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BAROMALLI (Catostemma commune)

Trade Name

Baromalli

Scientific Name

Catostemma commune Sandwith

Family

BOMBACACEAE

Common Names

Bonga (Panama); Barrigudo (Brazil); Macondo (Colombia); Arenillo (Colombia); Baramani (Venezuela); Baramán (Venezuela); Baromalli (Guyana)

Description Of The Tree

Botanical Description

The trees are reported to reach heights of 30 to 35 m. The bole is cylindrical, without buttresses, up to 20 m long, with diameters of 100 cm at breast height.

Natural Habitat

Catostemma commune is found in the tropical rain forests, on well drained soils.

Natural Distribution

The natural growth range of this species is Central America and northern South America. It is reported in Panama, Guyana, Venezuela, Colombia and Brazil.

Non Timber Uses

The wood of this species presents gum streaks.

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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). Tyloses common. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits coarse throughout the ray cell. V Axial parenchyma apparent with the naked eye. Occasionally axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma in thick bands. Axial parenchyma storied. Prismatic crystals in non-chambered axial parenchyma cells. 3 to 4 cells per pare Rays less than 4 per mm (rare). Larger rays width 0. 1 mm or more and 2 mm or more in height. Rays storied. Larger rays more than 4 seriate. Occasionally prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cel Fibers with simple to minutely bordered pits.

Availability

Cites Status

Unrestricted

General Wood Description

Odor

Odor or taste are absent.

Color

The sapwood is pale yellow, the heartwood gradually turns into yellowish brown color.

Grain

The grain is reported to be straight to oblique.

Texture

A coarse texture is reported in this species.

Luster

This species has low to moderate luster.

Natural Durability

It is susceptible to decay, dry wood insects and termite attack.

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

5

Resistance To Impregnation

This timber can be impregnated fairly easily.

Wood Physical Properties

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

0.50

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

0.55

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

11.6

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

5.0

Recommended Dry Kiln Schedule

US-T6-D2; UK-E; JUNAC-A

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

2.3

Wood Chemical Properties

Wood Mechanical Properties

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

1056

Stiffness (MOE) 12%MC (kgf/cm²)

131000

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

497

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

49

Shear strength radial 12%MC (kgf/cm²)

69

Janka hardness (side) 12%MC (kgf)

345

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

454

Workability

Rotary Veneer Cutting

This species is reported to have good characteristics for slicing.

Sliced Veneer

This species is reported to have good characteristics for slicing.

Blunting Effect

It has a moderate blunting effect on the cutting tools.

Nailing

The nailing properties are good.

Gluing

Gluing of this species is easy.

Finishing

Machined surfaces are rather dull, with rough texture.

Polishing

The response of this species in polishing is fair.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, boards, frames, panelling, fittings, PLYWOOD AND VENEER, faces, cores, PACKING, OTHER AND MUSICAL INSTRUMENTS, 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
Paneling
  • 18 - W3TROPICOS Missouri Botanical Garden
Fittings
  • 19 - Silica in Timbers
Panels, Veneers
  • 25 - Directory of Timber Trade Malaysia
Faces
  • 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Cores
  • 27 - Embassy of Brazil in Japan
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Molding
  • 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão

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