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Morphology

T, 2 - 15 cm

Ecology

alpine, medium site

Chorology

Arctic- Alpine

Xylem

Only on ring, vessels in radial multiples, vessel diameter <20 µm, parenchyma no to recognize, rayless. Probably little spots of fibers outside of the cambium ¿ included phloem? No phloem in pith.

Xylem-Code

See annex

Phloem

Tangential layers of sieve cells.

Remarks

Gornergrat, Zermatt, Valais, Switzerland 2800m

Explanations

For explanations please see the Feature Characteristics.

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

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