Peronospora chenopodii-rubri Gäumann, 1919

on Chenopodium, Dysphania

parasite

underside of the leaves with a yellowish white fungal down consisting of vertical conidiophores that apically several times are dichotomously branching, each branch ending upon an elliptic conidium.

host plants

Amaranthaceae, narrowly oligophagous

Chenopodium rubrum; Dysphania botrys.

references

Jage, Klenke, Kruse ao (2017a).

mod 31.viii.2018