Morphology

Ch, succulent plant, 15 - 25 cm

Ecology

Subtropical, thermophile zone

Chorology

Canary Islands, Gomera

Xylem

Indistinct rings, solitary vessels in the first part of the ring, vessels absent in the second part = intra-annual tangential bands of fibers, pervasive parenchyma in the first part of the ring, whole ring Rayless (= difference to Sempervivum tectorum and Jovibarba), crystal sand present.

Xylem-Code

See annex

Phloem

Distinct sieve cell groups, parenchyma in radial rows, with crystal sand in the phloem and the pith, often in idioblasts.

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