Plasmopara peucedani Nannfeldt, 1939
on Dichoropetalum, Peucedanum

Peucedanum palustre, Belgium, prov. Limburg, Koersel, Vallei van de Zwarte Beek © Carina Van Steenwinkel

underside of an infected leaf segment

conidiophore

ultimate branches

conidium
gall
leaves at the upper side with angular yellow, eventually brown, spots. At the underside a white fungal down of erect conidiophores that apically bear a few short branches, each one ending upon an almost globular conidium.
hostplants
Apiaceae, narrowly oligophagous
Dichoropetalum carvifolia; Peucedanum alsaticum, austriacum, cervaria, oreoselinum, palustre, venetum.
references
Brandenburger (1985a: 452), Doppelbaur, Huber & Poelt (1965a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Mayor (1967a), Melzer, Pittoni, Poelt & Scheuer (1984a).