Pine pollen grains. Light micrograph of a section through winged pollen grains (microspores) from a pine (Pinus sp.) tree. The wings (light blue) are like two air balloons that keep the grains in the air currents and enable them to be spread over a greater distance. Magnification: x138 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wheeler, Dr. Keith |
Bildgröße: | 5462 px × 3216 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |