Alnus viridis (Chaix) DC

Betulaceae


Morphology

N , 100-300cm

Ecology

subalpine and alpine

Chorology

S-European mountain

Xylem

Distinct rings, diffuse porous, vessels 30-70 ┬Ám in diameter, vessels in radial multipels ray-vessel pits with small apertures, scalariform perforations with >10 bars, fibers thin to thick walled, with tension wood, fibers with small pits, parenchyma apotracheal-diffuse and marginal, rays homocellular, rays uniseriate with prostrate cells.

Xylem-Code

See annex

Phloem

Uniserate layers of sieve-tubes an parenchyma cells, few sclereids in cortext and phloem, with crystal druses. Dense phellem with regularly arranged rectangular cells.

Explanations

For explanations please see the Feature Characteristics.

Cross section
   
Radial section
 

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