A.B. Seymour and F.S. Earle [1-550, plus extras]

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000249375
B. D. Halsted #252 25 October 1892
Erysiphe polygoni DC.
USA, New Jersey, Piscataway

University of Florida Herbarium
Catalog #: FLAS-F-01485
B. D. Halsted #252 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
USA, New Jersey, Piscataway

Field Museum of Natural History
Catalog #: C0285336F
9a01ae82-e2a2-486a-8ab4-39a18f7ba1c5
B. D. Halsted #s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl. (Wallr.) Schltdl.
U.S.A., New Jersey, Middlesex, Piscataway [Piscatawney]; Piscataway [Piscatawney]

Cornell University, Plant Pathology Herbarium
Catalog #: S.E.,Econ.F.0252
B.D. Halsted s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Middlesex, Piscataway;

Purdue University, Kriebel Herbarium
Catalog #: PUL00028460
Byron D Halsted s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Middlesex, Piscataway;

Washington State University, Charles Gardner Shaw Mycological Herbarium
Catalog #: WSP2339
Byron D. Halsted s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Piscataway

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00052311
Byron D. Halsted s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Piscataway;

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00052319
Byron D. Halsted s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Piscataway;

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00052325
Byron D. Halsted s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Piscataway;

Michigan State University Herbarium
Catalog #: MSC0214467
Byron D. Halsted s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Piscataway;

Louisiana State University, Bernard Lowy Mycological Herbarium
Catalog #: LSU00157602
Byron D. Halsted #s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Middlesex, Piscataway

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0018477
Halsted, Byron D. #s.n. 25 October 1892
Erysiphe communis (Wallr.) Schltdl.
United States, New Jersey, Middlesex, Piscataway, N. J. [New Jersey]