Hypericum rust. Rust spots on the leaves of a Hypericum sp. plant caused by the parasitic fungus Melampsora hypericorum. The rust-coloured areas are formed by the fungal spores (reproductive cells) rupturing the epidermal layers of the leaf. This reduces the plant's ability to photosynthesize and can severely stunt growth | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kidd, Geoff |
Taille de l’image : | 3777 px × 4961 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |