boreal, medium site
Distinct rings in wedge-like radial vascular bundles, ring-porous to semi-ring porous, vessels in groups, earlywood vessel diameter 60-110µm, fibers with distinct big (3 µm)round, bordered pits, some fibers with spiral thickenings, fibers storied, simple perforations, round intervascular pits, parenchyma paratracheal, apotracheal and marginal, vascular bundles rayless, sometimes with secondary rays, very large rays (dilatation) between the bundles.
Bands sieve elements alternating with parenchyma cells, tangentially arranged in a thin walled parenchymatic tissue. Many phellem bands.
For explanations please see the Feature Characteristics.
© 2005 WSL - F. Schweingruber, W. Landolt, last update 18.11.2010