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AMARELINHO (Helietta longifoliata)
Trade Name
Amarelinho
Scientific Name
Helietta longifoliata Britton
Family
RUTACEAE
Common Names
Osso De Burro (Brazil); Canela De Veado (Brazil); Cun Cun (Brazil); Amarelinho (Brazil)
Scientific Name Synonyms
Helietta cuspidata (Engl.) Chodat & Hassl.; Helietta apiculata Benth.; Esenbeckia cuspidata Engl.
Description Of The Tree
Botanical Description
The size of the mature tree is reported to be small to medium, attaining heights of 10 to 18 m, and trunk diameters of about 35 to 60 cm.
Natural Habitat
Helietta longifoliata is found scattered, on humid soils. Rarely reported in dense primary forests.
Natural Distribution
The geographical range for this species in Brazil is the basin of the Parana and the Uruguay rivers. It grows in the states of Sao Paulo and Mato Grosso until Rio Grande do Sul.
Wood Identification
Anatomic Description Of Wood
Tangential diameter of vessel lumina 100 micras or less (very small). Tyloses common. Vessels per mm2 more than 20 (very abundant). Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma in continuous tangential lines (included in reticulate and scalariform).
Availability
Cites Status
Unrestricted
General Wood Description
Odor
No odor or taste are reported.
Color
The heartwood is yellowish or nearly white color.
Texture
This species is usually reported to have a fine texture.
Luster
Timber of this species is lustrous.
Natural Durability
It is probably not resistant to decay.
Natural durability index (1= Very high durability, 7=Vey low durability)
6
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.85
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.98
Total shrinkage Tangential (Saturated to 0%MC) (%)
10.4
Total shrinkage Radial (Saturated to 0%MC) (%)
6.2
Drying Defects
Ease of Drying: Air seasoning is reported to be moderate, with little degrade. Drying Defects: During early stages of drying the sapwood is reported to be attacked by wood staining fungi.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
1.7
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
1333
Compression parallel to fiber 12%MC (kgf/cm²)
629
Workability
Machining
Wood processing is reported to be easy.
Turning
30
Polishing
Polishing of this species is reportedly easy.
REFERENCED USES
End Uses Summary
EXTERIOR GENERAL, stakes posts, crossties, HOUSING GENERAL, beams, TURNING, TOOLS, tool handles, agricultural tools
Exterior General
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Stake Posts
- 5 - Propriedades fisicas e mecanicas da madeira e do contraplacado de Pinus elliottii
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
Turning
- 30 - Embassy of Honduras 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
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