Tranzschelia pruni-spinosae -fungus causing rust disease symptoms on the leaves of a plum tree (Prunusdomestica). Plenty of asexual urediospores are seen in the pictures taken with a microscope.
Two rust fungi onwood anemone (Anemone nemorosa):Ochropsora ariae (white pustules) and Tranzschelia anemones (deformed leaves and dark brown spores).