Psora is a genus of lichen-forming fungi in the family Psoraceae. Members of the genus are commonly called fishscale lichens. Lichens in the genus Psora generally have a squamulose thallus and anthraquinones in the hymenium. Photobiont partners of Psora lichens include members of the green algal genera Asterochloris, Chloroidium, Myrmecia, and Trebouxia.
Candelariella is a genus of bright yellow, ocher, or greenish yellow crustose or squamulose lichens in the family Candelariaceae. Members of the genus are commonly called eggyolk lichens, goldspeck lichens, or yolk lichens. The genus was circumscribed in 1894 by Swiss lichenologist Johannes Müller Argoviensis, with Candelariella vitellina assigned as the type species.
Rhizocarpaceae is a family of crustose, lecideoid, lichen-forming fungi and together with the family Sporastatiaceae it constitutes the order Rhizocarpales in the Ascomycota, class Lecanoromycetes.
Rhizocarpon is a genus of crustose, saxicolous, lecideoid lichens in the family Rhizocarpaceae. The genus is common in arctic-alpine environments, but also occurs throughout temperate, subtropical, and even tropical regions. They are commonly known as map lichens because of the prothallus forming border-like bands between colonies in some species, like the common map lichen.
Dictyonema is a genus of mainly tropical basidiolichens in the family Hygrophoraceae.
Rhizocarpon diploschistinum is an uncommon species of lichenicolous (lichen-dwelling), crustose lichen in the family Rhizocarpaceae. It parasitises the lichen Diploschistes muscorum. It is distinguished from similar species by its distinctive yellow thallus and presence of rhizocarpic acid. This lichen has been found in shrub steppe and grasslands in central Washington and north-central Oregon, USA.
Rhizocarpon petraeum is a species of lichen in the family Rhizocarpaceae. It contains stictic acid.
The Rhizocarpales are an order of lichen-forming fungi in the subclass Lecanoromycetidae of the class Lecanoromycetes. It has two families, Rhizocarpaceae and Sporastatiaceae, which contain mostly crustose lichens.
Sporastatia is a genus of crustose lichens in the family Sporastatiaceae. It has four species. Sporastatia lichens are long-lived species that grow on siliceous or weakly calcareous rocks in arctic and alpine locales.
Lendemeriella is a genus of crustose lichens in the subfamily Caloplacoideae of the family Teloschistaceae. It has ten species. The genus was circumscribed in 2020 by Sergey Kondratyuk, with Lendemeriella reptans assigned as the type species. The genus name honours the American lichenologist James Lendemer, who co-authored the type species in 2012.
Psora taurensis is a species of terricolous (ground-dwelling), squamulose lichen in the family Lecanoraceae. It is found in the Taurus Mountains of Turkey.
Rhizocarpon furax is a species of lichen in the family Rhizocarpaceae. It is found in Europe, where it has a scattered distribution.
Shackletonia is a genus of lichen-forming fungi in the family Teloschistaceae. The species in the Shackletonia genus are lichenicolous and muscicolous, and known from Antarctica and southern Patagonia.
Lecidea tessellata is a species of saxicolous (rock-dwelling), crustose lichen in the family Lecideaceae. It was formally described as a species in 1819 by German botanist Heinrich Flörke. In northern North America, it is common and widely distributed, growing on non-calcareous rocks. It also occurs in Afghanistan, China, Nepal, Europe, and Russian Asia. In India, it has been recorded only from the alpine Western Himalayas at an altitude of 3,450 m (11,320 ft). Its southern distribution extends to James Ross Island, where it is locally common.
Rhizocarpon timdalii is a species of saxicolous (rock-dwelling), crustose lichen in the family Rhizocarpaceae. Identified and described as a new species in 2002, this lichen is characterized by its brown thallus composed of convex areoles. It occurs in Europe and North America.
Rhizocarpon pusillum is a species of saxicolous (rock-dwelling), crustose lichen in the family Rhizocarpaceae. It is a lichenicolous lichen, meaning it is parasitic on other lichens. It was formally described as a new species in 1956 by the Swedish lichenologist Hans Runemark.
Rhizocarpon austroamphibium is a species of saxicolous (rock-dwelling), crustose lichen in the family Rhizocarpaceae. It is found in alpine environments in southwestern Tasmania, Australia.
Rhizocarpon vigilans is a species of crustose lichen in the family Rhizocarpaceae. It is native to the southern Australian Capital Territory, particularly found in the Namadgi National Park on the summit of Sentry Box Mountain.
Rhizocarpon alpicola is a species of saxicolous (rock-dwelling), crustose lichen in the family Rhizocarpaceae. A member of the Rhizocarpon geographicum species complex, R. alpicola can usually be distinguished from related species by its large and smooth areoles.
Rhizocarpon badioatrum is a widely distributed species of saxicolous (rock-dwelling), crustose lichen in the family Rhizocarpaceae.
