Wood of the Scots pine
Bildnummer 11536422
| Scanning electron micrograph of the wood (secondary xylem) of the Scots pine,Pinus sylvestris showing both vertical (bottom) & horizontal (top) cut surfaces. The large-celled wood at right is early (spring) growth; the late wood (left) has small,thick- walled cells and is much denser. The vertical tube- like structures seen in both early and late wood are tracheids. In softwoods like pine,these carry out both sap- conducting and mechanical functions; the large early tracheids are primarily concerned with conduction,whereas the much smaller late ones act primarily as structural elements. Magnification: x60 at 8x10 inch size | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Burgess, Dr. Jeremy |
| Bildgröße: | 5189 px × 3569 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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