Peronospora tranzscheliana Bakhtin, 1925
on Melampyrum
gall
on brown spots of the corolla grows a greyish purple fungal down consisting of erect conidiophores that apically several times are dichotomously branching, each branch ending upon an elliptic conidium.
hostplants
Orobanchaceae, monophagous
Melampyrum pratense, sylvaticum.
references
Brandenburger (1985a), Göker, García-Blázquez, Voglmayr ao (2009a), Jage, Klenke, Kruse ao (2017a), Klenke & Scholler (2015a), Voglmayr (2003a).