrela kotschyi Schweinf.

Description Of The Tree

Botanical Description

The tree reaches a height of 13 to 23 m, with trunk diameters from 50 to 130 cm. The bole may be up to 8 m in length.

Natural Habitat

Pseudocedrela kotschyi is found in the savanna forests. It is often gregarious.

Non Timber Uses

Contains some resins or extracts which could pose problems when machining or finishing.

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Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 to 150 micras (small). Brown-colored deposits in heartwood vessels. Non-vestured pits. Vessels per mm2 6 to 10 (medium). Simple perforation plate Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Occasionally axial parenchyma storied. Prismatic crystals in non-chambered axial parenchyma cells. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Non-septate fibers. Fibers with simple to minutely bordered pits.

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

Availability

Cites Status

Unrestricted

General Wood Description

Odor

Slightly scented.

Color

The sapwood is pale brown. The heartwood is red-brown, it is clearly demarcated.

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

2

Grain

Straight or highly interlocked, sometimes with an influence on further processing operations.

Texture

The wood is typically medium in texture.

Luster

Luster is reported to be low.

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)

0.78

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

0.88

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

6.1

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

3.8

Drying Defects

Ease of Drying: Drying is rather slow and sometimes difficult to perform. Drying Defects: Risks of distortions. Kiln Schedules: The kiln schedule has been tested.

Recommended Dry Kiln Schedule

FR-6

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

1.6

Wood Chemical Properties

Wood Mechanical Properties

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

1135

Stiffness (MOE) 12%MC (kgf/cm²)

133425

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

687

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

95

Shear strength radial 12%MC (kgf/cm²)

93

Janka hardness (side) 12%MC (kgf)

980

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

1029

Workability

Sawing

Sawing of this species requires powerful equipment.

Rotary Veneer Cutting

Suitable for veneering.

Sliced Veneer

Suitable for veneering.

Blunting Effect

Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.

Machining

It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported. It is recommended to use special tools for cutting.

Planing

Moderately easy; tools must be cautiously sharpened.

Moulding

Moderately easy; tools must be cautiously sharpened.

Turning

30

Boring

Moderately easy; tools must be cautiously sharpened.

Mortising

Moderately easy; tools must be cautiously sharpened.

Nailing

Pre-boring is necessary.

Gluing

Difficult to glue because of high density.

Sanding

Difficult to obtain very good results because of interlocked grain.

Polishing

Can be polished without surface preparation.

Response To Hand Tools

Working with hand tools is difficult.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, shutter boards, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, lasts, CONTAINERS, cooperage, truck bodies, truck flooring, NAVAL CONSTRUCTION, boats, boat hulls, boat deck, port pillar, OTHER AND MUSICAL INSTRUMENTS, handicrafts, cigar boxes

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
Parquet
  • 15 - Empire Timbers
Frames
  • 16 - Woods of the World
Steps
  • 17 - Tree Conservation Database
Paneling
  • 18 - W3TROPICOS Missouri Botanical Garden
Fittings
  • 19 - Silica in Timbers
Shutter Boards
  • 20 - Prospect: The wood 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
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
Lasts
  • 34 - Embassy of Indonesia in Japan
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
Boats
  • 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Boat Hulls
  • 57 - Estadísticas de Aprovechamiento, Exportación y comercialización Nacional de Productos Forestales
Boat Decking
  • 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port Pillar
  • 61 - Manual de Diseño para Maderas del Grupo Andino
Other & Musical Instruments
  • 63 - Madeiras do Brazil II
Handcraft
  • 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Cigar Box
  • 68 - Contribucion al conocimiento de la resistencia mecanica de la madera de peumo

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