The Pyrenulales are an order of ascomycetous fungi within the class Eurotiomycetes and within the subphylum Pezizomycotina.
Cliostomum is a genus of lichenized fungi in the family Ramalinaceae. It has about 25 species.
Arthothelium is a genus of lichenized fungi in the family Arthoniaceae.
Ancistrosporella is a genus of lichen-forming fungi in the family Roccellaceae. The genus was circumscribed in 1995 by Swedish lichenologist Göran Thor, with Ancistrosporella australiensis assigned as the type species.
Anisomeridium is a genus of lichens in the family Monoblastiaceae. The type species was originally named Arthopyrenia xylogena by Swiss botanist Johannes Müller Argoviensis in 1883; in 1928, Maurice Choisy defined the genus Anisomeridium, designating A. xylogena the type species.
Psoroglaena is a genus of lichen-forming fungi in the family Verrucariaceae. The genus was circumscribed by Johann Müller Argoviensis in 1891, with Psoroglaena cubensis assigned as the type species.
Normandina is a genus of lichen-forming fungi in the family Verrucariaceae. It has three species:
Collemopsidium is a genus of fungi in the family Xanthopyreniaceae. Some members of this genus are marine species, and described as "borderline lichens" or "algicolous" fungi. The genus was circumscribed by Finnish botanist William Nylander in 1881.
Punctonora is a genus of lichen-forming fungi in the family Lecanoraceae. The genus was circumscribed in 1997 by lichenologist André Aptroot, with Punctonora nigropulvinata assigned as the type species. A second species was added to the genus in 2018.
Ramonia is a genus of lichenized fungi in the family Gyalectaceae. It contains 24 species. The genus was circumscribed by Ernst Stizenberger in 1862.
Aptrootia is a genus of fungi in the family Trypetheliaceae. It has three species. The genus was circumscribed by Robert Lücking and Harrie Sipman in 2007, with Aptrootia terricola assigned as the type species. This species, originally described by Dutch mycologist André Aptroot as a species of Thelenella, is known from Papua New Guinea and Costa Rica. Later molecular work showed that the species did not belong in Thelenella, but rather, in the Trypetheliaceae, with a sister taxon relationship to a branch including Bathelium and a lineage containing Trypethelium floridanum. The new genus name honours Aptroot, "in recognition of his numerous contributions to tropical lichenology".
Phragmocapnias is a genus of fungi in the family Capnodiaceae.
Wegea is a genus of fungi within the order Arthoniales. The genus has not been placed into a family. This is a monotypic genus, containing the single species Wegea tylophorelloides. The genus was circumscribed in 1997 by André Aptroot and Leif Tibell. The species have a morphology similar to calicioid fungi, but does not form a mazaedium.
Halecania is a genus of fungi in the family Leprocaulaceae. It has 22 species. The genus was circumscribed by Austrian lichenologist Michaela Mayrhofer in 1987, with Halecania alpivaga assigned as the type species. She created Halecania to contain species, formerly placed in Lecania, with the following characteristics: uniformly amyloid apical domes, paraphyses with dark brown apical caps, and halonate ascospores.
Thelenella is a genus of lichen-forming fungi in the family Thelenellaceae. It has 30 species. The genus was circumscribed by Finnish lichenologist William Nylander in 1855, with Thelenella modesta assigned as the type species.
Angiactis is a genus of crustose lichens of uncertain familial placement in the order Arthoniales. It has four species.
Graphina is a genus of script lichens in the family Graphidaceae. It has about 25 species. The genus was circumscribed in 1880 by Swiss lichenologist Johannes Müller Argoviensis. Müller Argoviensis did not indicate a type species for the genus in his original publication; David Hawksworth proposed to designate Graphina anguina as a lectotype in 1981.
Reichlingia is a genus of lichen-forming fungi in the family Arthoniaceae. It has seven species. The genus was originally circumscribed by Paul Diederich and Christoph Scheidegger in 1996, with Reichlingia leopoldii as the type, and at that time, only species. The fungus was at first thought to be a lichenicolous (lichen-dwelling) fungus, but is now considered a lichenised hyphomycete.
Swinscowia is a genus of lichen-forming fungi in the family Strigulaceae. It has 34 species. Swinscowia was proposed in 2020 by lichenologists Shu-Hua Jiang, Robert Lücking, and Emmanuël Sérusiaux to contain non-foliicolous species that were isolated from bark and rocks. Swinscowia jamesii, a species that was originally described in genus Geisleria, and later transferred to Strigula, is the type species of the genus. The genus name honours British lichenologist Thomas Douglas Victor Swinscow, who originally described the type species in 1967.
Nigrovothelium is a genus of lichen-forming fungi in the family Trypetheliaceae. It has three species. The genus was circumscribed in 2016 by lichenologists Robert Lücking, Matthew Nelsen, and André Aptroot, to contain species formerly in the Trypethelium tropicum species group. The type species, Nigrovothelium tropicum, was originally described by Erik Acharius in 1810, as a species of Verrucaria.
