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).

mod 3.vii.2018