Rehm, Ascomyc.
H. Rehm [1-2175, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 1005190
s.n.
Erysiphe horridula (Wallr.) Rabenh.
Germany

Academy of Natural Sciences of Drexel University
Catalog #: PH00302458
#s.n.
Erysiphe cichoracearum DC.
Germany, Bavaria, Augsburg