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Nomenclature etc. BURSERACEAE. Asian species: Santiria apiculata Benn., S. laevigata Blume, S. oblongifolia Blume, S. tomentosa Blume. Trade and local names: kerantai, upi, seladah (MY); kenari, kerantai, kayu kuning (ID).
Description based on 4 specimens. Tree. Geographic distribution: Indomalesia.
General. Heartwood basically brown and yellow (heartwood yellowish to greenish to pinkish brown). Sapwood colour similar to heartwood colour, or distinct from heartwood colour. Density 0.47–0.67 g/cm³.
Vessels. Wood diffuse porous. Vessels in multiples, commonly in short (2–3 vessels) radial rows. Average tangential vessel diameter (62–)120–160 µm. Average number of vessels/mm² 14–16–19. Perforation plates simple. Intervessel pits alternate, average diameter (vertical) (7–)8–12 µm. Vessel-ray pits with reduced borders or apparently simple, different from intervessel pits, rounded or angular or horizontal to vertical, of two distinct sizes or types in the same ray cell. Tyloses present, thinwalled.
Tracheids and fibres. Fibres very thin-walled, or of medium wall thickness. Average fibre length 800–1500 µm. Fibre pits mainly restricted to radial walls, simple to minutely bordered. Fibres exclusively septate; evenly distributed.
Axial parenchyma. Axial parenchyma present. Axial parenchyma paratracheal. Paratracheal axial parenchyma scanty, or vasicentric. Axial parenchyma as strands. Average number of cells per strand: 2–4. Axial parenchyma very sparse.
Rays. Rays 4–7 per tangential mm, exclusively uniseriate (occasionally partly biseriate). 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. Wood rays sometimes with biseriate parts.
Mineral inclusions. Silica present, as grains; in rays cells, in axial parenchyma (few), in fibres.
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 colourless to brown. Splinter burns to partial ash. Ash yellow-brown.
Illustrations. • Transverse section. Santiria sp. • Tangential section. Santiria oblongifolia. • Radial section. Santiria oblongifolia. • Silica in fibers. Santiria laevigata.
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’.
