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

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00081212
B. B. Higgins s.n. 27 September 1912
Sphaerotheca humuli fulignea
United States, New York, Ithaca;

University of Michigan Herbarium
Catalog #: 309415
B. B. Higgins #s. n. 27 September 1912
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
USA, New York, Tompkins, Ithica.

Field Museum of Natural History
Catalog #: C0286259F
a059d5f9-3d5e-403b-b8c0-ce5d49afa7d0
B. B. Higgins #s.n. 27 September 1912
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
U.S.A., New York, Tompkins, Ithaca; Ithaca

Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-4288
B.B. Higgins s.n. 27 September 1912
Sphaerotheca humuli (DC.) Burrill
United States, New York, Tompkins, Ithaca;

University of Florida Herbarium
Catalog #: FLAS-F-01271
B.B. Higgins s.n. 27 September 1912
Sphaerotheca humuli (DC.) Burrill
United States, New York, Tompkins, Ithaca

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0251023
B.B. Higgins s.n. 27 September 1912
Sphaerotheca humuli fuliginea
United States, New York, Ithaca;

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0056436
B.B. Higgins #s.n. 27 September 1912
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
United States, New York, Ithaca;

Brown University Herbarium
Catalog #: CBRU00002255
BB Higgins s.n. 27 September 1912
Sphaerotheca humuli fuliginea
United States, New York, Tompkins, Ithaca;

Purdue University, Kriebel Herbarium
Catalog #: PUL00021268
BB Higgins s.n. 27 September 1912
Sphaerotheca humuli fuliginea
United States, New York, Tompkins, Ithaca;

USDA United States National Fungus Collections
Catalog #: BPI 604321
Higgins B. B. s.n. 27 September 1912
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
United States, New York, Ithaca

USDA United States National Fungus Collections
Catalog #: BPI 604335
Higgins B. B. s.n. 27 September 1912
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
United States, New York, Ithaca

USDA United States National Fungus Collections
Catalog #: BPI 604023
Higgins B. B. #6167 27 September 1912
Sphaerotheca humuli (DC.) Burrill
United States, New York, Ithaca

USDA United States National Fungus Collections
Catalog #: BPI 966450
Higgins B. B. #s.n. 27 September 1912
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
United States, New York, Ithaca