P 3-10 m
hill and mountain
Distinct rings, diffuse porous, vessels 30-70 µm in diameter, vessels in radial multiples, simple perforations, with thion helical thickenings, fibers thin to thick walled, fibers with small pits, parenchyma apotracheal-diffuse in uniseriate tangential rows, aggregate rays, rays homocellular, and heterocellular with one row of square marginal cells, rays1-3 seriate, with aggregate rays, with large prismatic crystals.
Uniserate layers of sieve-tubes an parenchyma cells, sclereids in cortext and phloem in the continuation of aggregate rays, with crystal druses and prismatic crystals. Dense phellem with regularly arranged rectangular cells.
For explanations please see the Feature Characteristics.
© 2005 WSL - F. Schweingruber, W. Landolt, last update 18.11.2010