Thümen, Fungi Austr. Exs.
F.K.A.E.J. de Thümen [1-1200]

Rutgers University, Chrysler Herbarium - Mycology Collection
Catalog #: CHRB-F-0016874
Dr. Sauter. s.n.
Polyporus velutinus E.H.L. Krause

USDA United States National Fungus Collections
Catalog #: BPI 223508
Sauter s.n.
Polyporus velutinus E.H.L. Krause
Austria, Salzburg

University of Illinois Herbarium
Catalog #: ILL00085507
Sauter s.n.
Polyporus velutinus Pers.
Latvia, Latvia