L. Fuckel [1-2700]
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Cornell University Plant Pathology Herbarium
Catalog #: Barb.-Boiss.1003
s.n.
Rhytisma salicinum f. umbonatum (Hoppe) Rabenh.
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Canadian National Mycological Herbarium
Catalog #: 26366
02-01000657225
Dreesen s.n.
Rhytisma salicinum var. umbonatum ined.
Germany, In monte Venusberg prope Bonnam
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