Prunus spinosa, Belgium, prov Namur, Nismes, RN les Abannets © Stéphane Claerebout

detail; the red dots are pycnidia.

bundle of hamate conidia

gall

orange stromata on thickened spots of living leaves.

host plants

Rosaceae, oligophagous

Malus sylvestris; Prunus cerasifera, domestica & subsp. insititia, lusitanica, spinosa.

Only occasionally on insititia.

synonyms

Polystigmina rubra (Persoon) Saccardo, 1884.

references

Bahçecioğlu, Kabaktepe & Yildiz (2006a), Blumer (1946a), Brandenburger (1985a), Cannon (1996a), Ellis & Ellis (1997a), Ilie & Marinescu (2011a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Losa España (1942a), Ludwig (1974a), Negrean (1995a), Unamuno (1942a).