List of Graphis (lichen) species

This is a list of species in the genus Graphis, a lichen-forming fungal genus in the family Graphidaceae. Species of Graphis are crustose lichens that form thin, often pale grey or greenish patches on bark (and less often rock), with elongated, slit-like fruiting bodies that trace dark, sometimes branching lines across the surface—an appearance that inspired the common name "script lichens". Graphis is widespread but especially diverse in tropical and subtropical regions, and it was established in 1763 by the French naturalist Michel Adanson.

As of February 2026, Species Fungorum (in the Catalogue of Life) accepts 300 species of Graphis. This article compiles those currently accepted species names; because the genus is actively revised, it is a snapshot that changes as names are synonymized, reinstated, or transferred between genera. Studies using molecular phylogenetics have shown that the traditional, broader use of Graphis grouped together more than one evolutionary lineage, leading to extensive reclassification within Graphidaceae. One major outcome has been the reinstatement of Allographa for a separate script lichen lineage (formalised in 2018), and other former Graphis species have also been reassigned to genera such as Carbacanthographis and Diorygma. Species totals therefore vary with the source consulted—for example, a global key published in 2009 accepted 330 species of Graphis and listed a further 205 names as synonyms—so any list reflects both the taxonomic scope and the date of the underlying classification.