Wood-anatomical description (IAWA hardwood codes):
*Growth rings: (1: growth ring boundaries distinct); (2: growth ring boundaries indistinct or absent). *Vessels: 5: wood diffuse-porous; (7: vessels in diagonal and/or radial pattern); (10: vessels in radial multiples of 4 or more common); 13: simple perforation plates; 22: intervessel pits alternate; (23: shape of alternate pits polygonal); 26: intervessel pits medium ( 7–10 μm); 27: intervessel pits large (<font size="1">≥</font> 10 μm); 30: vessel-ray pits with distinct borders; similar to intervessel pits in size and shape throughout the ray cell; 31: vessel-ray pits with much reduced borders to apparently simple: pits rounded or angular; 32: vessel-ray pits with much reduced borders to apparently simple: pits horizontal (scalariform, gash-like) to vertical (palisade); 33: vessel-ray pits of two distinct sizes or types in the same ray cell; 42: mean tangential diameter of vessel lumina 100–200 μm; 47: 5–20 vessels per square millimetre; 56: tyloses common. *Tracheids and fibres: 61: fibres with simple to minutely bordered pits; 66: non-septate fibres present; 69: fibres thin- to thick-walled. *Axial parenchyma: (77: axial parenchyma diffuse-in-aggregates); 86: axial parenchyma in narrow bands or lines up to three cells wide; 87: axial parenchyma reticulate; 93: eight (5–8) cells per parenchyma strand; (94: over eight cells per parenchyma strand). *Rays: 97: ray width 1–3 cells; (100: rays with multiseriate portion(s) as wide as uniseriate portions); 106: body ray cells procumbent with one row of upright and/or square marginal cells; 107: body ray cells procumbent with mostly 2–4 rows of upright and/or square marginal cells; 108: body ray cells procumbent with over 4 rows of upright and/or square marginal cells; 115: 4–12 rays per mm. *Mineral inclusions: 159: silica bodies present; 160: silica bodies in ray cells; (161: silica bodies in axial parenchyma cells).
(P. Détienne & E.A. Wheeler)