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LAGO (Prunus grisea)

Trade Name

Lago

Scientific Name

Prunus grisea (Blume) Kalkman

Family

Rosaceae

Common Names

Nut ton (Thailand); Amongyang (Philippines); Amatogan (Philippines); Lago (Philippines)

Scientific Name Synonyms

Pygeum melanocarpum Merr. & L.M. Perry; Pygeum latifolium Miq.; Pygeum vulgare (Koehne) Merr.

Description Of The Tree

Botanical Description

It is a small to fairly large tree, up to 35 m tall. The bole is crooked or straight and cylindrical, branchless for up to 15 m, with diameters of 100 cm. Occasionally, small buttresses are reported.

Natural Habitat

Prunus species are found in primary and secondary lowland to montane forests, up to 3,700 m of altitude.

Natural Distribution

It is present in Southern Myanmar, Vietnam, Thailand, and throughout the Malaysian region; possibly also in Taiwan.

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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 coarse throughout the ray cell. Simple perforation plates. Intervessel pits small, 7 micras or less. Occasionally helical thickenings in vessel Occasionally apotracheal axial parenchyma diffuse and/or diffuse in aggregates. Paratracheal axial parenchyma scanty and/or vasicentric. Occasionally axial parenchyma aliform. 5 to 8 cells per parenchyma strand. Ray height more than 1 mm. Ray width 1 to 3 cells. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Body Fibers with simple to minutely bordered pits. Fibers very thin walled.

Availability

Cites Status

Unrestricted

General Wood Description

Color

The heartwood is reddish brown. The sapwood is light colored.

Grain

This species is typically reported to have wavy or interlocked grain.

Texture

Texture is usually fine to medium.

Natural Durability

It is perishable and prone to decay and insect damage.

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)

0.57

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

0.62

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

7.1

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

3.6

Drying Defects

Ease of Drying: Drying is rather slow and sometimes difficult to perform. Drying Defects: Risks of distortions. 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 %)

2.0

Wood Chemical Properties

Wood Mechanical Properties

Workability

Rotary Veneer Cutting

This species is reported to have good characteristics for lamination.

Sliced Veneer

This species is reported to have good characteristics for lamination.

Machining

Machining of this species is reported to be easy to fair.

REFERENCED USES

End Uses Summary

HOUSING GENERAL, FURNITURE AND CABINETS, PLYWOOD AND VENEER

General Housing
  • 10 - Silica in Timbers
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
  • 25 - Directory of Timber Trade Malaysia

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