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Morphology

tree

Ecology

tropical rain forest

Xylem

Conifer like wood but with large rays. Indistinct ring boundaries, vessels absent, tracheids with big round bordered pits (5-7 µm), arranged predominantly biseriate. Parenchyma apotracheal, diffuse. Rays are uniseriate and multiseriate (3 to 6 cells in width), heterocellular with 1 to 3 square and upright marginal cells. With sheet cells. Pits in marginal ray cells mostly arranged in axial rows. Ray-pits often piceoid (bordered with slit-like apertures). Ray-cells thick-walled.

Xylem-Code

See annex

Phloem

Slide missing

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

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