Timbers of Kerala

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Scientific Name  Hymenodictyon excelsum (roxb.) Wall.
Trade Name  Kuthan
Local Name  Vella-Kadambu, Peruntholi
Family  Rubiaceae
Tree Size  Medium
Tree Height ( m )  15 -
Tree Diameter ( cm )  60 -
Tree Distribution  Southern moist mixed deciduous and moist teak bearing forests
Sapwood-Heartwood Distinction  Not distinct
Sapwood Colour  White to light yellowish or brownish-grey
Heartwood Colour  White to light yellowish or brownish-grey
Hardness  Soft
Specific Gravity Based on Weight Over-dry and Volume Green 
Weight  Light
Weight(Kg)/cubic meter at 12% Moisture Content  510 -
Texture  Medium to coarse
Grain  Straight
Growth Rings  Fairly distinct
Porosity  Diffuse porous
Vessel Size  Large to medium
Vessel Arrangement  Rarely solitary, usually in radial multiples of 2-4 or in clusters
Vessel Diameter   -
Vessel Element Lenght  -
Pit Outline 
Pit Size 
Vessel Ray Pitting 
Ray Nature  Moderately broad, fairly close spaced
Ray Arrangement/Type 
Ray Number  -
Ray Height  -
Fibre Walls 
Fiber Length 
Modulus of Rupture in kg/cm2 (Green)  393
Modulus of Elasticity in kg/cm2 (Green)  64300
Modulus of Rupture kg/cm2 (Dry)  563
Modulus of Elasticity in kg/cm2 (Dry)  79700
Uses  Tea chests; packing cases and boxes; match boxes and splints; artificial limbs and rehabilitation aids; bobbins; cooperage; pencil slats; mathematical, engineering and drawing instruments; brushware

College of Forestry - KAU