Polarized dark field light micrograph of the stalk of a water milfoil (Myriophyllum sp.) with calcium oxalate crystals (druses). . Druse crystals are a common occurrence in many plants and are usually granular or star-like in shape. The crystals are a defence against herbivores. Magnification: x186 when printed on 10 cm wide. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Mis, Marek |
Taille de l’image : | 4830 px × 7237 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |