A key is given to all known Central European species of the genus Biscogniauxia O. Kuntze ( = Nummularia L.-R. Tul. et C. Tul.) and the new genus Obolarina Pouz. gen. nov. (type: Nummularia dryophila L.-R. Tul. et C. Tul.). A new species Biscogniauxia querna Pouz. spec. nov. is described from southern Moravia, characterized by broad ascospores with bilateral germination slit.
Pouzar Z. (1986): A key and conspectus of Central European species of Biscogniauxia and Obolarina (Pyrenomycetes). – Česká Mykologie 40(1): 1–10.