Quinilla colorada

Geographical Distribution: The distribution of the Sepcies was obtained from literature and herbal reports within the provinces of Huánuco, Loreto, Madre de Dios and San Martín, between 0 and 500 m. above sea level. Small to average amounts of this species can be found in the Peruvian Amazon.
The tree: 25 to 40 m. tall, round trunk. High-quality, 15to 25-meter-long / 50to 85-cm-diameter pieces might also be found. Mixed-development visible branches ranging from poorly developed to highly developed, high and extended. Stratified, dark green to light green top. The surface of the bark is grayish, rough-looking, deeply fissured. Thick dead bark. Main bark is orange red. Abundant, sticky, white latex.

CHARACTERISTICS OF THE WOOD
Color: When freshly cut, sapwood (alburnum) is light chestnut-brown and hardwood (duramen) is dark reddish chest nut-brown. Great and abrupt contrast of colors between both layers. When dried in open air, alburnum turns reddish brown HUE 6/4 5YR and duramen turns reddish brown HUE 4/4 5YR. (Munsell Soil Color Charts).

Fragrance Non-distinctive.
Shine or gloss Low.
Grain Straight.
Texture Delicate.
Streaks or patterns: Overlapped arches. Glossy wide stripes in different inserted shades

TECHNICAL CHARACTERISTICS
Quinilla colorada is a very heavy type of wood, showing low linear shrinkage and moderately stable volumetric shrinkage.
Mechanical resistance is in the limit of the high rank.

Physical Properties
Primary density 0.87 g/cm3
Tangential contraction 11.01 %
Radial contraction 6.76 %
Volumetric contraction 15.80 %
T/R Ratio 2.20

Mechanical Properties
Module of elasticity in flexion 184,000 kg/cm2
Module of breakage in flexion 1,204.00 kg/cm2
Parallel compression (RM) 476.00 kg/cm2
Perpendicular compression (ELP) 140.00 kg/cm2
Grain-parallel cut 135.00 kg/cm2
Hardness on the sides 1,090.00 kg/cm2
Firmness (Resistance to impact) 6.60 kg-m

TECHNICAL ADVICE
Wood requires great effort to be worked on due to high mechanical resistance and hardness. Good workability when polished, drilled, lathe-shaped or molded.
Natural drying process is slow. Performs well when artificially dried in a mild setting.
High natural durability, duramen is resistant against biological attack; however its resistance to underwater insects is low, vacuum-pressure chamber is recommended.

USES
Wood can be used in crossbeams, railway sleepers, heavy constructions, pieces for bridges, poles, floors, wooden tiles, decorative plates, arcs, musical instruments and lathe-shaped pieces.