Light micrograph of a transverse section through a young sycamore stem,Acer pseudoplatanus. The stem is composed of concentric layers of different types of tissue. Starting from the centre and working outwards these are: the pith or medullary parenchyma (blue,large-celled,centre),xylem (pink & white with fibrous appearance),phloem (dark band),phloem fibres (broken pink band),cortex (dark band) and,finally,the epidermis (thin outer "skin"). Magnification: x4 at 35mm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kirby, Richard / David Spears |
Bildgröße: | 4750 px × 3514 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |