Peronospora valesiaca Gäumann, 1919

on Euphorbia

gall

upper side of the leaf with pale spots. Underside with a greyish brown down of erect conidiophores that apically several times are dichotomously branching, each branch ending upon an almost globular conidium.

hostplants

Euphorbiaceae, narrowly monofaag

Euphorbia seguieriana.

references

Brandenburger (1985a), Klenke & Scholler (2015a), Săvulescu (1948a).

mod 29.viii.2017