Discogloeum veronicae (Libert) Petrak, 1929

on Veronica

Discogloeum veronicae on Veronica persica

Veronica persica, Belgium, prov. Liège, Thier de Lanaye, 16.iv.2019 © Carina Van Steenwinkel

Discogloeum veronicae: leaf spots

the leaf spots are conspicuously small

Discogloeum veronicae on Veronica persica stem

also on the stems

Discogloeum veronicae: conidia

conidia

Discogloeum veronicae: conidia

some conidia clearly have two oil droplets

Discogloeum veronicae: conidia

conidia, high magnification

parasite

Leaf spots tiny, roundish. Conidia 3-5 x 14-20 µm, cylindric, with rounded apices, partly biguttulate.

host plants

Plantaginaceae, monophagous

Veronica austriaca subsp. teucrium, hederifolia, officinalis, persica, spicata.

distribution within Europe

(PESI, 2019).

references

Brandenburger (1985a: 578), Ellis & Ellis (1997a), Grove (1937a), Ruszkiewicz-Michalska (2006a).

mod 19.iv.2019