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Morphology

C, 1-3 cm, cushion plant

Ecology

Alpine Zone, medium sites

Chorology

Arctic- alpine.

Xylem

Distinct and indistinct rings, diffuse porous and semi-ring porous, vessels solitary, vessels small (20-30 microns) vessels thick walled (2 microns), parenchyma thin walled between vessels, rayless in cross section, crystals absent, included phloem.

Xylem-Code

See annex

Phloem

Uniform anatomy, groups of sieve cells and parenchyma in radial rows, without crystals.

Remarks

Cross section:
Tangential section:
Radial section:
Bark:

Septimer-Pass, Grisons, Switzerland

Explanations

For explanations please see the Feature Characteristics.

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

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