back to the start page   |   back to the list                              

Morphology

H, 10 - 30cm

Ecology

hill and mountain volcanic ash

Chorology

W-American

Xylem

Indistinct rings, vessels in diagonal patterns, simple perforations, vessel diameter 80-150 µm, with helical thickenings, , fibers thin- to thick-walled, parenchyma paratracheal vasicentric ray width 2-3 seriate, partially vascular bundles remaining,homocellular with square cells.

Xylem-Code

See annex

Phloem

Between rays with ray dilatations uniform phloem and cortex. With a few prismatic crystals and laticifers.

Explanations

For explanations please see the Feature Characteristics.

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

                              back to the start page   |   back to the list