Gypsoplacaceae is a family of lichenized fungi in the order Lecanorales. This is a monotypic family, containing the single genus Gypsoplaca, which has a widespread distribution. The family and genus were described as new in 1990 by Norwegian lichenologist Einar Timdal. Gypsoplaca originally contained only the type species, Gypsoplaca macrophylla, but four species were added to the genus in 2018.
Crustospathula is a genus of five species of crustose lichens in the family Malmideaceae. They are characterized by their stalked and sometimes branched cartilaginous soredia and Bacidia-like apothecia.
Phyllopsora is a genus of lichen-forming fungi in the family Ramalinaceae. It was circumscribed by Swiss botanist Johannes Müller Argoviensis in 1894, with Phyllopsora breviuscula assigned as the type species.
Krogia is a genus of corticolous lichens in the family Ramalinaceae. It occurs in tropical humid forests and rainforests. The genus was circumscribed by Norwegian lichenologist Einar Timdal in 2002, with Krogia coralloides assigned as the type species.
Clypeopyrenis is a genus of lichen-forming fungi in the family Pyrenulaceae. The genus was circumscribed in 1991 by Dutch lichenologist André Aptroot, with Clypeopyrenis microsperma assigned as the type species. This lichen, originally described from material collected in Costa Rica, is also found in the Caribbean and South America. Clypeopyrenis porinoides was added to the genus in 2011; it was discovered in Costa Rica, close to the type locality of the type species.
Calvitimela is a lichen genus in the family Tephromelataceae. Members of the family Tephromelataceae are crustose lichens with green photobionts and lecideine or lecanorine apothecia. The species in Calvitimela have lecideine apothecia, are saxicolous and are primarily found in alpine to arctic regions.
Hypocenomyce is a genus of lichen-forming fungi in the family Ophioparmaceae. Species in the genus grow on bark and on wood, especially on burned tree stumps and trunks in coniferous forest. Hypocenomyce lichens are widely distributed in the northern hemisphere.
Hildur Krog was a Norwegian botanist.
Acarospora janae is a species of lichen in the Acarosporaceae family. Described as new to science in 2011, it is known only from New Mexico and Colorado in the United States, where it grows on siliceous rock.
Xanthomendoza rosmarieae is a species of lichen in the family Teloschistaceae. Known only from the type locality in Sussex County, Delaware, it was described as new to science in 2011. It is named after the Swiss lichenologist Rosmarie Honegger.
Echinoplaca pernambucensis is a species of crustose lichen in the family Gomphillaceae. It was described as new to science in 2011. It is found in the Atlantic Forest in Pernambuco, Brazil. This lichen is similar in appearance to Echinoplaca verrucifera, but lacks setae and contains gyrophoric, lecanoric, and subgyrophoric acids.
Acarospora flavisparsa is a species of lichen in the family Acarosporaceae. Found in Portugal and Spain, it was described as new to science in 2011. The lichen grows on acidic rock walls in inland areas.
Lepraria sekikaica is a species of leprose (powdery) lichen in the family Lecanoraceae. Found in Western Australia, it was formally described as a new species by lichenologist John Elix. It was one of 100 new lichen species published in a single article, helping to highlight the extent of undiscovered global biodiversity. The type specimen was collected by the author in the Boyagin Rock Nature Reserve. It is known from several locations in Western Australia, where it grows on the ground under sheltered rock ledges. The lichen products made by Lepraria sekikaica include atranorin, homosekikaic acid, 4'-O-demethylsekikaic acid, and fragilin as minor products, and sekikaic acid as a major metabolite. The specific epithet refers to the latter compound; Lepraria sekikaica is the first known in genus Lepraria to contain this substance.
Bryobilimbia is a genus of lichen-forming fungi belonging to the family Lecideaceae. It was circumscribed in 2014 by Alan Fryday, Christian Printzen, and Stefan Ekman. The type species is Bryolimbia hypnorum.
Bibbya is a genus of fruticose lichens in the family Ramalinaceae.
Clypeopyrenis porinoides is a species of corticolous (bark-dwelling) lichen in the family Pyrenulaceae. Found in Costa Rica, where it grows primarily on tree trunks and the understory of primary forests, it was described as new to science in 2011. Closely resembling some Porina species, this lichen is characterised by its light greyish-green surface and distinctive perithecia that set it apart from its close relative, Clypeopyrenis microsperma.
Lobariella sipmanii is a species of foliose lichen in the family Peltigeraceae. It is found in high-altitude páramo in Cundinamarca, Colombia.
Verrucaria rhizicola is a rare species of corticolous (bark-dwelling), aquatic, crustose lichen in the family Verrucariaceae. Found in France, it was formally described as a new species in 2011 by lichenologists André Aptroot and Holger Thüs. The type specimen was collected by the first author from the Forêt de Boulogne (Pas-de-Calais). There, the lichen was growing on the roots of common alder. It is only known from the type collection. The species epithet rhizicola refers to its growth on roots. The roots holding the lichen are located along a stream in a temperate forest, and as such, the lichen is regularly immersed in fresh water. Verrucaria rhizicola is one of about 20 corticolous species in genus Verrucaria. In addition to its uncommon habitat, other unique characteristics of this species are the prominent, minute, shiny ascomata that have a distinctive dimidiate involucrellum, and the asymmetrically kidney-shaped ascospores.
Crustospathula amazonica is a species of corticolous (bark-dwelling), crustose lichen in the family Ramalinaceae. Found in South America, it was formally described as a new species in 2014 by lichenologists André Aptroot, Marcela Cáceres, and Einar Timdal. The type specimen was collected by the first two authors from the Parque Natural Municipal de Porto Velho, where it was found growing on the smooth bark of a tree in a primary rainforest. It also occurs in French Guiana and Peru, and tends to grow in association with lichens of the genus Porina and with thelotremoid members of the family Graphidaceae. The lichen has a film-like, green thallus consisting of fine, aggregated granules; no prothallus is present. Soredia are whitish, roughly spherical, and occur at the tips of cartilaginous stalks up to 3 mm tall.
Krogia macrophylla is a species of corticolous (bark-dwelling) lichen in the family Ramalinaceae. Found in New Caledonia, it was formally described as a new species in 2018. It is distinguished from other Krogia species by its relatively larger squamules and the production of a chemical substance similar to boninic acid. The species grows predominantly on tree trunks in moist or wet tropical forests.
