Anonymous, Calif. Fungi
Herbarium of the University of California. [1- ? 1425]

USDA United States National Fungus Collections
Catalog #: BPI 948005
s.n.
Sphaerotheca humuli (DC.) Burrill
United States, California

Field Museum of Natural History
Catalog #: C0286360F
72996def-4fc6-400f-831e-bc4262711af3
H. E. Parks #s.n. 00 July 1924
Sphaerotheca humuli (DC.) Burrill (DC.) Burrill
U.S.A., California, Alameda, Berkeley; Berkeley, University of California Botanical Garden

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0056033
H. E. Parks #s.n. 00 July 1924
Sphaerotheca humuli (DC.) Burrill
United States, California, Alameda, Berkeley; Botany Garden, University of California