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Turraeanthus africanus (Welw. ex C. DC.) Pellegr.

Comprehensive Description

provided by Smithsonian Contributions to Botany
Turraeanthus africanus Hutchinson & Dalziel

Standard trade name: Avodire

Local name: Apapaye

A medium size tree 2–2.5 ft in diameter, branching low with a spreading crown. Leaves are pinnate with long-acuminate or elongate-oblong leaflets, rounded or shortly cuneate at the base. Flowers are small, dull yellow, and densely pubescent. The timber is used for building. The bark and leaves are used as fish poison.

GENERAL DESCRIPTION.—There is no distinction between sapwood and heartwood. The pale cream wood has a natural luster and darkens to a golden yellow. The grain is often wavy or interlocked but is sometimes straight. The figured material is more distinctive and very attractive. The average weight is about 34 lb/ft3 seasoned.

SEASONING.—Avodire can be seasoned fairly rapidly but tends to cup and twist. British Forest Products Laboratory kiln schedule E is recommended (FPRL, 1956).

DURABILITY.—The timber is not durable. It is extremely resistant to preservative treatment, although the sapwood is permeable.

WORKING QUALITIES.—Avodire works fairly easily with hand and machine tools and has a very small dulling effect on their cutting edges. It produces a smooth finish, polishes and glues well.

USES.—Being a superior joinery timber, it is used for interior and cabinet work. It is also used for decorative veneer.

XYLEM ANATOMY.—Growth rings absent. Wood diffuse-porous. Vessels: solitary or in multiples of 2 or 3 pores; circular in outline, rarely angular; average pore diameter 70μm, range 50μm–110μm; average vessel length 625μm, range 413μm–838μm; vessel wall thickness 3μm–4μm; perforation plates simple; vessel element end wall inclination slightly oblique; intervascular pitting alternate, rather small. Imperforate tracheary elements: nonseptate fiber tracheids; average length 1435μm; range 1100μm–1713μm; fibers with few simple pits on tangential walls. Vascular rays: homogeneous, generally biseriate, 3 to 17 cells high, but uniseriate and multiseriate cells also present. Axial parenchyma: apotracheal, cells without dark amorphous deposits.
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bibliographic citation
Ayensu, Edward S. and Bentum, Albert. 1974. "Commercial Timbers of West Africa." Smithsonian Contributions to Botany. 1-69. https://doi.org/10.5479/si.0081024X.14

Turraeanthus africanus

provided by wikipedia EN

Turraeanthus africanus is a species of plant in the family Meliaceae, also known by the common names avodiré, apeya, engan, agbe, lusamba, wansenwa, African satinwood, and African white mahogany.[3]

Nomenclature

Although the species epithet given by François Pellegrin in the first publication is africana,[4] it should be amended into masculine form, i.e. africanus per the ICN (ed. 2017, Art. 62.2 (c)): "Compounds ending in ‑ceras, ‑dendron, ‑nema, ‑stigma, ‑stoma, and other neuter words, are neuter. An exception is made for names ending in ‑anthos (or ‑anthus), ‑chilos (‑chilus or ‑cheilos), and ‑phykos (‑phycos or ‑phycus), which ought to be neuter, because that is the gender of the Greek words άνθος, anthos, χείλος, cheilos, and φύκος, phykos, but are treated as masculine in accordance with tradition."[5]

Description

The species is found in Angola, Benin, Cameroon, the Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Ghana, Nigeria, Sierra Leone, and Uganda. The genus name is derived from the botanist Turra (1607-1688) of Padua, Italy and arithos, a Greek word meaning flower.[6]

Turraeanthus africanus is described as a tree of the rain forest, typically, 115 ft. (35m), and having a trunk diameter of 2 to 3 ft. (0.6-0.9m). The wood of this tree has a specific gravity of 0.48.[7] It is commonly creamy white or pale yellow but will darken upon exposure to ultra-violet light to a golden yellow color. It has an interlocked wood grain producing various figures: striped, curly, or mottled.[8]

Uses

Avodire wood has long been valued in furniture for its naturally lustrous surface, which has led to the name African Satinwood. Commonly, the highly figured wood is used for veneers in panelling and marquetry.

A preparation from the bark of this plant is used by Baka people in southeastern Cameroon to stun fish.[9]

Conservation

It listed on the IUCN Red List as vulnerable, and is threatened by habitat loss.

References

  1. ^ Barstow, M. (2020). "Turraeanthus africana". IUCN Red List of Threatened Species. 2020: e.T33064A69047658. doi:10.2305/IUCN.UK.2020-3.RLTS.T33064A69047658.en.
  2. ^ "Turraeanthus africanus". Global Biodiversity Information Facility. Retrieved 7 July 2021.
  3. ^ "Avodire | The Wood Database - Lumber Identification (Hardwood)". www.wood-database.com. Retrieved 2017-07-18.
  4. ^ Pellegrin, F. (1911). "Contribution à l'étude de la Flore de l'Afrique occidentale: Méliacées". Notulae Systematicae. 2: 68.
  5. ^ Article 62, International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code). Accessed: 17 June 2021.
  6. ^ James H. Flynn and Charles D. Holder, Eds. A Guide to Useful Woods of the World, second edition, page 546, Forest Products Society, 2001
  7. ^ United States Department of Agriculture."The Encyclopedia of Wood", page 1-18.Skyhorse Publishing, Inc.,2007
  8. ^ Terry Porter: "Wood Identification and Use", page 224. Guild of Master Craftsman Publications Ltd. 2004
  9. ^ HUNTING ACTIVITIES IN FOREST CAMPS AMONG THE BAKA HUNTER-GATHERERS OF SOUTHEASTERN CAMEROON, African Study Monographs, 29(2): 73-92, July 2008
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Turraeanthus africanus: Brief Summary

provided by wikipedia EN

Turraeanthus africanus is a species of plant in the family Meliaceae, also known by the common names avodiré, apeya, engan, agbe, lusamba, wansenwa, African satinwood, and African white mahogany.

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cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN