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

Cornell University, Plant Pathology Herbarium
Catalog #: CaliforniaF.01366
s.n.
Harknessia Cooke

University of California Berkeley, University Herbarium
Catalog #: UC1500510
Lee Bonar s.n. 23 May 1973
Harknessia arctostaphyli Cooke & Harkn.
USA, California, Alameda, UC Botanical Garden, Strawberry Canyon