Peronospora calepinae Gäumann, 1918

on Calepina

gall

upperside of the leaves with paled, slightly embossed patches; at the underside a white fungal down, consisting of erect, distally repeatedly dichotomously branched conidiophores.

hostplants

Brassicaceae, monofaag

Calepina irregularis.

references

Brandenburger (1985a), Klenke & Scholler (2015a).