Sarcographina Maculata
''Sarcographina'' is a genus of script lichens in the family Graphidaceae. It comprises six species. Established in 1887 by the Swiss lichenologist Johannes Müller Argoviensis, these corticolous lichen, bark-dwelling lichens are distinguished by their star-burst colonies of short, curved fruiting structures with jet-black borders and ascospores that staining, stain violet when treated with iodine. Found in humid tropical and warm temperate forests worldwide, they serve as bioindicator, indicators of disturbance (ecology), undisturbed woodland habitats due to their sensitivity to canopy (botany), canopy opening and drought. Taxonomy The genus was circumscription (taxonomy), circumscribed by the Swiss lichenologist Johannes Müller Argoviensis in 1887, with ''Sarcographina cyclospora'' assigned as the type species. In his original description, Müller characterised ''Sarcographina'' by its crustaceous thallus and chrome-coloured , with densely aggregated in spot-like that are ...
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