Frangula alnus Mill.

Rhamnaceae


Morphology

N , 100-300cm

Ecology

hill and mountain

Chorology

eurosibirean

Xylem

Distinct annual rings, semi-ring-porous, vessels in short radial multipels, vessel diameter 50–80mµ, simple perforations, thin helical thickenings, fibers with small pits, fibers thin to thick-walled, not to recognize, rays 2-3 seriate, homogeneous with prostrate cells.

Xylem-Code

See annex

Phloem

Groups of sieve tubes and parenchyma in tangential layers, tangentially arranged groups of thick-walled sclerenchyma. With prismatic crystals.

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