Peronospora cristata Tranzschel, 1902
on Papaver
gall
differs from P. arborescens in the oospore wall. It’s surface is undulate in arborescens, covered with ridges and acute warts in cristata.
hostplants
Papaveraceae, narrowly monophagous
Papaver hybridum.
references
Brandenburger (1985a), García-Blázquez, Constantinescu, Tellería & Martín (2007a), Göker, García-Blázquez, Voglmayr ao (2009a), Klenke & Scholler (2015a), Negrean & Denchev (2000a), Thines, Telle, Ploch & Runge (2009b), Voglmayr, Montes-Borrego & Landa (2014a).