Polarised light micrograph of a cross-section of the mature wood of the English. or pendulate, oak (Quercus robur). Oak trees do not bear acorns until they are around 40 years old. The area with larger vessels to the top of the image is earlywood, or springwood, that to the bottom with smaller cells and vessels is latewood, or autumn wood. Magnification: x40 at 10cm wide. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lowry, Steve |
Bildgröße: | 2592 px × 3872 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |