Petrak, Crypt. Exs.
F. Petrak [3201- 4700]

USDA United States National Fungus Collections
Catalog #: BPI 1042213
s.n.
Rhopographella clavispora (Cooke & Peck) Sacc.
United States

USDA United States National Fungus Collections
Catalog #: BPI 1042265
s.n.
Rhopographus clavisporus (Cooke & Peck) Sacc.
United States

Field Museum of Natural History
Catalog #: C0242869F
23237f61-9550-45f3-b910-4dbcf85cb233
J. F. Brenckle #s.n.
Rhopographus clavisporus (Cooke & Peck) Sacc. (Cooke & Peck) Sacc.
U.S.A., South Dakota, Spink, Northville; Northville