Graphis

Graphis is a genus of lichen-forming fungi in the family Graphidaceae. Historically, Graphis was used as a broad category for species with colourless, transversely septate ascospores within the Graphidaceae. However, with advances in genetic research, this classification has become more refined. As a result, species previously classified under Graphina have been re-assigned to Allographa or Graphis. The species complex around Graphis scripta has also been recognised, leading to the identification of several new species, many of which may have been previously overlooked....read more on Wikipedia.