| Generic short diagnoses: Black stromatic crusts on living Fagus and Quercus with mostly pycnidial production but esp. on oak a black apothecial state with a slit-like to stellate opening can also be found; ascospores big, ellipsoid. |
Ascodichaena rugosa |
 | Illustration and © Jens H. Petersen Denmark, jhp-06.348 |
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