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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00275
s.n.
Microsphaera alni (DC.) G. Winter

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP3919
H. E. Parks s.n. 00 November 1921
Microsphaera alni (DC.) G. Winter
United States, California, Santa Clara, Saratoga

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00059582
H. E. Parks s.n. 00 November 1921
Microsphaera alni (DC.) G. Winter
United States, California, Santa Clara, Saratoga;

Michigan State University Herbarium
Catalog #: MSC0212921
H. E. Parks s.n. 00 November 1921
Microsphaera alni (DC.) G. Winter
United States, California, Santa Clara, Saratoga;

University of Michigan Herbarium
Catalog #: 308423
H. E. Parks #s. n. 00 November 1921
Microsphaera alni (DC.) G. Winter
USA, California, Santa Clara, Saratoga.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0023974
H.E. Parks #s.n. 00 November 1921
Microsphaera alni (DC.) G. Winter
United States, California, Santa Clara, Saratoga

Field Museum of Natural History
Catalog #: C0285807F
H.E. Parks #s.n. 00 November 1921
Microsphaera alni (DC.) G. Winter
USA, California, Santa Clara, Saratoga; Saratoga

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0087714
H.E. Parks #s.n. 00 November 1921
Microsphaera extensa Cooke & Peck
USA, California, Santa Clara, Saratoga;