A.L. de Jaczewski [1-350]
USDA United States National Fungus Collections
Tranzschel W. s.n.
Ciboria betulae (Woronin) W.L. White
USSR, Beresaika (Nowgorod Prov.)
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University of Wisconsin-Madison Herbarium
W. Tranzschel #s.n.
Sclerotinia betulae Woronin
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