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

USDA United States National Fungus Collections
Catalog #: BPI 1004990
s.n.
Exoascus alni de Bary
Germany

Academy of Natural Sciences of Drexel University
Catalog #: PH00300355
de Thumen #s.n.
Exoascus alni de Bary
Germany, bei Teplitz in Bohmen

Academy of Natural Sciences of Drexel University
Catalog #: PH00300384
W. Krieger #s.n. 09 February 1884
Exoascus flavus Sadeb.
Germany, Saxony, bei Konigstein e/Elbe (Sachsen)