Platythecium is a genus of lichenized fungi in the family Graphidaceae. It contains an estimated 27 species.
Graphis is a genus of lichenized fungi in the family Graphidaceae.
Diorygma is a genus of lichenized fungi in the family Graphidaceae. The genus was circumscribed by Franz Gerhard Eschweiler in 1824. Species of the genus are widely distributed in tropical and subtropical regions of the world.
Acanthothecis is a genus of lichen-forming fungi in the family Graphidaceae. The genus was circumscribed by Frederick Edward Clements in 1909.
Lithothelium is a genus of lichen-forming fungi in the family Pyrenulaceae. Most of the species are found in tropical climates, and are usually corticolous (bark-dwelling) or saxicolous (rock-dwelling). The genus was circumscribed by Swiss botanist Johannes Müller Argoviensis in 1885.
Sclerophyton is a genus of lichen-forming fungi in the family Opegraphaceae. It has about 15 species. The genus was circumscribed by German lichenologist Franz Gerhard Eschweiler in 1824, with Sclerophyton elegans assigned as the type species.
André Aptroot is a Dutch mycologist and lichenologist.
A corticolous lichen is a lichen that grows on bark. This is contrasted with lignicolous lichen, which grows on wood that has had the bark stripped from it, and saxicolous lichen, which grows on rock.
Graphis crebra is a species of corticolous lichen in the family Graphidaceae. It has a pantropical distribution. Like other script lichens, it grows on bark and resembles calligraphy. It can be distinguished from several other similar species by the white pruina (powder) on its apothecial discs.
Graphis plumierae is a species of script lichen in the family Graphidaceae. It was described as new to science in 1915 by Finnish mycologist Edvard Vainio. The type was collected in Gourbeyre, Guadeloupe. In 2016, G. plumierae was reported from Portugal, which was also a new occurrence for Europe.
Allographa is a genus of script lichens in the family Graphidaceae. It has nearly 200 species. Formally circumscribed in 1824 by François Fulgis Chevallier, Allographa was formerly included in Graphis, but was upgraded to generic status in 2018 by lichenologists Klaus Kalb and Robert Lücking.
Chrysothrix flavovirens is a species of crustose and corticolous (bark-dwelling) lichen in the family Chrysotrichaceae. It was formally described as a new species in 1994 by Tor Tønsberg as the sorediate counterpart of the common and widespread Chrysothrix candelaris. The type specimen was collected from Kirkeøy, Norway, where it was found growing on Picea abies. It has a pale greenish-yellow thallus that contains rhizocarpic acid. The lichen is widespread in Europe, and has also been recorded from Japan and North America. In the Atlantic and Mediterranean biogeographic regions of Portugal, it prefers to grow on the acidic bark of coastal conifer trees.
Graphis breussii is a species of script lichen in the family Graphidaceae. Found in Venezuela, it was formally described as a new species in 2009 by Gerhard Neuwirth and Robert Lücking. The type specimen was collected by the first author from Samariapo. Here the lichen was found growing on the bark of dead branches of shrubs growing on granite rocks along the eastern banks of the Orinoco river. Characteristics of the lichen include the large, prominent lirellae with striate labia and a thin thalline cover, a completely carbonized (blackened) exciple, and four submuriform ascospores per ascus. It contains norstictic acid, a lichen product. The specific epithet honours Austrian lichenologist Othmar Breuss.
Heiomasia is a genus of corticolous (bark-dwelling), crustose lichens in the family Graphidaceae. It has five species.
Graphis lueckingii is a species of script lichen in the family Graphidaceae. Found in southern Brazil, it was fornally described as a new species in 2010 by Manuela Dal-Forno and Sionara Eliasaro. The type specimen was collected by the first author in the Pontal do Paraná, where it was found growing on bark in a forest restinga. The species epithet honours lichenologist Robert Lücking.
Graphis desquamescens is a species of script lichen in the family Graphidaceae. It has a broad distribution and can be found in various countries including Brazil, Dominica, the United States, Mexico, and Japan. It also occurs in different parts of Australia such as Queensland, New South Wales, Victoria, and Tasmania. It was reported as new to Myanmar in 2020.
Diaphorographis is a genus of lichen-forming fungi in the family Graphidaceae. It has two species. The genus was circumscribed in 2009 by lichenologists Alan W. Archer and Klaus Kalb, with D. queenslandica as the type species. The genus is distinguished from Graphis by the I– (iodine-negative) ascospores, and from Carbacanthographis) by the absence of periphysoids. Collectively, the genus is found in northern Queensland, New Caledonia, and the Solomon Islands. Although the genus was originally reported to not contain any lichen products, a later reexamination of the type species revealed the presence of protocetraric acid.
Graphis palmicola is a species of script lichen in the family Graphidaceae. Found on the Nicobar Islands, it was formally described as a new species in 2005 by Urmila Makhija and Bharati Adawadkar. The type specimen was collected from a beach forest in Katchal Island, where it was found growing on a coconut tree. The species epithet, which combines the Latin Palma and cola ("exists"), refers to its host. The ascomata of the lichen are in the form of lirellae, which are elongated and irregularly branched; this particular branching pattern is known as the handelii-morph.
Graphis sitapurensis is a species of script lichen in the family Graphidaceae. Found on the Andaman Islands, it was formally described as a new species in 2005 by Urmila Makhija and Bharati Adawadkar. The type specimen was collected from a moist deciduous forest in Sitapur. The species epithet refers to the type locality. The ascomata of the lichen are in the form of lirellae, which are elongated and irregularly branched with a concealed disc; this particular set of characteristics is known as the deserpens-morph.
