Peronospora potentillae-anserinae Gäumann, 1923

on Potentilla

gall

upper side of the leaves with angular, elongated, yellowish or brownish spots. Underside with a slight greyish white fungal down, consisting of erect, distally several times dichotomously branched conidiophores, each one ending upon a ± globular conidium.

host plants

Rosaceae, narrowly monophagous

Argentina anserina.

references

Brandenburger (1985a: 234), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kruse, Thiel, Brodtbeck ao (2017a), Săvulescu (1948a).

mod 28.iii.2019