Male pine cone. Light micrograph of a longitudinal section through the male cone (strobilus) of a pine tree (Pinus sp.). The cone has a central axis (light-purple),from which emanate scale leaves (microsporophylls,dark blue to dark red). On their undersides are sporophylls bearing sac-like microsporangia (thin purple walls) full of developing microspores (red). When the wall of a microsporangium splits open the microspores are carried by the wind to the female strobilus. Magnification: x8 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 5001 px × 3527 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |