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Morphology

H, 10 - 30cm

Ecology

mountain and subalpine Pinus ponderosa forest

Chorology

W-American

Xylem

Distinct rings, vessels in diagonal patterns, simple perforations, vessel diameter 40 – 70µm, with vestured intervessel pits, fibers thick-walled, parenchyma vasicentric, ray width 2-3 cells, homocellular with square and upright cells.

Xylem-Code

See annex

Phloem

With tangential bands of collapsed sieve-tubes, and small round groups of sclerenchyma cells

Explanations

For explanations please see the Feature Characteristics.

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

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