PERUVIAN ROSEWOOD (Micrandra spruceana)
Trade Name
Peruvian rosewood
Scientific Name
Micrandra spruceana (Baill.) R.E. Schult.
Family
EUPHORBIACEAE
Common Names
Peruvian Rosewood (Peru); Cunuri (Venezuela); Reventillo (Colombia); Yetcha (Colombia); Carapacho (Peru); Shiringa Masha (Peru); Higuerilla Negra (Peru); Higuerilla (Peru)
Scientific Name Synonyms
Cunuria spruceana Baill.
Description Of The Tree
Botanical Description
It is reported to grow to heights from 30 to 35 m, usually with trunk diameters up to 100 cm. This species has straight, cylindrical boles, with small buttresses.
Natural Habitat
Micrandra spruceana is found in terra firme or temporarily inundated forests in the Amazon basin.
Natural Distribution
Venezuela, Ecuador, Colombia and Peru. In Peru it grows in the departments of San Martin, Loreto and Ucayali.
Wood Identification
Anatomic Description Of Wood
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Tyloses sclerotic. Tyloses common. Vessels per mm2 less than 6 (rare). Vessel-ray pits similar to intervessel pits in siz Axial parenchyma confluent. Axial parenchyma oblique and/or sinuous. Occasionally axial parenchyma in continuous tangential lines (included in reticulate and scalariform). Prismatic crystals in non-chambered axial parenchyma cells. 5 to 8 cells per parenchyma 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Occasionally prismatic crystals in the ray cells. 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 distinctly bordered pits. Occasionally fibers with distinctly bordered pits.
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Wood Macro Photo Radial Plane
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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 clearly differentiated, it is pink, the heartwood is reddish brown when dry.
COLOR INDEX (1=Black, 7=Light yellow,white)
4
Grain
The grain is mostly straight
Texture
The wood is reported to have a coarse texture.
Luster
The wood exhibits a low to moderate luster.
Natural durability index (1= Very high durability, 7=Vey low durability)
4
Wood Physical Properties
Basic Density or Specific Gravity (O.D. weight/vol. green) (g/cm³)
0.40
Air-dry Density (Weight and volume at 12%MC) (g/cm³)
0.43
Total shrinkage Tangential (Saturated to 0%MC) (%)
6.8
Total shrinkage Radial (Saturated to 0%MC) (%)
3.4
Drying Defects
Ease of Drying: It is reported to air dry rapidly. Drying Defects: Slight tendency to warp or check. Kiln Schedules: Careful drying is recommended.
Dimensional stability ratio (Total Tangential Shrinkage %/Total Radial Shrinkage %)
2.0
Wood Chemical Properties
Wood Mechanical Properties
Bending Strength (MOR),12%MC (kgf/cm²)
403
Stiffness (MOE) 12%MC (kgf/cm²)
94000
Compression parallel to fiber 12%MC (kgf/cm²)
209
Compression perpendicular to fiber 12%MC (kgf/cm²)
31
Shear strength radial 12%MC (kgf/cm²)
47
Janka hardness (side) 12%MC (kgf)
136
Workability
Sawing
Sawmilling of this species is reportedly fair to difficult.
Rotary Veneer Cutting
It can be used for sliced veneer, preliminary thermal treatments are recommended.
Sliced Veneer
It can be used for sliced veneer, preliminary thermal treatments are recommended.
Blunting Effect
Dulling of cutting tools is moderate.
Machining
Wood processing is reported to be easy.
Planing
Planing operations are rather easy.
Moulding
Molding operations are rather easy.
Boring
Boring is reported to be easy.
Mortising
It is easy to mortise.
Finishing
It is easy to finish.
Polishing
Wood of this species is easy to polish.
REFERENCED USES
End Uses Summary
HOUSING GENERAL, panelling, shutter boards, FURNITURE AND CABINETS, luxury furniture, PLYWOOD AND VENEER, decorative
General Housing
- 10 - Silica in Timbers
Paneling
- 18 - W3TROPICOS Missouri Botanical Garden
Shutter Boards
- 20 - Prospect: The wood database
Furniture Cabinets
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Furniture, Luxury
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Panels, Veneers
- 25 - Directory of Timber Trade Malaysia
Decorative veneer
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
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