Powdery mildew fungus (Phyllactinia fraxini) producing chasmothecia on European ash (Fraxinus excelc
Powdery mildew fungus (Phyllactinia fraxini) producing chasmothecia on European ash (Fraxinus excelcior). -- source link
#fungus#mycology#microscopy#microfungi#plant parasite#plant pathogen#parasite#plant disease#ascomycota#chasmothecia#photography#botany#mycelium#plant pathology