Light micrograph of a seed grain of Common field speedwell, Veronica persica, showing a pale white, sculptured seed grain. Microscopic contrast technique : Incident lighting. Magnification 30x when printed 10 centimetres wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Guenther, Gerd |
Taille de l’image : | 5616 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |