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Muirapixuna
Cassia scleroxylon Ducke Cassia scleroxylon Ducke
LEGUMINOSAE
Muirapixuna (Brazil)
Chamaecrista scleroxylon (Ducke) H.S. Irwin & Barn
This species presents small to medium size trees. The boles are straight or occasionally twisted, with average commercial lengths of 6 m and average diameters of 45 cm.
This species is distributed in the Amazon region.
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). White deposits in heartwood vessels. Vessels per mm2 10 to 20 (abundant). Simple perforation plates. Vessel-ray pits similar to Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma in discontinuous tangential lines. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. Axial parenchyma in narrow bands on lines up to 3 cells wide. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Fibers with simple to minutely bordered pits.
Unrestricted
The wood has no specific odor or taste.
The heartwood and sapwood are distinct. The heartwood is very dark brown to black, and the sapwood is very pale brown.
The grain is usually straight or wavy.
This species is usually reported to have a medium texture.
Luster is reported to be moderate.
2
The heartwood is reported to be impermeable.
1.01
1.20
8.2
3.6
BR-B
2.3
1844
167000
982
232
203
1558
1483
Planing operations are reported to be fair, risk of grain tearing is reported.
Boring is reported to be fair, but with good surface finishing.
Sanding operations are fair, with fair finishing.
This species is reported to be difficult to cut.
EXTERIOR GENERAL, HOUSING GENERAL, FURNITURE AND CABINETS
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