Hyaloperonospora drabae (Gäumann) Choi, Shin & Voglmayer, 2011
on Draba
gall
leaves with pales spots. Underside with a dense white down, consisting of erect conidiophores that apically several times are branching, each branch ending in a conidium.
host plants
Brassicaceae, monophagous
Draba muralis, nemorosa.
synonyms
Peronospora drabae Gäumann, 1918.
notes
On Draba nemoralis both H. norvegica and H. drabae may occur, wich is unusual for the generally narrowly monophagous Peronosporaceae. They usually differ clearly: drabae forms a dens felty down, in norvegica the conidiophores are diffusely scattered.
references
Brandenburger (1985a), Choi, Shin & Voglmayr (2011a), Hafellner (1980a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kruse (2019a).