Peltigera retifoveata

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Peltigera retifoveata
Peltigera retifoveata 2 3 (4037848900).jpg
in Wells Gray Provincial Park, British Columbia, Canada; scale bar= 2 centimetres
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Peltigerales
Family: Peltigeraceae
Genus: Peltigera
Species:
P. retifoveata
Binomial name
Peltigera retifoveata
Vitik. (1985)

Peltigera retifoveata is a species of foliose lichen in the family Peltigeraceae. It is found in Scandinavia, western Eurasia and western North America, where it grows on the ground and amongst mosses.

Contents

Taxonomy

Because of its tomentose thallus surface texure, Peltigera retifoveata is a member of the species complex centred around Peltigera canina . It was formally described as a new species in 1985 by the Finnish lichenologist Orvo Vitikainen. The type specimen was collected by Vitikainen from Juuma (Kuusamo, Finland) at an elevation of 180 m (590 ft), where it was found growing on the ground among mosses. [1] One vernacular name used in North America is "sponge pelt". [2]

Description

The thallus of P. retifoveata grows up to about 20 cm (8 in) in diameter, comprising individual lobes that are about 10 cm (4 in) long and 1–2 cm (0.4–0.8 in) wide. The thallus surface is thickly tomentose near the margins, but becomes smoother ( glabrous near the centre. The thallus underside features thick, pale, tomentose veins, with white and pit-like interstices. The rhizines (root-like attachment structures) are dark brown to black and up to about 7 long; they are typically either unbranched or grouped in bundles. The apothecia (fruiting bodies) are 5–7 mm in diameter with margins turned upward. [1]

Habitat and distribution

Peltigera retifoveata has a circumpolar distribution. Although originally described from Finnish collections, it is uncommon in Europe, having been recorded from only a few locations in Scandinavia. There are also records from the Russian Far East and Siberia. The lichen is more common in northern North America, with a range extending from subarctic regions (Alaska, Yukon, and the Northwest Territories, and including several western Canadian provinces: British Columbia, Alberta, and Manitoba. [1] The southern extent of its North American range reaches Washington. [3] [4] It grows on the ground, and amongst or on top of mosses in boreal forests; in Alaska, it has been found growing in moist tundra. Associated mosses include Pleurozium schreberi , Hylocomium sklendens , Ptilium crista-castrensis , and species of Dicranum . Other lichen species that are often found with Peltigera retifoveata are its relatives P. aphthosa , P. leucophlebia , and P. canina . [1]

Related Research Articles

<i>Peltigera</i> Genus of lichenised fungi in the family Peltigeraceae

Peltigera is a genus of approximately 100 species of foliose lichens in the family Peltigeraceae. Commonly known as the dog or pelt lichens, species of Peltigera are often terricolous, but can also occur on moss, trees, rocks, and many other substrates in many parts of the world.

Peltigera vainioi is a species of lichen in the family Peltigeraceae. It is found in high-elevation locations in South America. It is a somewhat unusual species in its genus, characterized by a single holdfast that attaches to its substrate, and pores in its cortex.

<i>Peltigera canina</i> Species of lichen in the family Peltigeraceae

Peltigera canina, commonly known as the dog lichen, is a widely distributed species of foliose lichen in the family Peltigeraceae. It was originally described by Carl Linnaeus in his 1753 work Species Plantarum. German botanist Carl Ludwig Willdenow transferred it to the genus Peltigera in 1787. This species is currently undergoing research as it is likely multiple species under one united name.

<i>Peltigera lepidophora</i> Species of lichen in the family Peltigeraceae

Peltigera lepidophora, commonly known as the scaly pelt, is a species of foliose lichen in the family Peltigeraceae. It was first described by Finnish lichenologist Edvard August Vainio in 1878 as a variety of Peltigera canina. German botanist Friedrich August Georg Bitter promoted it to species status in 1904.

<i>Peltigera praetextata</i> Species of lichen

Peltigera praetextata, or the scaly dog pelt lichen, is a foliose lichen native to North America, Europe, and Asia. It is defined by small belly-button-like growths called phyllidia on its edges and centre.

<i>Parmelia fraudans</i> Species of lichen

Parmelia fraudans is a species of foliose lichen in the family Parmeliaceae. It is found in Europe and North America, where it grows on rocks.

Peltigera papuana is a lichen-forming fungus in the family Peltigeraceae. It was described in 2009 from Madang Province of Papua New Guinea, which inspired its specific epithet. Genetic analysis of both the mycobiont and the photobiont, which is a Nostoc cyanobacterium, suggests that the evolutionary origin of Pelitgera papuana is from an ancient dispersal event from South America, although this remains inconclusive.

<i>Peltigera rufescens</i> Species of lichen

Peltigera rufescens, the field dog lichen or field pelt, is a species of terricolous (ground-dwelling), foliose lichen in the family Peltigeraceae. The common and widespread species has a cosmopolitan distribution. The lichen has a surface that is densely covered with a soft, velvety layer, extending from the edges to the centre. The edges of this lichen typically curl upwards, revealing lobes that can be up to 10 millimetres wide. Beneath, it possesses a network of rhizines, which are root-like structures that merge together into a thick mat, anchoring the lichen to its substrate.

