K.W. Krieger [1-2500]
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Cornell University Plant Pathology Herbarium
Catalog #: Krieger,F.Sax.0723
s.n.
Sphaerotheca
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USDA United States National Fungus Collections
Catalog #: BPI 978985
s.n.
Sphaerotheca castagnei Lév.
Germany
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USDA United States National Fungus Collections
Catalog #: BPI 604531
Krieger W. s.n. 00 September 1880
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
Germany, Koenigstein
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Purdue University, Kriebel Herbarium
Catalog #: PUL00024994
W Kreiger s.n. 00 September 1880
Sphaerotheca castagnei Lév.
Germany, Saxony, Konigstein;
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0082785
W. Krieger #s.n. 00 September 1880
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
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