Peronospora potentillae-reptantis Gäumann, 1923

on Potentilla

gall

leaves with irregular violet spots. Their underside with a greyish-white down, consisting of erect conidiophores that apically several times are dichotomously branching, each branch ending upon a ± globular conidium.

hostplants

Rosaceae, narrowly monophagous

Potentilla anglica, chrysantha, haynalidana, reptans, supina.

references

Brandenburger (1985a: 234), Doppelbaur, Huber & Poelt (1965a), Gustavsson (1959a), Jage, Klenke, Kruse ao (2017a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kruse (2014a), Müller & Kokeš (2008a), Săvulescu (1948a).