Species List

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Fagus sylvatica L.




Transversal section

  Diffuse-porous to semi-ring-porous. Very numerous solitary and clustered pores in the earlywood, more often solitary in latewood. Earlywood pores sometimes with gum tyloses or gum inclusions. Thick-walled fibres. Apotracheal parenchyma diffuse as well in small, sparse, tangential to oblique bands or aggregates. Large rays generally distended along growth ring boundaries.

Radial section

  Simple perforation plates and occasional scalariform with up to 20 bars. Rarely with very fine spiral thickenings. Rays homogeneous to slightly heterogeneous with sqare marginal cells. Presence of transition forms from bordered pits to scalariform perforations occur frequently. Ground tissue composed of fibre-tracheids.

Tangential section

  Uniseriate to multiseriate rays (up to 0.5 mm wide, 20 cells and 3 to 5 mm high). Frequent sclerotic cells in the center of large rays.

Key characters

  Diffuse- to semi-ring-porous. Very large rays.


  Confusion with Prunus avium is possible in transversal section, however P. avium has uniquely simple perforation plates and typically widely spaced spiral thickenings.

  © / authors / citation / 03.05.06