| 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 |
- |
| Perforation |
|
| 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 |