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Morphology

C, 5-15cm

Ecology

alpine, dry site

Chorology

S-European, montaine

Xylem

Distinct rings, semi-ring porous, vessels solitary, vessel diameter approximately 20µ, vessels thick walled (2µ), parenchyma paratracheal and mostly thin walled parenchyma between vessels, small intra-annual tangential band of fibers, rayless, crystals absent.

Xylem-Code

See annex

Phloem

Uniform anatomy, sieve elements and parenchyma in radial rows, crystals absent.

Remarks

Grand St. Bernard, Valais, Switzerland

Explanations

For explanations please see the Feature Characteristics.

© 2005 WSL - F. Schweingruber, W. Landolt, last update 18.11.2010

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