Podosphaera fusca is a fungus that parasitically infects plants (a phytopathogen). It is the cause of powdery mildew in the genus Doronicum.
P. fusca was formerly considered synonymous with Podosphaera xanthii, First published online 9 December 2008, . but due to, mainly, the smaller ascomata and smaller oculi than P. xanthii, it was deemed a separate species. While P. xanthii remains a large species complex (with P. xanthii s.s. on Xanthium), P. fusca is now very narrowly defined.
References