Fern (Adiantum capillus-veneris) leaf. Light micrograph of a section through a leaf (horizontal) from a maidenhair fern,showing the sporangia (centre,round),within which spores are produced. Also seen are the upper epidermis (blue) with stomata (pores,green). Beneath this are the parenchyma cells of the palisade mesophyll (green-yellow),containing chloroplasts,and spongy mesophyll (yellow). Magnification: x37 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 5368 px × 3579 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |