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SUCUPIRA PRETA (Diplotropis martiusii)

Trade Name

Sucupira Preta

Scientific Name

Diplotropis martiusii Benth.

Family

LEGUMINOSAE

Common Names

Sucupira-Parda (Brazil); Chontaquiro (Peru)

Scientific Name Synonyms

Dibrachion riparium Spruce ex Benth.; Bowdichia martiusii (Benth.) Ducke

Description Of The Tree

Botanical Description

This tree is reported to be of medium size, attaining heights of 20 m in the average. The boles are clear to lengths of about 14 m, with diameters between 60 to 70 cm.

Natural Habitat

Diplotropis martiusii is widespread in tropical South America. It prefers non-inundable areas in primary and secondary forests.

Natural Distribution

The species is reported to occur in northern tropical South America, down to Peru. In Peru it is reported in Yurimaguas, Tamishiyacu, Requena and Pucallpa.

Wood Identification

Anatomic Description Of Wood

Wood diffuse porous. Vessels solitary and in short radial multiples. Occasionally tangential diameter of vessel lumina 200 micras or more. Occasionally white deposits in heartwood vessels. Occasionally vessels per mm2 less than 6. Simple perforation plates. Ves Occasionally axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma lozenge-aliform. Axial parenchyma confluent. Occasionally prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Occasionally heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Fibers with simple to minutely bordered pits.

  • Wood Macro Photo Radial Plane
  • Wood Micro Photo Of Transversal Section

Availability

Cites Status

Unrestricted

General Wood Description

Odor

Odor and taste are reported to be indistinct.

Color

The sapwood is differentiated. The heartwood is dark brown to chocolate brown in color.

COLOR INDEX (1=Black, 7=Light yellow,white)

4

Grain

Grain is reported to be typically interlocked, producing a very fine silver figure.

Texture

The wood is coarse-textured.

Natural Durability

It is very durable against decay and insects attack.

Natural durability index (1= Very high durability, 7=Vey low durability)

1

Silica Content

Silica Content: A negligible content of 0.04 % of silica is reported. Silica Value: 0.04

Resistance To Impregnation

This timber responds poorly to preservative treatment.

Wood Physical Properties

Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)

0.81

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

0.93

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

6.1

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

4.1

Drying Defects

Ease of Drying: Drying is reported as moderately rapid. Drying Defects: Risk of checking, cupping and twisting. Casehardening is also reported.

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

1.5

Wood Chemical Properties

Wood Mechanical Properties

Workability

Sawing

Sawing of this species is easy. Stellite tipped band saws are recommended.

Rotary Veneer Cutting

The timber is reported to be suitable for slicing into decorative veneers.

Sliced Veneer

The timber is reported to be suitable for slicing into decorative veneers.

Blunting Effect

The wood is reported to have moderate dulling effect on cutting edges.

Planing

Sucupira is hard and typically contains interlocked grain, factors which are reported to combine to make it a rather difficult wood to plane and work in most woodworking operations.

Moulding

Molding operations are rated as fair.

Turning

30

Boring

Boring operations are fair.

Nailing

The wood is difficult to nail, and requires pre-boring.

Finishing

The wood is reported to finish well after filling.

REFERENCED USES

End Uses Summary

EXTERIOR GENERAL, bridges, poles, paling, stakes posts, rails, crossarms, crossties, HOUSING GENERAL, beams, joists, boards, flooring, frames, steps, FURNITURE AND CABINETS, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, TOOLS, tool handles, agricultural tools, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boat deck, OTHER AND MUSICAL INSTRUMENTS, yoke

Exterior General
  • 1 - Tabela de resultados de ensaios fisicos e mecanicos
Bridges
  • 2 - 25 madeiras da amazonia de valor comercial, caracterizacao, macroscopica, usos comuns e indices qualificativos
Poles
  • 3 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas do genipapo (Genipa americana)
Paling Fence Pickets
  • 4 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas da bicuiba
Stake Posts
  • 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
Rails
  • 6 - Physical and mechanical properties of Eucalyptus deglupta Blume grown in Costa Rica
Crossheads Crossarms
  • 7 - Maderas latinoamericanas. II, Quercus alata Q. costaricensis y Q. eugeniaefolia
Crossties
  • 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
General Housing
  • 10 - Silica in Timbers
Beams
  • 11 - Prospect: The wood database
Joists
  • 12 - Tropical timbers of the world. Part I-Tropical American Species
Boards
  • 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Flooring
  • 14 - Handbook of Hardwoods
Frames
  • 16 - Woods of the World
Steps
  • 17 - Tree Conservation Database
Furniture Cabinets
  • 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Panels, Veneers
  • 25 - Directory of Timber Trade Malaysia
Decorative veneer
  • 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Turning
  • 30 - Embassy of Honduras in Japan
Ornaments
  • 31 - Embassy of Colombia in Japan
Turned Articles
  • 32 - Embassy of Cote d`Ivoire in Japan
Knife Handles
  • 33 - Embassy of Gabon in Japan
Tools
  • 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Tool Handles
  • 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
Agricultural Tools
  • 44 - Atlas of Peruvian Woods
Truck Body
  • 53 - Timbers of the New World
Truck Flooring
  • 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
Shipbuilding
  • 55 - Tropical Timber Atlas of Latin America
Boat Decking
  • 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Yokes
  • 74 - World Timbers, Vol.2, North and South America

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