Fungi: Ascomycota - Erysiphales - mildew Podosphaera epilobii (Sphaerotheca epilobii) Photographs on Epilobium hirsutum, Great Willowherb Hosts: Epilobium spp. and Chamerion angustifolium

Podosphaera epilobii
Upton Country Park, Dorset. September 2017