Ascomyceten #1448
Rehm, Ascomyc.
H. Rehm [1-2175, plus extras]

Cornell University, Plant Pathology Herbarium
Catalog #: CUP-F-0850
T. Vestergren #751 00 June 1900
Dothidella betulina f. betulae-nanae (Wahlenb.) Sacc.
Sweden, Lapponia, Porto, Lapponia Lulensis Sueciae.