Morphology

H, 15-30m

Ecology

Subalpine, moist site

Chorology

Rocky Mountains

Xylem

Distinct rings, semi-ring porous, vessels solitary and in small clusters, vessel diameter <25-30mµ, scalariform perforations with 5-15 bars, fibers with small round pits (fiber tracheids), vessel frequency 200-500 mm2, reticulate vessel-pitting, fibers missing, paratracheal parenchyma, rayless.

Xylem-Code

See annex

Phloem

Uniform phloem and cortex. Circle of cells with dark substances. Pith with crystal druses.

Explanations

For explanations please see the Feature Characteristics.

Cross section
   
Tangential section
 
Radial section
   
Bark
  

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