Peronospora digitalis Gäumann, 1923
on Digitalis
Digitalis purpurea, Belgium, prov. Antwerp, Balen, Griesbroek, 16.v.2019 © Carina Van Steenwinkel
leaf with beginning infestation
same leaf, underside
heavily infested leaf
same leaf, underside
conidiophore
conidium
gall
leaves with brownish spots. Their underside with a greyish-white to brownish violet down, consisting of erect conidiophores that apically several times are branching, each branch ending in a conidium.
host plants
Plantaginaceae, monophagous
Digitalis grandiflora, lutea, purpurea.
synonyms
the much-used spelling “digitalidis” is not correct (Index Fungorum, 2015).
references
Brandenburger (1985a: 564), Buhr (1956b), Chater, Woods, Stringer, ao (2020a), Dietrich (2013a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Kruse (2019a), Müller (2015a), Müller & Kokeš (2008a), Negrean (1995a)