Commercial Timbers


H. G. Richter and M. J. Dallwitz

Anopyxis klaineana (Pierre) Engl. (Bodioa)

Nomenclature etc. RHIZOPHORACEAE. Syn.: Anopyxis ealaensis Sprague. Trade and local names: bodioa (CI); kpomuisi (LR); noudougou (CM); bobenkusu (CD). Not protected under CITES regulations.

Description based on 9 specimens. Tree. Geographic distribution: tropical Africa.

General. Growth ring boundaries indistinct or absent. Heartwood basically brown yellow to white or grey, without streaks. Sapwood colour similar to heartwood colour. Odour indistinct or absent. Density 0.75–0.87 g/cm³.

Vessels. Wood diffuse-porous. Vessels arranged in no specific pattern, exclusively solitary. Vessel outline rounded. Two distinct vessel diameter classes absent. Scalariform perforation plates occasionally present, however without diagnostic significance. Average tangential vessel diameter 170–260 µm; diameter of vessel lumina: large to very large. Average number of vessels/mm² 2–4; vessels per square millimetre very few. Perforation plates simple. Vessel-ray pits with distinct borders or with reduced borders or apparently simple, different from intervessel pits, horizontal to vertical. Vessel-ray pits mostly very large, oval to gash-like, only partly bordered. Helical thickenings absent. Tyloses in vessels present, thinwalled. Other deposits in heartwood vessels not observed.

Tracheids and fibres. Vascular or vasicentric tracheids sporadic to absent. Fibres very thick-walled. Fibre pits common in both radial and tangential walls, distinctly bordered. Helical thickenings absent. Fibres non-septate.

Axial parenchyma. Axial parenchyma present, not banded. Axial parenchyma paratracheal. Paratracheal axial parenchyma vasicentric to aliform. Aliform parenchyma lozenge. Axial parenchyma as strands. Average number of cells per axial parenchyma strand 7–13. Unlignified parenchyma absent. Paratracheal parenchyma occasionally confluent, however without diagnostic significance.

Rays. Rays present, 4–7 per tangential mm, multiseriate (also if only few), 2–4 cells wide, of medium width (3–5 seriate). Rays with multiseriate portions as wide as uniseriate portions absent. Aggregate rays absent. Rays of one size. Height of large rays commonly 500 to 1000 µm to commonly over 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 to with more than 4 marginal rows of upright or square cells. Sheath cells absent. Tile cells absent. Perforated ray cells absent. Disjunctive ray parenchyma end walls indistinct or absent. The number of marginal rows varies considerably in different specimens, from largely 1–2 to more than 4.

Storied structures. Storied structure absent.

Secretory structures. Oil and mucilage cells absent. Intercellular canals absent. Laticifers or tanniniferous tubes absent.

Cambial variants. Included phloem absent. Other cambial variants absent.

Mineral inclusions. Crystals present, prismatic, located in ray cells and axial parenchyma cells. Crystal-containing ray cells procumbent. Crystals in procumbent ray cells in radial alignment and not in radial alignment. Crystal-containing axial parenchyma cells chambered and not chambered. Number of crystals per cell or chamber one. Crystal containing cells of normal size. Cystoliths absent. Presence of crytals observed in only about 50% the studied specimens. Silica not observed.

Illustrations. • Transverse section. Anopyxis klaineana. • Tangential section. Anopyxis klaineana. • Radial section. Anopyxis klaineana.

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: 25th June 2009.’.