Anonymous, Krypt. Exs. [ 1- 100] ; Beck & Zahlbruckner, Krypt. Exs. [101 - 400]
G. Beck and A. Zahlbruckner [1-400, plus extras]

University of Illinois Herbarium
Catalog #: ILL00090129
s.n.
Polyporus frondosus

USDA United States National Fungus Collections
Catalog #: BPI 1040793
s.n.
Polyporus frondosus

USDA United States National Fungus Collections
Catalog #: BPI 208975
Toldt C. s.n. 00 August 0000
Polyporus frondosus
Italy, (formerly Austria) South Tyrol, Varna (Vahrn)

USDA United States National Fungus Collections
Catalog #: BPI 208989
Toldt C. s.n. 00 August 0000
Polyporus frondosus
Italy, (formerly Austria) South Tyrol, near Varna (Vahrn)