P. Sydow and W. Zopf [1-4900]
USDA United States National Fungus Collections
P. Sydow #s. n. 00 October 1895
Exoascus betulae Fuckel
Germany, Lichterfelde bei Berlin
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USDA United States National Fungus Collections
Sydow P. s.n. 00 October 1835
Taphrina betulae (Fuckel) Johanson
Germany, Berlin
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