Common Script Lichen

Graphis scripta is a crustose lichen in the family Graphidaceae. It is commonly called script lichen, secret writing lichen, or similar names, because its growth pattern makes it look like writing. Stigmidium microspilum and Arthonia graphidicola are associated lichenicolous fungi. It is variable with either curved or stellate apothecia. The margins are carbonaceous and raised, without furrows. Mature ascospores are without colour, but become brown with age.