''Graphis scripta'' is a

crustose Crustose is a habit of some types of algae and lichens in which the organism grows tightly appressed to a substrate, forming a biological layer. ''Crustose'' adheres very closely to the substrates at all points. ''Crustose'' is found on rocks a ...

lichen in the family

Graphidaceae The Graphidaceae are a family of lichens in the order Ostropales. Distribution and ecology The vast majority of Graphidaceae species are restricted to the tropics. Most Graphidaceae species are epiphytic (i.e. they grow only on plants). Gene ...

. It is commonly called script lichen, secret writing lichen, or similar names, because its growth pattern makes it looks like writing.The Deeper Teachings of Plant Life, Hugh Macmillan
/ref>
/ref> '' Stigmidium microspilum'' and '' Arthonia graphidicola'' are associated

lichenicolous A lichenicolous fungus is a parasitic fungus that only lives on lichen as the host. A lichenicolous fungus is not the same as the fungus that is the component of the lichen, which is known as a lichenized fungus. They are most commonly specific t ...

fungi. It is variable with either curved or stellate

apothecia An ascocarp, or ascoma (), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are mo ...

. The margins are

carbonaceous Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—its atom making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up o ...

and raised, without furrows. Mature spores are without color, but become brown with age.

References

scripta Scripta may stand for: * Jussi Halla-aho's Finnish-language blog Scripta * The owner of Hungarian-language Romanian newspaper Új Magyar Szó Other Scriptas: * Scripta continua aka word divider * Scripta Mathematica ''Scripta Mathematica'' was ...

Lichen species Lichens described in 1753 Lichens of Asia Lichens of Europe Lichens of North America Taxa named by Carl Linnaeus {{Ostropales-stub