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Script Lichens: Nature's Graffiti

Script lichens, also known as graphid lichens, are a fascinating group of lichens characterized by their unique spore-producing structures that resemble writing on their bodies. These tiny lichens typically inhabit the upper layers of tree bark, creating patterns that mimic various scripts.

Nomenclature and Taxonomy

• Scientific Name: Graphis scripta is a well-known species.
• Common Names: Script lichen, secret writing lichen, Common Script Lichen.
• Family: Graphidaceae
• Other Species: Graphis alboscripta (White Script Lichen), Graphis intricata, Graphis dumastoides, Graphis glaucescens, Graphis rufula
• Synonyms Dyplolabia afzelii (Ach.) A. Massal. Afzel's Script Lichen

Distribution and Habitat

• Graphis scripta is widely distributed in the temperate regions of the Northern Hemisphere.
• Graphis alboscripta is endemic to the west coast of Scotland.
• They are commonly found on the bark of various tree types.
• They can be found in wetlands areas.

Morphological Characteristics

• Script lichens are crustose, meaning they form a crust-like layer tightly adhered to the substrate.
• The apothecia (fruiting bodies) are elongated and often branched or curved, resembling writing or hieroglyphics.

Interactions with Other Organisms

• They often grow alongside other lichen species.

Further Information

• Brodo et al.'s "Lichens of North America" (2001, Yale University Press) provides detailed information on Graphis scripta.
• Lichen Flora of the Greater Sonoran Desert Region
• Catalogue of Life: 2012 Annual Checklist