Female pine cone scale. Light micrograph of a section through a scale from a young ovulate female pine (Pinus sp.) cone,bearing an ovule (upper centre). The ovuliferous scale (purple) sits under the archegonium,which is enclosed by two integuments - the outer (blue-grey) and the inner (large cells,blue). The ovule (blue) develops several archegonia each with one egg (brown). Magnification: x13 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 5444 px × 3217 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |