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21 Species Booklet 2004.pdf - Guyana Forestry Commission

21 Species Booklet 2004.pdf - Guyana Forestry Commission

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TATABU<br />

Scientific name: Diplotropis purpurea<br />

Family: Papilionaceae<br />

Standard name: Sucupira<br />

Other names: Sucupira, Alcoruoque, Zwarte Kabbes<br />

Wood Appearance<br />

The heartwood is dark chocolate-brown in colour with conspicuous paler markings, giving a<br />

decorative appearance which may be enhanced on quartered surface by a stripe figure. The sapwood<br />

is whitish, sharply demarcated from the heartwood. Grain is interlocked, sometimes irregular and<br />

the texture is moderately coarse. The bole is 18-<strong>21</strong>m in length and diameter 40-60(-100) cm.<br />

Physical and Mechanical Properties<br />

A heavy, strong, durable wood possessing high strength properties. Medium shrinkage, relatively<br />

stable once dry.<br />

• Air dried density (12%) - 910kg/m 3<br />

• Bending strength (at 12%) - 156 N/mm 2<br />

• Modulus of elasticity (at 12%) - 18000 N/mm 2<br />

• Crushing strength (at 12%) - 88 N/mm 2<br />

Natural Durability<br />

Very resistant to decay even under exacting conditions of use. Highly resistant to fungi and termite<br />

attacks.<br />

Timber Processing<br />

Drying - Dries readily but slowly, without distortion or checking.<br />

Working - Difficult to work due of its high density and interlocked and irregular grain, but can be<br />

finished to a smooth surface. Turns well.<br />

Assembly - Glues well and holds nails and screws hold well.<br />

Finishing - Polishes satisfactorily after filling.<br />

Uses<br />

Has a decorative appearance and is of interest for turned work and as a veneer for inlays in high<br />

grade furniture. Suitable for exterior and interior joinery, turnery, paneling and tool handles. A very<br />

useful timber with many applications.<br />

Supplies<br />

Occurs widely but not abundantly in the <strong>Guyana</strong> forests. Regular supplies in modest quantities are<br />

available.<br />

16

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