Peronospora violacea Berkeley, 1860

on Dipsacus, Knautia, Scabiosa

gall

flowerheads and the individual flowers strongly disfigured. On the flowers small fungus colonies, consisting of erect, distally repeatedly dichotomously branched conidiophores; the conidia measure 17-19 x 40-39 µm.

hostplants

Caprifoliaceae, oligophagous

Dipsacus fullonum, laciniatus, pilosus; Knautia arvensis, dipsacifolia, drymeia, kitaibelii; Scabiosa columbaria, graminifolia, lucida, ochroleuca; Succisa pratensis.

references

Brandenburger (1985a), Buhr (1964b, 1965a), Dauphin & Aniotsbehere (1997a), Doppelbaur & Doppelbaur (1974a), Doppelbaur, Huber & Poelt (1965a), Ellis & Ellis (1997a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), Göker, García-Blázquez, Voglmayr ao (2009a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2016a, 2017a), Jage, Kruse, Kummer ao (2013a), Jage, Scholler & Klenke (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Mayor (1967a), Müller (2015a), Müller & Kokeš (2008a), Redfern & Shirley (2011a), Riethmüller, Voglmayr, Göker, Weiß & Oberwinkler (2002a), Voglmayr (2003a) .

mod 2.ix.2018