Erysimum nivale Greene) Rydb.

Brassicaceae


Morphology

H, 10-20cm

Ecology

Alpine, dry initial site

Chorology

Colorado, USA

Xylem

Distinct rings, semi-ring porous, vessels in radial multiples, vestured pits, tangential bands with thick walled fibers, paratracheal parenchyma, thin walled parenchyma between vessels, ray width >10 cells, often confluent to fiber tissue.

Xylem-Code

See annex

Phloem

Indistinct tangential layers of collapsed sieve cells, radial rows of parenchyma cells, distinct ray dilatations.

Remarks

Cross section:
Tangential section:
Radial section:
Bark:
Summitville, Colorado, USA

Explanations

For explanations please see the Feature Characteristics.

Cross section
   
Tangential section
 
Bark
 

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