Peronospora erinicola Durrieu, 1994

on Campanula

gall

upperside of the leaves with paled, slightly embossed patches; at the corresponding underside a greyish white fungal bloom, consisting of erect, distally strongly branched conidiophores.

host plants

Campanulaceae, monofaag

Campanula rapunculoides, rapunculus.

notes

A similar fungal down on the petals is caused by another mildew, viz. Peronospora corollae.

references

Brandenburger (1985a: 603), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a).