Peronospora swinglei Ellis & Kellerman, 1887
on Salvia
gall
brownish angular leaf spots; at the underside a greyish-purple fungal down, consisting of tree-like conidiophores, each terminal branch ending in a ± globular conidium.
hostplants
Laminaceae, monophagous
Salvia officinalis, pratensis, reflexa, sclarea, verticillata, viridis.
According to Choi ao only on S. reflexa!
notes
Originally a North American species.
references
Brandenburger (1985a: 540), Choi, Shin & Thines (2009a), Doppelbaur & Doppelbaur (1974a), Klenke & Scholler (2015a), Melzer, Pittoni, Poelt & Scheuer (1984a), Müller (1999a), Müller & Kokeš (2008a).