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| Commercial timbers |
Nomenclature etc. LAURACEAE. Syn.: Ocotea baturitensis Vattimo, O. martiniana (Nees)Mez, O. paraensis Coe-Teixeira, O. paranapiacabensisCoe-Teixeira, O. puberula var.truncata (Meissn.)Mez, O. pyramidataBlake ex Brandegee, O. subglabrata Benoist, O. ucayalensis O.C. Schmidt Oreodaphne acutifolia var.latifolia Nees, Oreodaphne hostmannianaMiq. Oreodaphne martiniana var. latifolia Meissn., Oreodaphne warmingii Meissn. Strychnodaphne puberula Nees & Mart.ex Nees. Trade and local names: guaiká (PY); guaicá, canela-sebo, canela-parda, canela-de-corvo, canela-pimenta, canela pinho (BR); guaiká blanca, guaicá, canela guaicá (AR); moraja kaspi (PE); keretiballi (SR). Not protected under CITES regulations.
Description based on 13 specimens. Tree. Geographic distribution: Mexico and Central America, tropical South America, southern Brazil, temperate South America.
General. Growth ring boundaries distinct and indistinct or absent. Demarcated by a latewood band of smaller, thicker walled and radially flattened fibres. Heartwood basically brown. Sapwood colour similar to heartwood colour. Density 0.4–0.5 g/cm³.
Vessels. Wood diffuse porous. Vessels in multiples, commonly in short (2–3 vessels) radial rows. Vessel outline rounded and angular. Average tangential vessel diameter 60–120–150 µm. Average number of vessels/mm² 4–15. Average vessel element length 418–612–756 µm. Perforation plates simple. Intervessel pits alternate, average diameter (vertical) 10–15 µm. Vessel-ray pits with reduced borders or apparently simple, different from intervessel pits, rounded or angular and horizontal to vertical, of uniform size or type and of two distinct sizes or types in the same ray cell. Tyloses present, thinwalled.
Tracheids and fibres. Fibres very thin-walled to of medium wall thickness. Average fibre length 840–1080–1230 µm. Fibre pits mainly restricted to radial walls, simple to minutely bordered. Fibres exclusively septate; evenly distributed.
Axial parenchyma. Axial parenchyma apotracheal, or paratracheal. Apotracheal axial parenchyma diffuse-in-aggregates. Paratracheal axial parenchyma scanty and vasicentric. Axial parenchyma as strands. Average number of cells per strand: 4–7.
Rays. Rays 5–7 per tangential mm, multiseriate, 2–4 cells wide. Height of large rays commonly 500 to 1000 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. Oil and mucialge cells present in both axial and radial parenchyma, however infrequent.
Mineral inclusions. Crystals present, needle-like (acicular), located in ray cells. Crystal-containing ray cells upright and/or square and procumbent. Number of crystals per cell or chamber more than one. Few acicular crystals in some specimens, absent in others. Silica not observed.
Illustrations. • Transverse section. • Tangential section. • Radial section.
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’.
