Anonymous, Calif. Fungi
Herbarium of the University of California. [1- ? 1425]

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.00786
s.n.
Marssonina populi (Lib.) Magnus

University of North Carolina at Chapel Hill Herbarium
Catalog #: NCU-F-0026478
Bonar, Lee #s.n. 15 August 1949
Marssonina populi (Lib.) Magnus
United States, Oregon, Klamath, Denny Creek, 19 miles northwest of Klamath Falls

University of California Berkeley, University Herbarium
Catalog #: UC790677
L. Bonar s.n. 15 August 1949
Marssonina populi (Lib.) Magnus
USA, Oregon, Denny Creek, nineteen miles north west of Klamath Falls