Petrak, Fl. Bohem. Morav. Exs. Pilze
F. Petrak [1-2575]

Wisconsin State Herbarium, Fungi
Catalog #: WIS-F-0083323
s.n.
Sporonema quercicolum C. Massal.

USDA United States National Fungus Collections
Catalog #: BPI 393113
Petrak F. s.n. 06 January 1919
Sporonema quercicola C. Massal.
Czechoslovakia, Moravia, Hranice (Maehr.-weisskirchen), Ludinabrook