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

Purdue University, Kriebel Herbarium
Catalog #: PUL00020880
Dearness, J #PUL F6322 06 June 1911
Rhysotheca obducens (J. Schröt.) G.W. Wilson
Canada, Ontario, London; London

USDA United States National Fungus Collections
Catalog #: BPI 784591
Dearness, J. #5343 06 June 1911
Plasmopara obducens (J. Schröt.) J. Schröt.
Canada, Ontario, London

USDA United States National Fungus Collections
Catalog #: BPI 965538
Dearness, J. #s.n. 06 June 1911
Plasmopara obducens (J. Schröt.) J. Schröt.
Canada, Ontario, London

USDA United States National Fungus Collections
Catalog #: BPI 965638
Dearness, J. #s.n. 06 June 1911
Plasmopara obducens (J. Schröt.) J. Schröt.
Canada, Ontario, London

Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-3477
J. Dearness s.n. 06 June 1911
Rhysotheca obducens (J. Schröter) G.W. Wilson
Canada, Ontario, London;

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP10512
J. Dearness s.n. 06 June 1911
Rhysotheca obducens (J. Schröter) G.W. Wilson
Canada, Ontario, London

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0250214
J. Dearness s.n. 06 June 1911
Rhysotheca obducens (J. Schröter) G.W. Wilson
Canada, Ontario, London;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000288621
J. Dearness #3477 06 June 1911
Rhysotheca obducens (Schrot.) Wils.
Canada, Ontario, London

University of Florida Herbarium
Catalog #: FLAS-F-12865
J. Dearness #s. n. 06 June 1911
Rhysotheca obducens (J. Schröter) G.W. Wilson
Canada, Ontario, Middlesex, London.

University of Michigan Herbarium
Catalog #: 336750
J. Dearness #s. n. 06 June 1911
Rhysotheca obducens (J. Schröt.) G.W. Wilson
Canada, Ontario, London.

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0032296
J. Dearness #s.n. 06 June 1911
Plasmopara obducens Schroet.
Canada, Ontario, London;