| |
 |
|
|
| |
Carpinus betulus L.
|
Hornbeam
|
Betulaceae
|
| |
 |
| |
Transversal section |
|
|
| |
Diffuse-porous. Pores sparse, in long (2 to 10) radial pore multiples. Growth ring boundaries rather indistinct. Aggregate rays generally but not always present. Diffuse apotracheal parenchyma. |
           
|
| |
| |
Radial section |
|
|
| |
Simple perforation plates. Spiral thickenings delicate. Rays homogeneous and heterogeneous with one or two rows of square to slightly upright marginal cells. Ray-vessel-pits slightly enlarged. Libriform fibres and (only few) fibre-tracheids present. |
   
|
| |
| |
Tangential section |
|
|
| |
Rays usually uni- to biseriate, in aggregate rays sometimes up to 4-seriate. Average height of the uniseriate rays: 10 to 20 cells, multiseriate ray height: up to 40 cells. Occasionally prismatic crystals in enlarged ray cells. |
   
|
| |
| |
Key characters |
|
|
| |
Diffuse-porous. Long radial pore multiples. Aggregate rays, simple perforation plates. |
| |
