Ellis & Everhart, N. Amer. Fungi. Ser. II
J.B. Ellis ; B.M. Everhart [1501-3600, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 959630
s.n.
Leptothyrium pomi A. Selby
United States

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00057524
Co. W. W. Calkins s.n.
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Chicago; Chicago

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00057525
Co. W. W. Calkins s.n.
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Chicago; Chicago

Academy of Natural Sciences of Drexel University
Catalog #: PH00309706
W. W. Calkins s.n.
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Cook, Chicago;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000228772
W. W. Calkins #2174
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Cook, Chicago

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0255546
W.W. Calkins s.n.
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Chicago;

Academy of Natural Sciences of Drexel University
Catalog #: PH00323095
W.W. Calkins #s.n
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Cook, Chicago

University of Illinois Herbarium
Catalog #: ILL00099388
WW Calkins s.n.
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Cook, Chicago; Chicago

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0088995
WW Calkins s.n.
Leptothyrium pomi (Mont. & Fr.) Sacc.
United States, Illinois, Cook, Chicago