On leaves of Ox-eye Daisy, Chrysanthemum leucanthemum.
Spots well defined, dark, equally conspicous upon both sides of the leaf; pycnidia scattered, ellipsoid, 70-160 micrometers pale brown; spores often bent with one end blunt, 14-30 by 1.5-2 micrometers, hyaline, 3-5 septate. An ascomycetous fungus also occours in many of the specimens.