Peronospora lithospermi Gäumann, 1923

on Aegonychon, Buglossoides, Lithospermum

gall

leaf upperside with pale spots, margins rolled downwards, underside with a greyish-violet cover of erect, up to 0.5 mm high conidiophores that distally are several times dichotomously branched. At each tip an ovoid conidium.

hostplants

Boraginaceae, oligophagous

Aegonychon purpurocaeruleum; Buglossoides arvensis; Lithospermum officinale.

references

Brandenburger (1985a), Buhr (1964b), Doppelbaur, Huber & Poelt (1965a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Müller & Kokeš (2008a), Săvulescu (1948a).

21/05/2017

mod 1.ix.2018