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

USDA United States National Fungus Collections
Catalog #: BPI 404032
Dearness J. s.n. 00 August 1907
Marssonina populi (Lib.) Magnus
Canada, Ontario, London

USDA United States National Fungus Collections
Catalog #: BPI 404038
Dearness J. s.n. 00 August 1907
Marssonina populi (Lib.) Magnus
Canada, Ontario, London

USDA United States National Fungus Collections
Catalog #: BPI 964127
Dearness J. #s.n. 00 August 1907
Marssonia populi (Lib.) Sacc.
Canada, Ontario, London

Brown University Herbarium
Catalog #: CBRU00001164
J Dearness s.n. 00 August 1907
Marsonia populi
Canada, Ontario, London;

Purdue University, Kriebel Herbarium
Catalog #: PUL00020326
J Dearness s.n. 00 August 1907
Marsonia populi
Canada, Ontario, London;

Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-2435
J. Dearness s.n. 00 August 1907
Marssonina populi (Lib.) Magnus
Canada, Ontario, London;

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP3499
J. Dearness s.n. 00 August 1907
Marssonia populi (Lib.) Sacc.
Canada, Ontario, London

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00058286
J. Dearness s.n. 00 August 1907
Marssonia populi (Lib.) Sacc.
Canada, London; London

Chrysler Herbarium - Mycological Collection
Catalog #: CHRB-F-0010832
J. Dearness s.n. 00 August 1907
Marsonia populi
Canada, Ontario, London;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0227328
J. Dearness s.n. 00 August 1907
Marsonia pouli
Canada, London;

University of Michigan Herbarium
Catalog #: 325403
J. Dearness #s. n. 00 August 1907
Marssonia populi (Lib.) Sacc.
Canada, Ontario, London.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0022157
J. Dearness #s.n. 00 August 1907
Marssonina populi (Lib.) Magnus
Canada, Ontario, London;

Clemson University Herbarium
Catalog #: CLEMS-F0003891
J. Dearness #s.n. 00 August 1907
Marsonia populi
Canada, London; London; 42.983333 -81.25