J.B. Ellis, B.M. Everhart, and E. Bartholomew [1501-5100, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 605254
Dearness J. s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, Ontario, London

USDA United States National Fungus Collections
Catalog #: BPI 605255
Dearness J. s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, Ontario, London

USDA United States National Fungus Collections
Catalog #: BPI 963681
Dearness J. #s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, Ontario, London

Brown University Herbarium
Catalog #: CBRU00002233
J Dearness s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, Ontario, London;

Purdue University, Kriebel Herbarium
Catalog #: PUL00019894
J Dearness s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, Ontario, London;

Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-2089
J. Dearness s.n. 00 August 1904
Sphaerotheca humuli (DC.) Bur.
Canada, Ontario, London;

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00081169
J. Dearness s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, London;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0221461
J. Dearness s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, London;

Field Museum of Natural History
Catalog #: C0286297F
9593d9a8-e526-4902-a83d-ce1a4f39f08b
J. Dearness #s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill (DC.) Burrill
Canada, Ontario, Middlesex, London; London

Field Museum of Natural History
Catalog #: C0286298F
2c1406a4-e17f-40ab-8e0a-e94b863551df
J. Dearness #s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill (DC.) Burrill
Canada, Ontario, Middlesex, London; London

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0056003
J. Dearness #s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, Ontario, London;

Clemson University Herbarium
Catalog #: CLEMS-F0003546
J. Dearness #s.n. 00 August 1904
Sphaerotheca humuli (DC.) Burrill
Canada, London; London; 42.983333 -81.25