K.W. Krieger [1-2500]

Cornell University Plant Pathology Herbarium
Catalog #: Krieger,F.Sax.1211
s.n.
Sphaerotheca

USDA United States National Fungus Collections
Catalog #: BPI 979497
s.n.
Sphaerotheca castagnei Lév.
Germany

USDA United States National Fungus Collections
Catalog #: BPI 604236
Krieger W. s.n. 30 September 1892
Sphaerotheca castagnei Lév.
Germany, Saxony, Teiche in Coswig, near Meissen

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0082668
W. Krieger #s.n. 30 September 1892
Sphaerotheca humuli (DC.) Burrill