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ANONGO (Turpinia ovalifolia)

Trade Name

Anongo

Scientific Name

Turpinia ovalifolia Elmer

Family

STAPHYLEACEAE

Common Names

Tigatbo (Philippines); Balay balayan (Philippines); Anongo (Philippines)

Scientific Name Synonyms

Turpinia trifoliata Ridley; Turpinia lucida Nakai

Description Of The Tree

Botanical Description

It is a small to medium-sized tree growing to a height of 20 m or more and 40 cm in diameter. The bole is short, forking low from the ground. The buttresses are low, rounded.

Natural Habitat

Turpinia ovalifolia is found in evergreen primary and secondary lowland to montane rain forests, up to 2,000 m of altitude.

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Wood Identification

Anatomic Description Of Wood

Vessels per mm2 5 to 20. Wood diffuse porous. Tangential diameter of vessel lumina 100 to 200 micras. Vessel-ray pits reticulate and/or foraminate. Vessel-ray pits similar to intervessel pits in size and shape. Intervessel pits medium, 7 to 10 micras. Occasiona Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma confluent unilateral paratracheal. 3 to 4 cells per parenchyma strand. Ray height more than 1 mm. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Occasionally body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Homogeneous rays and/or sub-homogeneous rays (all ray cells procum Fibers with simple to minutely bordered pits. Non-septate fibers.

Availability

Cites Status

Unrestricted

General Wood Description

Color

The heartwood is whitish-yellow, not clearly differentiated from the sapwood.

Grain

The grain is usually straight.

Texture

The texture is typically fine to medium.

Natural Durability

The heartwood is susceptible to dry-wood termites and blue stain fungi.

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)

0.36

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

0.39

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

5.2

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

2.8

Drying Defects

Ease of Drying: Drying is easy; it can be performed without any problem. Drying Defects: No particular risks of drying defects, subject to normal drying conditions. Kiln Schedules: Schedule proposed as a reference by comparison with well known species taking into account to the general technological behavior of this species.

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

1.9

Wood Chemical Properties

Wood Mechanical Properties

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

676

Stiffness (MOE) 12%MC (kgf/cm²)

72909

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

330

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

56

Shear strength radial 12%MC (kgf/cm²)

74

Workability

REFERENCED USES

End Uses Summary

FURNITURE AND CABINETS, TOOLS, PACKING, OTHER AND MUSICAL INSTRUMENTS, paper

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.
Packing
  • 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Paper
  • 82 - Compilation of Data on the Mechanical Properties of Foreign woods (Part 2) Central and South America.

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