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 959127
s.n.
Sphaerella umbellulariae Cooke & Harkn.
United States

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00060540
Dr. H. W. Harkness s.n.
Mycosphaerella umbellularia
United States, California, Tamalpais;

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00080628
Dr. H. W. Harkness s.n.
Sphaerella umbellulariae Cooke & Harkn.
United States, California, Tamalpais;

Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0254963
Dr. H.W. Harkness s.n.
Sphaerella umbellulariae Cooke & Harkn.
United States, California, Tamalpais;

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000228581
H. W. Harkness #1680
Sphaerella umbellulariae Cooke & Harkn.
USA, California, Marin, Tamalpais

USDA United States National Fungus Collections
Catalog #: BPI 609907
Harkness H. W. s.n.
Mycosphaerella umbellulariae (Cooke & Harkn.) Lindau
United States, California, Tamalpais

University of Illinois Herbarium
Catalog #: ILL00098958
HW Harkness s.n.
Sphaerella umbellularia
United States, California, Marin, Tamalpais; Tamalpais

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0088479
HW Harkness s.n.
Sphaerella umbellularia
United States, California, Marin, Tamalpais