Peronospora arabidis-glabrae Gäumann, 1918

on Arabis

gall

the plant is disfigured, leaves often are small, pale, their margins bent downwards. Underside of the leaves with a thin greyish-white bloom of fungus, consisting of vertical, apically several times dichotomously branched conidiophores.

hostplants

Brassicaceae, narrowly monophahous

Arabis glabra.

synonyms

P. ochroleuca Cesadola, 1855, cited by Brandenburger and Buhr, is listed by the Index Fungorum (2015) as an independent species, but is understood by Klenke & Scholler as a synonym of arabidis-glabrae.

references

Brandenburger (1985a: 180), Buhr (1964b), Doppelbaur & Doppelbaur (1974a), Hafellner (1980a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Negrean (1996b), Săvulescu (1948a).