NUMMULARIA ANNULATA REHM
This name is a synonym of Hypoxylon stygium (Lév.) Sacc. var. annulatum (Rehm) Y.-M. Ju & J. D. Rogers. To take a look at the description (and images) of H. stygium (Lév.) Sacc. var. annulatum (Rehm) Y.-M. Ju & J. D. Rogers, click here.
