Peronospora paula Gustavsson, 1959
on Cerastium
Cerastium fontanum subsp. vulgare, Belgium, prov. Limburg, Genk, Diepenbekerbos © Carina Van Steenwinkel
infected leaves, upperside
hypophyllous down
conidiophore
crown
conidia 12-14 x (15)-16-(17) µm
gall
upperside of the leaves with paled, slightly embossed patches; at the corresponding underside a greyish white fungal bloom, consisting of erect, distally strongly branched conidiophores. The conidia measure 12-18 x 15-20 µm.
host plants
Caryophyllaceae, narrowly monofaag
Cerastium fontanum subsp. vulgare, pumilum subsp. glutinosum, semidecandrum.
references
Belbahri, Calmin, Pawlowski & Lefort (2005a), Brandenburger (1985a: 99), Buhr (1964b), Chater, Woods, Stringer, ao (2020a), Doppelbaur & Doppelbaur (1974a), Doppelbaur, Huber & Poelt (1965a), Ellis & Ellis (1987a), Gustavsson (1991a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2019a), Müller & Kokeš (2008a), Tomasi (2014a), Voglmayr (2003a).