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Morphology

N, 100-300cm

Ecology

mountain and subalpine

Chorology

Eurasian

Xylem

Distinct rings, ring porous, often >200 µm in diameter, earlywood vessels solitary or in groups. Latewood vessels solitary simple perforations, with helical thickenings, fibers thin to thick-walled with large pits, parenchyma apotracheal, ray width 2 cells, homocellular with prostrate cells, rays storied.

Xylem-Code

See annex

Phloem

Tangential layers of small sieve tubes, collapsed sieve-tubes netlike, sclereids in round groups, tangentially arranged, a few prismatic crystals.

Explanations

For explanations please see the Feature Characteristics.

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

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