Peronospora matthiolae Gäumann, 1918

on Matthiola

gall

development of the plant disturbed; upperside of the lef with yellow spots. Underside there with a greyish purple down of 0.5 mm high erect conidiophores that apically several times are branching, each branch ending in a conidium of 9-21 x 12-24 µm.

hostplants

Brassicaceae, monophagous

Matthiola incana.

references

Brandenburger (1985a), Buhr (1964b), Doppelbaur, Huber & Poelt (1965a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Müller & Kokeš (2008a), Săvulescu (1948a), Tomasi (2014a).

mod 31.viii.2018