Clematis columbianae Nutall.

Ranunculaceae


Morphology

liana

Ecology

Mountain and subalpine, medium site

Chorology

Rocky mountains

Xylem

Distinct rings in wedge-like radial vascular bundles, semi-ring porous, vessels in groups, earlywood vessel diameter 50-90µm, fibers with distinct big (3 µm)round, bordered pits, simple perforations, round intervascular pits, parenchyma paratracheal and marginal, vascular bundles rayless, very large rays (dilatation) between the bundles.

Xylem-Code

See annex

Phloem

Bands sieve elements alternating with parenchyma cells, tangentially arranged in a thin walled parenchymatic tissue. Many phellem bands.

Explanations

For explanations please see the Feature Characteristics.

Cross section
   
Tangential section
 
Radial section
 

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