Peronospora grisea (Unger) de Bary, 1863

on Veronica

gall

leaves pale, may be disfigured. Underside with a greyish-violet down, consisting of 0.4 mm high erect conidiophores that apically several times are dichotomously branching, each terminal branch ending in an ovoid conidium.

hostplants

Plantaginaceae, monophagous

Veronica alpina subsp.pumila, austriaca subsp. teucrium, beccabunga, bellidioides, fruticans, fruticulosa, longifolia, maritima, officinalis, opaca, prostrata, repens, salicifolia, scutellata, serpyllifolia, speciosa.

synonyms

Peronospora palustris Gäumann, 1918; P. saxatilis Gäumann, 1918; P. verna Gäumann, 1918.
P. palustris has been resurrected by Jage, Klenke, Kruse ao (2017a), with V. scutellata as only host plant (mentioned); no argumentation, reference or description is presented.

references

Belbahri, Calmin, Pawlowski & Lefort (2005a), Blumer (1946a), Brandenburger (1985a), Buhr (1965a), Cunnington (2008a), Doppelbaur & Doppelbaur (1973a, 1974a), Doppelbaur, Huber & Poelt (1965a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), Göker, García-Blázquez, Voglmayr ao (2009a), Göker, Voglmayr, Riethmüller ao (2003a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2014a), Maire (1943a), Müller & Kokeš (2008a), Müller (2015a), Mułenko, Kozłowska, Bacigálová ao (2014a), Negrean (1995a), Negrean, Constantinescu & Denchev (2004a), Riethmüller, Voglmayr, Göker ao (2002a), Ruszkiewicz-Michalska (2006a), Săvulescu (1948a), Tomasi (2014a), Voglmayr (2003a).

mod 1.ix.2018