| Miriquidica gyrizans | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Lecanoraceae |
| Genus: | Miriquidica |
| Species: | M. gyrizans |
| Binomial name | |
| Miriquidica gyrizans Fryday (2020) | |
Miriquidica gyrizans is a species of lichen-forming fungus in the family Lecanoraceae. It is found in Alaska and the Yukon, where it grows on granitic boulders.
The lichen was described as a new species in 2020 by British lichenologist Alan Fryday. The type specimen was collected in the Hoonah-Angoon Census Area, of Glacier Bay National Park (Alaska, on a mountain west of Dundas Bay. Here it was found growing on the upper surface of a flat granitic boulder on an alpine ridge at an altitude of 460 m (1,510 ft). DNA analysis of specimens from the type locality confirm a placement in the genus Miriquidica , although there is not yet enough known about other members of the genus to clarify any closer phylogenetic relationships. [1]
The thallus of Miriquidica gyrizans has no definite boundaries, consisting of areoles (small, rounded to polygonal or irregular areas) that are either contiguous or dispersed. These areoles, which measure 0.1–0.2 mm across, are pale brown with a layer of dead fungal cells that imparts a grey tinge. Areoles associate with the cyanobacteria Gloeocapsa , whose reddish cells–measuring 7.5 to 12.5 μm in diameter–group together in groups of two to four. The mycobiont partner of the lichen is chlorococcoid (i.e. green algae with a spherical shape), with dimensions of 5‒9 μm in diameter. [1]
The apothecia of the lichen are black, measuring 0.4‒0.6 mm in diameter. It has a lecideine form, meaning that it is black, with a carbonaceous (blackened) exciple and blackish disc. The disc, when young, has an umbo that becomes more or less completely gyrose (spiralled, with a folded or ridged surface). It is this last feature that is alluded to in the specific epithet gyrizans. Miriquidica gyrizans is the only member of genus Miriquidica to have this characteristic. [1]
The results of standard chemical spot tests are negative with this lichen, but miriquidic acid can be detected using thin-layer chromatography. [1]
Miriquidica gyrizans grows on granitic boulders in alpine and subalpine areas. It typically on the top of the rock, but sometimes on the sides in lower elevations. In addition to the type locality in Glacier Bay National Park, Alaska, the lichen has been recorded from the Klondike Gold Rush National Historical Park and from Kenai Fjords National Park. [1]
Miriquidica is a genus of lichen in the family Lecanoraceae. The genus was circumscribed in 1987 by lichenologists Hannes Hertel and Gerhard Rambold, with Miriquidica complanata assigned as the type species. According to Dictionary of the Fungi, the widespread genus contains 23 species, found predominantly in arctic-alpine regions.
Atrophysma is a fungal genus in the family Pannariaceae. It contains the single species Atrophysma cyanomelanos, a crustose lichen found only in Alaska.
Xenonectriella nephromatis is a species of lichenicolous fungus in the family Nectriaceae. Found in Alaska, it was described as a species new to science in 2020 by Sergio Pérez-Ortega. The type specimen was discovered in the Hoonah–Angoon Census Area in Glacier Bay National Park, where it was growing on a Nephroma lichen. The specific epithet alludes to this host lichen.
Halecania athallina is a species of lichen in the family Leprocaulaceae. Found in Alaska, it was described as new to science in 2020 by British lichenologist Alan Fryday. The type specimen was discovered in Hoonah-Angoon Census Area in Glacier Bay National Park. There it was found growing on argillite rock on an alpine heath with rock outcrops.
Porpidia seakensis is a species of crustose lichen in the family Lecideaceae. It is an endolithic species, meaning it grows inside the rocks, between the grains. Found only in Alaska, it was formally described as a new species in 2020 by British lichenologist Alan Fryday. The type specimen was collected in the Hoonah-Angoon Census Area, in Glacier Bay National Park. Here it was discovered growing on granitic rock in a woodland. The lichen is only known from this area, although it is locally common. Its preferred habitat is siliceous rocks and boulders in wooded areas that are open and well lit. The specific epithet seakensis uses the letters "seak" to refer to a standard abbreviation for southeast Alaska.
Bacidina circumpulla is a species of crustose lichen in the family Ramalinaceae. Found in Alaska and British Columbia, it was described as a new species in 2020 by Stefan Ekman.
