Peronospora minima Wilson, 1914

on Saxifraga

gall

upper side of the leaf with pale spots. Underside locally with a grey fungal down of erect conidiophores that apically several times are dichotomously branching, each branch ending upon an egg-shaped conidium.

hostplants

Saxifragaceae, narrowly monofaag

Saxifraga cernua.

references

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

10/09/2015