#chasmothecia

Erysiphe symphoricarpi -powdery mildew fungus infecting western snowberry (Symphoricarpos occidentalis). Chasmothecia were densely clustered on the leaves. The appendages of the chasmothecia are clearly dichotomously branched, tips not recurved.

Powdery mildew fungus (Phyllactinia fraxini) producing chasmothecia on European ash (Fraxinus excelcior).

Powdery mildew (Podosphaera aucupariae -fungus) symptoms on rowan tree (Sorbus aucuparia).