Fuscidea muskeg is a species of crustose lichen in the family Fuscideaceae. Found in Alaska, it was described as a new species in 2020 by Tor Tønsberg and Martina Zahradníková. The type species was collected in the Hoonah-Angoon Census Area of Glacier Bay National Park. Here it was found growing on a branch of the tree Pinus contorta in muskeg. The specific epithet muskeg is an Algonquin word for a blanket bog.
Fuscopannaria dillmaniae is a species of lichen in the family Pannariaceae. Found in Alaska, it was described as a new species in 2020 by lichenologist Toby Spribille.
Sclerococcum fissurinae is a species of lichenicolous fungus in the family Dactylosporaceae. Found in Alaska, it was formally described as a new species in 2020 by Sergio Pérez-Ortega. The type specimen was collected in the Hoonah-Angoon Census Area, just outside of Glacier Bay National Park. Here it was found growing on the script lichen species Fissurina insidiosa, which itself was growing on the bark of an alder tree. The specific epithet refers to its host.
Spilonema maritimum is a species of lichen in the family Coccocarpiaceae. Found in Alaska, it was described as a new species in 2020 by lichenologists Toby Spribille and Alan Fryday. The type specimen was collected in Juneau Borough, on the west side of Douglas Island. Here it was found growing on exposed seashore rocks roughly 2 m (6.6 ft) above the high tide line. Its specific epithet maritimum alludes to its close association with maritime rocks.
Lecanora viridipruinosa is a species of crustose lichen in the family Lecanoraceae. Found in Alaska, it was formally described as a new species by lichenologists Måns Svensson and Toby Spribille. The type specimen was collected from the Hoonah-Angoon Census Area in Glacier Bay National Park. Here it was found growing on exposed argillite rock in an alpine heath at an elevation of 920 m (3,020 ft). The specific epithet viridipruinosa refers to the greenish pruina on the discs of the apothecia. The lichen is only known to occur in the type locality.
Sagiolechia phaeospora is a species of crustose lichen in the family Sagiolechiaceae. It is found in the alpine tundra of Alaska.
Lecidea griseomarginata is a species of lichen in the family Lecideaceae. Found in Alaska, it was described as a new species in 2020 by lichenologist Alan Fryday. The type specimen was collected in the Hoonah-Angoon Census Area of Glacier Bay National Park, where it was found growing on a granitic rock along the shoreline of Ptarmigan Creek. It is only known to occur at the type locality. The specific epithet griseomarginata refers to the gray proper margin of the apothecia.
Xenolecia cataractarum is a species of saxicolous and crustose lichen in the family Lecideaceae. It is only known to occur on Campbell Island, New Zealand.
Bacidina flavoleprosa is a species of saxicolous (rock-dwelling), leprose (powdery) lichen in the family Ramalinaceae. It is found in a single locality in the Czech Republic.
Catillaria gilbertii is a rare species of saxicolous (rock-dwelling), crustose lichen in the family Catillariaceae. It is found in the Central Highlands of Scotland.
Placomaronea fuegiana is a species of saxicolous (rock-dwelling), crustose lichen in the family Candelariaceae. Found in South America, it was formally described as a new species in 2009 by Martin Westberg and Patrik Frödén. The type specimen was collected by the second author in Tierra del Fuego, Argentina, where it was found growing on sandstone. The species epithet fuegiana refers to the type locality. It also occurs in Pali-Aike National Park, where it grows in the pits of volcanic rocks.
Placomaronea kaernefeltii is a rare species of saxicolous (rock-dwelling) lichen in the family Candelariaceae. Found in South America, it was formally described as a new species in 2009 by lichenologists Martin Westberg, Patrik Frödén, and Mats Wedin. The type specimen was collected by the second author from Arica (Chile), between Socoroma and Putre, at an altitude of 3,750 m (12,300 ft), where it was found growing along cracks and pits on a siliceous boulder in a dry mountain slope. The lichen is only known to occur at its type locality, although the authors suggest a wider distribution is likely. The species epithet honours Swedish lichenologist Ingvar Kärnefelt.
Elixjohnia bermaguiana is a species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae. It is found in Australia. The lichen is characterised by its varying areoles, which are thin to moderately thick, flat to slightly convex, and range from bright yellow to whitish in colour, sometimes with a greenish-yellow hue. Its apothecia are small, with a distinct orange margin and a raised brownish-orange or yellowish-brown disc.
Filsoniana rexfilsonii is a species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae. Found in Australia, it was formally described as a new species in 2007. The thallus of Filsoniana rexfilsonii comprises brownish-orange squamules each hosting one to four reproductive structures.