Polystigma rubrum (Persoon) de Candolle, 1815

on Prunus

Polystigma rubrum on Prunus cerasifera

Prunus cerasifera, Hungary, Budapest-Hűvösvölgy © László Érsek

Polystigma rubrum on Prunus domestica

Prunus domestica, Hungary, Budapest© László Érsek

Polystigma rubrum on Prunus domestica

detail, upper side

Polystigma rubrum on Prunus domestica

same spots, underside

Polystigma rubrum on Prunus spinosa

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

Polystigma rubrum on Prunus spinosa

detail; the red dots are pycnidia.

Polystigma rubrum: conidia

bundle of hamate conidia

gall

orange stromata on thickened spots of living leaves.

hostplants

Rosaceae, monophagous

Prunus cerasifera, domestica & subsp. insititia, lusitanica, spinosa.

Only occasionally on insititia.

synonyms

Polystigmina rubra (Persoon) Saccardo, 1884.

references

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).

mod 25.iii.2018