Plant Parasites of Europe

leafminers, galls and fungi

Sorosphaerula veronicae

Sorosphaerula veronicae (Schröter) Neuhauser & Kirchmair, 2011

on Veronica

Sorosphaerula veronicae on Veronica spec.

Veronica spec., Belgium, prov. Limbourg, Diepenbeek, Dorpsbeemden, 25.iv.2021 © Carina Van Steenwinkel

Sorosphaerula veronicae on Veronica spec.

swelling sometimes large and smooth

Sorosphaerula veronicae on Veronica spec.

or quite small

Sorosphaerula veronicae on Veronica spec.

when ripe they contain a mass of spores resembling brown sugar

Sorosphaerula veronicae on Veronica spec.

detail of the mass of spores

Sorosphaerula veronicae on Veronica spec.

the spores actually are spore balls

Sorosphaerula veronicae on Veronica spec.

a single spore ball

Sorosphaerula veronicae on Veronica spec.

the spore balls measure 20-25 µm; some are more oval, measuring 20-24 x 22-27.5 µm.

Sorosphaerula veronicae: galls on Veronica persica

Veronica persica, Belgium, prov. Namur, Couvin, 5.iv.2015 © Sébastien Carbonnelle

gall

massive, up to 4 mm thick swelling of the stems, also veins and petioles; inside a cinnamon-coloured mass of spore balls.

host plants

Plantaginaceae, monophagous

Veronica arvensis, catenata, chamaedrys, filiformis, fruticans, hederifolia, persica, polita, triphyllos.

synonyms

Sorosphaera veronicae Schröter, 1886.

references

Blomfield & Schwartz (1910a), Brandenburger (1985a: 575, 896), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Klenke & Scholler (2015a), Neuhauser, Kirchmair & Huber (2005a), Preece (2002a), Redfern & Shirley (2011a), Roskam (2009a).

Last modified 8.v.2021