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).