Biscogniauxia discreta Diatrype discreta Hypoxylon discretum Hypoxylon marginatum Nummularia discreta Nummularia excavata Nummularia peziziformis Nummulariella marginata Numulariola discreta Sphaeria discreta Sphaeria excavata Sphaeria marginata Biscogniauxia marginata is a species of fungus in the family Graphostromataceae.

A plant pathogen, it was given its current name by Czech mycologist Zdeněk Pouzar in 1979.

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