Peronospora cortusae Gäumann & Blumer, 1947

on Cortusa

gall

upper side of the leaf pale; underside with a brownish purple fungal down of erect conidiophores that apically several times are dichotomously branching, each branch acutely ending upon a conidium.

hostplants

Primulaceae, monophagous

Cortusa matthioli.

references

Blumer (1946a), Brandenburger (1985a), Gäumann & Blumer (1947a), Klenke & Scholler (2015a).

mod 24.viii.2017