Coleroa circinans (Fries) Winter, 1885

on Geranium

gall

darkened leaf spots with irregular groups of dark brown erumpent globular perithecia, ± 0.1 mm in size, bearing black setae.

host plants

Geraniaceae, monophagous

Geranium dissectum, molle, pusillum, rotundifolium.

references

Brandenburger (1985a), Ellis & Ellis (1997a), Kruse (2019a), Negrean (1995a).

mod 28.vii.2019