Ascomyceten #1950
Rehm, Ascomyc.
H. Rehm [1-2175, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 560337
Dearness s.n. 00 October 1910
Erysiphe cichoracearum DC.
Canada, Ontario, London

Cornell University, Plant Pathology Herbarium
Catalog #: CUP-F-0866
J. Dearness #3161 00 October 1910
Erysiphe cichoracearum f. eupatorii
Canada, Ontario, London;