Peronospora on Vicia tetrasperma

on smooth tare

Vicia tetrasperma, Belgium, prov. Limbourg, Hasselt, Kermt, 14.vii.2019 © Carina Van Steenwinkel

terminal branches of the conidioiphore

conidia

the parasite itseldf was infected by Cladosporium uredinicola

another image

gall

Infected plants look pale and diseased. Undersides of the leaves, tendrils, stems and pods with a brownish-violet down, consisting of erect conidiophores that apically several times are dichotomously branching, each terminal branch ending in a conidium.

host plants

Fabaceae, narrowly monophagous

Vicia tetrasperma.

notes

The species has been recognised by Cunnington, but is still awaiting a formal description and a name.

references

Cunnington (2006a), Klenke & Scholler (2015a).