Peronospora lepigoni Fuckel, 1863

on Spergularia

Peronospora lepigoni on Spergularia rubra

Spergularia rubra, Belgium, prov. Limbourg, Zelem, Vallei van de Zwarte Beek, Loboskasteel, 3.ix.2019 © Carina Van Steenwinkel

Peronospora lepigoni on Spergularia rubra

detail

Peronospora lepigoni : conidiophores

conidiophores

Peronospora lepigoni : conidiophore

conidiophore

Peronospora lepigoni : conidia

two conidia

gall

leaves pale, may be disfigured. Oospores are formed in the swollen flower buds. Underside with a greyish purple down, consisting of vertical conidiophores that apically several times are dichotomously branching, each branch ending upon a conidium.

host plants

Caryophyllaceae, monophagous

Spergularia marina, media, rubra.

synonyms

often taken as a junior synonym of P. obovata. Studies by Choi ao show that both are closely related, but separated, species.

references

Brandenburger (1985a: 97), Buhr (1965a), Choi, Klosterman, Kummer ao (2015a), Doppelbaur, Huber & Poelt (1965a), Jage, Klenke, Kruse ao (2016a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kruse (2019a), Kummer (2012a), Müller & Kokeš (2008a), Săvulescu (1948a).

mod 6.ix.2019