Horsetail cone,light micrograph. Longitudinal section through a young cone (strobilus) of the rough horsetail (Equisetum hyemale). This is an off-centre section,not passing through the central axis. The structures making up most of the cone are sporophylls consisting of a stalk bearing numerous sack-like hanging sporangia containing the spores. The sporangia consist of large cells (light blue) containing spores (red-black dots). The smaller,hexagonal areas are the stalks. Magnification: x14 when printed at 10 centimetres high | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 3780 px × 7444 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |