Plant Parasites of Europe

leafminers, galls and fungi

Cercospora violae

Cercospora violae Saccardo, 1876

on Viola

Cercospora violae on Viola nr reichenbachiana

Viola nr reichenbachiana, Belgium, prov. Antwerp, Retie, Prinsenpark 29.vi.2018 © Carina Van Steenwinkel

Cercospora violae on Viola spec.

same leaf, underside

Cercospora violae: colonies on Viola spec.

kolonies

Cercospora violae: colonies on Viola spec.

detail

Cercospora violae: conidiophores

conidiophores

Cercospora violae: conidia

conidia

Cercospora violae: conidia

conidia

parasite

Colonies amphigenous; conidiophores in bundles, unbranched. Conidia needle-shaped, 4-5 x 70-180 µm, 7-17-septate.

host plants

Violaceae, monophagous

Viola canina, collina, odorata, palustris, reichenbachiana, rupestris, tricolor.

references

Brandenburger (1995a: 393), Ellis & Ellis (1995a), Losa España (1942a), Świderska-Burek (2007a, 2015a), Unamuno (1942a, 1943a).

Last modified 3.vii.2018