Monotypic Lecanorales genera

Cornicularia is a genus of lichenised ascomycetes in the large family Parmeliaceae. It is a monotypic genus, with a single currently accepted species, the saxicolous lichen Cornicularia normoerica, and is sometimes referred to as the bootstrap lichen. The lichen forms small, dark tufts rarely exceeding 2 cm in height that are anchored so firmly to rocks, with narrow, stiff branches topped by shiny black reproductive discs. It grows on high-elevation, sun-exposed rocks and boulders, where its compact, shrub-like appearance and glossy black-brown surface make it distinctive among mountain l

Cetradonia is a lichen genus in the family Cladoniaceae. A monotypic genus, Cetradonia contains the single species Cetradonia linearis (formerly known as Cladonia linearis and as Gymnoderma lineare). The genus was circumscribed in 2002 by Jiang-Chun Wei and Teuvo Ahti. The genus was once placed in the family Cetradoniaceae (created in 2002) until that family was subsumed into the Cladoniaceae in 2006.

Ahtiana is a fungal genus in the family Parmeliaceae. A monotypic genus, it contains the single species Ahtiana sphaerosporella, the mountain candlewax lichen, found in western North America. The species was originally classified as Parmelia sphaerosporella by Johannes Müller Argoviensis in 1891, before Trevor Goward established the new genus Ahtiana in 1985, naming it after Finnish lichenologist Teuvo Ahti. This foliose lichen is characterised by its pale yellowish-green thallus, spherical spores, laminal apothecia (fruiting bodies), and the presence of usnic and caperatic acids. It primarily

Esslingeriana is a fungal genus in the family Parmeliaceae. The genus is monotypic, containing the single foliose lichen species Esslingeriana idahoensis, commonly known as the tinted rag lichen. It is found in northwestern North America.

Calathaspis is a fungal genus in the family Cladoniaceae. A monotypic genus, Calathaspis contains the single species Calathaspis devexa, which is found in Papua New Guinea in middle- and high-elevation forests at altitudes ranging from .

Coronoplectrum is a single-species genus of unknown familial placement in the order Lecanorales. The only species in the monotypic genus is Coronoplectrum namibicum, a fruticose (bushy), saxicolous (rock-dwelling) lichen found in Namibia. The genus was circumscribed by Franklin Brusse in 1987.

Squamella is a fungal genus in the family Cladoniaceae. The genus is monotypic, containing the single species Squamella spumosa, a squamulose lichen found in Australia. The genus was established in 2001 for a lichen collected in the McIlwraith Range of far-northern Queensland, distinguished by its flattened, leaf-like scales that develop foam-like masses of tiny at their tips. It lacks the stalked structures typical of related genera and grows on bark in seasonal monsoon forests. Its precise evolutionary relationships remain uncertain due to the absence of DNA sequence data.

Psoromella is a fungal genus of uncertain familial classification in the order Lecanorales. The genus is monotypic, containing the single species Psoromella pampana, a soil-dwelling lichen found in Argentina.

Barubria is a fungal genus in the family Ectolechiaceae. It contain a single species Barubria fuscorubra, a leaf-dwelling lichen. The genus was established in 1986 by the Czech lichenologist Antonín Vězda, based on material collected from Guinea (West Africa). It is characterised by dark blue, sharply pointed (asexual spore-producing structures) and by asci (spore sacs) whose tip stains blue in iodine. The species forms a thin, smooth crust on leaf surfaces and produces brown fruiting bodies (apothecia) that narrow where they meet the crust.

Omphalora is a fungal genus in the family Parmeliaceae. The genus is monotypic, containing the single species Omphalora arizonica, a foliose lichen found in North America.