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GLíCIA (Glycydendron amazonicum)

Trade Name

Glícia

Scientific Name

Glycydendron amazonicum Ducke

Family

EUPHORBIACEAE

Common Names

Glícia (Brazil); Pau-De-Casca-Doce (Brazil); Mirindiba-Doce (Brazil); Gitó (Brazil)

Description Of The Tree

Botanical Description

Commercial lengths of 10 m, with average diameters from 60 to 70 cm are reported. The logs are straight and cylindrical.

Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 100 to 150 micras (small). White deposits in heartwood vessels. Tyloses common. Occasionally vessels per mm2 less than 6. Vessel-ray pits similar to interv Occasionally axial parenchyma confluent. Axial parenchyma in discontinuous tangential lines. Axial parenchyma oblique and/or sinuous. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Occasionally prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II Fibers with distinctly bordered pits.

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

Availability

Cites Status

Unrestricted

General Wood Description

Odor

Odor or taste are absent.

Color

The heartwood and sapwood are distinct. The heartwood is reddish-yellow and sapwood white color.

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

4

Grain

This timber usually has straight or wavy grain.

Texture

Texture is mostly fine to medium.

Luster

The wood luster is reported to be rather moderate.

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

2

Resistance To Impregnation

The heartwood of this species is reported to be untreatable with water soluble products.

Wood Physical Properties

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

0.66

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

0.74

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

7.6

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

4.9

Recommended Dry Kiln Schedule

BR-A

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

1.6

Wood Chemical Properties

Wood Mechanical Properties

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

1284

Stiffness (MOE) 12%MC (kgf/cm²)

152000

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

663

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

104

Shear strength radial 12%MC (kgf/cm²)

137

Janka hardness (side) 12%MC (kgf)

873

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

758

Workability

Planing

Processing is reported to be easy, but finishing is rated as bad because of torn surfaces.

Turning

30

Boring

Boring operations are easy, but with a fair finishing. Torn grain and fuzzy surfaces are reported.

Sanding

Sanding operations are rated as easy, but fuzzy surfaces can occur.

Response To Hand Tools

It is difficult to cut with hand saws.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, panelling, FURNITURE AND CABINETS, TURNING, cutlery, TOOLS, tool handles, PACKING, NAVAL CONSTRUCTION, boats, OTHER AND MUSICAL INSTRUMENTS

General Housing
  • 10 - Silica in Timbers
Paneling
  • 18 - W3TROPICOS Missouri Botanical Garden
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Turning
  • 30 - Embassy of Honduras 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)
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Shipbuilding
  • 55 - Tropical Timber Atlas of Latin America
Boats
  • 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Other & Musical Instruments
  • 63 - Madeiras do Brazil II

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