Peronospora saxifragae Bubák, 1903
leaves disfigured, often discoloured yellowish brown. Underside with a brownish purple fungal down of erect conidiophores that apically several times are dichotomously branching, each branch ending upon an egg-shaped conidium.
Saxifragaceae, narrowly monofaag
Brandenburger (1985a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Müller & Kokeš (2008a).