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Nomenclature etc. LAURACEAE. Syn.: Ocotea rubra Mez, Nectandra rubra (Mez) C.K. Allen. Trade and local names: puxurí-rana (BR), determa (GY), wane (NL, SR), taparin, bewana, tetroema, wonae (SR), grignon, g. franc (FR), red louro (GB). Not protected under CITES regulations.
Tree. Geographic distribution: tropical South America.
General. Heartwood basically brown to red. Sapwood colour distinct from heartwood colour. Density 0.5–0.6 g/cm³.
Vessels. Wood diffuse porous. Vessels arranged in a diagonal and/or radial pattern (diagonal pattern with periodic change of direction), in multiples, commonly in short (2–3 vessels) radial rows. Average tangential vessel diameter 100–160–230 µm. Average number of vessels/mm² 4–9. Perforation plates simple. Intervessel pits alternate, average diameter (vertical) 10–14–18 µm. Vessel-ray pits with reduced borders or apparently simple, different from intervessel pits, rounded or angular, of two distinct sizes or types in the same ray cell, unilaterally compound and coarse (extremely large window-like pits). Tyloses present, thinwalled.
Tracheids and fibres. Fibres very thin-walled and of medium wall thickness. Average fibre length 1000–1800–2500 µm. Fibre pits mainly restricted to radial walls, simple to minutely bordered. Fibres septate and non-septate; evenly distributed.
Axial parenchyma. Axial parenchyma paratracheal. Paratracheal axial parenchyma vasicentric. Axial parenchyma as strands. Average number of cells per strand: 4–8.
Rays. Rays 3–8 per tangential mm, multiseriate, 2–3 cells wide. Height of large rays up to 500 µm. Rays composed of two or more cell types (heterocellular). Heterocellular rays with square and upright cells restricted to marginal rows, mostly 1 marginal row of upright or square cells.
Secretory structures. Oil and mucilage cells present, associated with axial parenchyma and ray parenchyma (infrequent in rays).
Mineral inclusions. Crystals not observed. Silica not observed.
Physical and chemical tests. Heartwood not fluorescent. Water extract not fluorescent; colour of water extract colourless to brown. Ethanol extract not fluorescent. Colour of ethanol extract red. Splinter burns to partial ash. Ash white to grey.
Illustrations. • Makroskopische Abbildungen. quer (ca. 10x). radial (natürliche Größe). • Querschnitt. • Tangentialschnitt. • Radialschnitt.
The interactive key allows access to the character list, illustrations, full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting specified attributes, summaries of attributes within groups of taxa, and geographical distribution.
Cite this publication as: ‘Richter, H.G., and Dallwitz, M.J. 2000 onwards. Commercial timbers: descriptions, illustrations, identification, and information retrieval. In English, French, German, Portuguese, and Spanish. Version: 9th April 2019. delta-intkey.com’.
