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GLOCHIDION (Glochidion philippicum)

Trade Name

Glochidion

Scientific Name

Glochidion philippicum (Cav.) C.B. Rob.

Family

EUPHORBIACEAE

Common Names

Iba-ibaan (Philippines)

Scientific Name Synonyms

Phyllanthus kurzianus Müll. Arg.; Glochidion quercinum (Müll. Arg.) Boerl.; Glochidion philippinense (Willd.) Benth.; Glochidion formosanum Hayata; Glochidion compressicaule Kurz ex Teijsm. & Binn.; Bradleja philippinensis Willd.; Bradleja philippica Cav.

Description Of The Tree

Botanical Description

Small to occasionally medium sized trees, rarely up to 30 m tall. The bole is straight or sinuous, up to 50 cm in diameter, without buttresses.

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Wood Identification

Anatomic Description Of Wood

Tangential diameter of vessel lumina 200 micras or more (large). Tyloses common. Vessels per mm2 less than 6 (rare). Vessel-ray pits reticulate and/or foraminate. Simple perforation plates. Intervessel pits large, 10 micras or more. Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma lozenge-aliform. 3 to 4 cells per parenchyma strand. Axial parenchyma in narrow bands on lines up to 3 cells wide. 4 to 10 rays per mm (medium). Silica bodies in the ray cells. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). 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

Color

The heartwood is pale purple-gray-brown or red-brown, not clearly differentiated from the pale brown sapwood.

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

3

Grain

Straight grain is reported in this species.

Texture

Texture is mostly moderately fine and even.

Natural Durability

This species is reported to be non-durable to moderately durable. The sapwood is reported to be resistant against Lyctus.

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

6

Resistance To Impregnation

This timber is resistant to preservative treatments.

Wood Physical Properties

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

0.51

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

0.55

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

8.0

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

2.3

Drying Defects

Ease of Drying: Air seasoning is fairly rapid without serious degrade. Boards of 12 mm thick air dry in about one month. Drying Defects: The most common drying defect is bowing. Kiln Schedules: Boards of 25 mm thick can be kiln dried to 10% moisture content in 4 days, at a temperature of 79% to 33%.

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

3.5

Wood Chemical Properties

Wood Mechanical Properties

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

430

Stiffness (MOE) 12%MC (kgf/cm²)

79000

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

220

Shear strength radial 12%MC (kgf/cm²)

55

Workability

REFERENCED USES

End Uses Summary

HOUSING GENERAL, flooring, frames, FURNITURE AND CABINETS, TOOLS, tool handles, OTHER AND MUSICAL INSTRUMENTS, moldings

General Housing
  • 10 - Silica in Timbers
Flooring
  • 14 - Handbook of Hardwoods
Frames
  • 16 - Woods of the World
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Tools
  • 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
  • 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Molding
  • 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão

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