Ellis, N. Amer. Fungi
J.B. Ellis [1 - 1500, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 958836
s.n.
Didymium microcarpum (Fr.) Rostaf.

University of Illinois Herbarium
Catalog #: ILL00098641
H Wingate s.n.
Didymium microcarpon var. nigripes
United States, Pennsylvania, Philadelphia, Philadelphia; Philadelphia

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0088172
H Wingate s.n.
Didymium microcarpon var. nigripes
United States, Pennsylvania, Philadelphia, Philadelphia

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000228113
H. Wingate #1393
Didymium microcarpon var. nigripes
United States, Pennsylvania, Philadelphia, Fairmount Park

University of Michigan Herbarium
Catalog #: 333841
H. Wingate #s. n.
Didymium microcarpum (Fr.) Rostaf.
USA, Pennsylvania, Philadelphia, Philadelphia.

Academy of Natural Sciences of Drexel University
Catalog #: PH00314150
H. Wingate #s.n.
Didymium microcarpon var. nigripes (Fries) Rostafinsky
United States, Pennsylvania, Philadelphia, Philadelphia

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0258332
Harold Wingate s.n.
Didymium microcarpon nigripes
United States, Pennsylvania, Philadelphia; Fairmount

Academy of Natural Sciences of Drexel University
Catalog #: PH00300101
Harold Wingate #s.n.
Didymium microcarpum (Fr.) Rostaf.
United States, Pennsylvania, Philadelphia, Fairmount Park, Philadelphia