N 80-200 cm
Distinct and indistinct rings, diffuse porous, 25-40 µm in diameter, vessels solitary, simple perforations, with thin helical thickenings, fibers thin-to thick-walled with large pits, parenchyma apotracheal diffuse in aggregates, rays 1-3 cells in width, heterocellular with prostrate cells in the center and 3-6 marginal upright cells.
Sieve-tubes and parenchyma cells in tangential layers, A few ray dilatations, Sclereids in the cortex, many crystal druses in tangential rows.
For explanations please see the Feature Characteristics Volume 1.
© 2005 WSL - F. Schweingruber, W. Landolt, last update 18.11.2010