| BIBOSI, Ficus sp.
Synonoms: Caxinguba, Higuerón
Bibosi is a medium hard and textured wood. It can be used for interior carpentry, doors, windows, mouldings, etc. It has good machining and finishing characteristics.
Nomenclature etc. MORACEAE. F. anguina, F. crassiuscula, F. glabrata, F. insipida, F. killipii, F. hartwegii, F. mathewsii, F pertusa, F. ruiziana, F. trigona. Trade and local names: higuero, higuerón; figueira (Handelsnamen trade names. Status of protection under CITES regulations: not protected.
Description based on: 11 specimens. Tree. Geographic distribution: Mexico and Central America to temperate South America.
General. Growth ring boundaries distinct or indistinct or absent. Heartwood basically yellow white or grey, without streaks. Sapwood colour similar to heartwood colour. Basic specific gravity 0.3–0.65 g/cm³.
Vessels. Wood diffuse-porous. Vessels in multiples, commonly short (2–3 vessels) radial rows. Average tangential vessel diameter (170–)200–250(–280) µm. Average number of vessels/mm² (2–)3–6(–10). Perforation plates simple. Intervessel pits alternate, average diameter (vertical) 8–11 µm. Vessel-ray pits predominantly with reduced borders or apparently simple, rounded or angular or horizontal to vertical. Tyloses in vessels absent.
Tracheids and fibres. Fibres very thin-walled, or of medium wall thickness. Fibre pits mainly restricted to radial walls, simple to minutely bordered. Fibres non-septate.
Axial parenchyma. Axial parenchyma banded. Axial parenchyma bands 2–3 per radial mm. Axial parenchyma paratracheal. Paratracheal axial parenchyma aliform, or confluent. Aliform parenchyma lozenge. Axial parenchyma as strands. Average number of cells per axial parenchyma strand 4–8.
Rays. Rays 4–7 per tangential mm, multiseriate, also if only few, (1–)2–6 cells wide. Height of large rays commonly 500 to 1000 µm, or commonly over 1000 µm. Rays composed of two or more cell types. Heterocellular rays square and upright cells restricted to marginal rows. Number of marginal rows of upright or square cells 1, or 2–4. Sheath cells occasionally present.
Secretory structures. Intercellular canals absent. Laticifers or tanniniferous tubes F. anguina, F. crassiuscula, F. insipida, F. pertusa, F. ruiziana, F. trigona present (F. glabrata, F. hartwegii, F. killipii, F. mathewsii), or absent.
Mineral inclusions. Crystals present, prismatic, located in ray cells and axial parenchyma cells. Crystal-containing ray cells upright and/or square or procumbent. Crystal-containing axial parenchyma cells chambered, or not chambered. Number of crystals per cell or chamber one, or more than one (up to 2). Silica in some specimens from Peru and Bolivia present or not observed, as grains, in rays cells. Particles usually small and inconspicuous. |
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Name and Family
Spanish Common Name YESQUERO NEGRO
International Common Name ALBARCO JEQUITIBA
Scientific Name Cariniana estrellensis
Family LECYTHIDACEAE
Distribution: Ecological: Very humid and humid, sub-tropical forest.
Geographic: Provinces of Santa Cruz, Beni, Pando, Cochabamba, La Paz; Bolivia.
General Characteristics of the Tree: Total height up to 35 m; bole uniform and straight; round large crown, with intensely green leaves.
General Characteristics of the Wood: Its wood is a grayish tan in color, with ocasinal pinkish streaks. Its heartwood and sapwood are similar and both are utilized, but heartwood has more elegant gray/pinkish tones. Odor similar to that of vanilla, no characteristic taste; annual rings clearly distinguished by a space between tissue strips, straight to crossed grain; it has a fine-grained smooth texture.
Physical Properties of the Wood
Density at 12 % moisture content 0,68 gr/cm3
Specific Gravity 0,57 gr/cm3 medium
Total radial shrinkange, R 4,4 %
Total tangential shrinkange, T 7,2 %
Total volumetric shrinkange 11.7 %
T/R 1,6 stable wood
Mechanical Properties of the Wood (12% M.C.)
Static bending 846 kg/cm2
Modulus of elasticity in satatic flex 100.000 kg/cm2
Compression parallel to grain 514 kg/cm2
Lateral hardeness 735 kg
Lateral Resistance to nail extraction 153 kg/nail
Workability of the Wood: Easy to process mechanically, good to very good machining properties, good and smooth surface finish and stable, fair to good spliting resistance in nailing and screwing, very good to excellent nail and screw holding ability, good to very good glueing properties. Kiln drying schedule: USA T3-D2 (4/4,5/4,6/4), USA T3-D1 (8/4); British Schedule D: (4/4,5/4,6/4).
Natural Durability: Wood is difficult to treat. Natural durability is good, especially when not in contact with soil, and resistant to dry-wood termites.
Recommended Uses: Furniture and Parts. Doors, door frames. Window frames. Mouldings. Veneer. Turnery. Cabinetry. Flooring, parquet. Coffins. Tongue and groove. Tool handles and athletic equipment. Musical Instruments. Match sticks. Pencils
Species with similar properties:
Species in the USA: Blue Ash, Red Oak, Black Walnut, Beech, Birch
Tropical species: Mahogany, Apamate, Avodire |
