H.G. Winter [2601-3600, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 1000478
s.n.
Polyporus leucospongia Cooke & Harkn.

USDA United States National Fungus Collections
Catalog #: BPI 1000479
s.n.
Polyporus leucospongia Cooke & Harkn.

USDA United States National Fungus Collections
Catalog #: BPI 211660
Harkness s.n.
Polyporus leucospongia Cooke & Harkn.
United States, California, Sierra Nevada

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0097629
Harkness #s.n.
Polyporus leucospongia Cooke
USA, California, Sierra, Sierra Nevada