Peltigera shennongjiana is a species of terricolous (ground-dwelling), foliose lichen in the family Peltigeraceae. Found in Central China, it was formally described as a new species in 2019 by Liu-Fu Han and Shou-Yu Guo. The type specimen was collected from Laojunshan Mountain in the Shennongjia Forestry District at an elevation of 900 m (3,000 ft); here it was found growing on mosses over rocks and soil. The species epithet refers to the type locality.

Peltigera wulingensis is a species of terricolous (ground-dwelling), foliose lichen in the family Peltigeraceae. Originally described from specimens found in northern China, it has since been recorded in Canada, Norway, and Russia.

<i>Solorina crocea</i> Species of lichen

Solorina crocea, commonly known as the orange chocolate chip lichen, is a species of terricolous (ground-dwelling) and foliose (leafy) lichen in the family Peltigeraceae. The lichen, which was first formally described by Carl Linnaeus in 1753, has an arctic–alpine and circumpolar distribution and occurs in Asia, Europe, North America, and New Zealand. It generally grows on the bare ground in sandy soils, often in moist soil near snow patches or seepage areas. Although several forms and varieties of the lichen have been proposed in its history, these are not considered to have any independent taxonomic significance.

Peltigera fimbriata is a species of foliose lichen in the family Peltigeraceae. Found in Papua New Guinea, it was formally described as a new species in 2009 by lichenologists Orvo Vitikainen, Emmanuël Sérusiaux, Bernard Goffinet, and Jolanta Miądlikowska. The type specimen was collected between Mt. Sarawaket Southern Range and Iloko village The species epithet fimbriata refers to the characteristic long hairs that occur on the upper thallus surface.

Peltigera granulosa is a species of terricolous (ground-dwelling), foliose lichen in the family Peltigeraceae. Found in Papua New Guinea, it was formally described as a new species in 2009 by Emmanuël Sérusiaux, Bernard Goffinet, Jolanta Miądlikowska, and Orvo Vitikainen. The type specimen was collected from open grassland between Gumum and Sape villages, where it was found growing on sand. The species epithet granulosa refers to its characteristic granulose margin.

Peltigera koponenii is a species of foliose lichen in the family Peltigeraceae. Found in Papua New Guinea, it was formally described as a new species in 2009 by Emmanuël Sérusiaux, Bernard Goffinet, Jolanta Miądlikowska, and Orvo Vitikainen. The type specimen was collected near Lake Wanba at an altitude of 2,400–2,500 m (7,900–8,200 ft), where it was found growing on a tree trunk in an open montane forest of Nothofagus and Pandanus. The species epithet honours Finnish bryologist Timo Koponen, "who made large and well processed collections of Peltigera in Papua New Guinea".

Peltigera weberi is a rare species of foliose lichen in the family Peltigeraceae. It is found in Papua New Guinea, where it grows on road banks and on earth and rock debris.

<i>Peltigera hydrophila</i> Species of lichen

Peltigera hydrophila is a species of foliose lichen in the family Peltigeraceae. First described in 2020, it distinguishes itself through a distinct, hairless thallus that turns deep blue-violet when it becomes wet. Found primarily in the Magallanes Region of Chile, this small leafy lichen clings closely to mosses and other substrates. Distinctive features include the always-present reddish-brown to dark brown apothecia and the Peltigera-type ascospores that contain three internal partitions, or septa. Despite sharing a habitat with similar species like P. aubertii and P. frigida, P. hydrophila sets itself apart through its unique thallus surface texture and colour. This semi-aquatic lichen primarily thrives in humid forests, shrubby and herbaceous vegetation in southern Chile, particularly near waterfalls, streams, and other wet environments.

<i>Peltigera cinnamomea</i> Species of lichen

Peltigera cinnamomea, the dog pelt or cinnamon-pelt lichen, is a species of muscicolous (moss-dwelling), foliose lichen in the family Peltigeraceae. The species was formally described by the Canadian lichenologist Trevor Goward in 1995. The lichen is found in forested regions of northwestern North America, particularly in the unique montane and subalpine forest communities of the northern Rocky Mountains. Notably, Peltigera cinnamomea thrives under prolonged snow cover, surviving well into the spring, which distinguishes it from many of the other Peltigera species that inhabit similar North American forest ecosystems.

<i>Peltigera castanea</i> Species of lichen

Peltigera castanea is a species of terricolous and muscicolous, foliose lichen in the family Peltigeraceae. Described as a new species in 2003, it is part of the taxonomically challenging species complex centred around Peltigera didactyla. Recognised based on phylogenetic studies that highlighted its unique genetic markers, P. castanea is distinguished by its dark, chestnut-coloured upper surface, which inspired its vernacular name, chestnut pelt lichen. Its known distribution includes North America, Asia, Europe (Estonia), Greenland, and the Antarctic. The conservation status of Peltigera castanea varies regionally, from being critically imperiled in British Columbia and Yukon to critically endangered in Estonia due to significant habitat degradation and restricted population size.

<i>Peltigera alkalicola</i> Species of lichen found in high-altitude habitats

Peltigera alkalicola is a rare species of terricolous (ground-dwelling) foliose lichen in the family Peltigeraceae. First described in 2022 from specimens collected in the Kilimanjaro National Park in Tanzania, it is characterised by its unique ecological preferences. Analysis of DNA samples indicate that the lichen may also occur in Alaska, USA, and Ningxia, China, suggesting a wider distribution in cold, montane ecosystems.

Peltigera isidiophora is a species of foliose lichen in the family Peltigeraceae. It is characterised by its laminal clustered isidia that grow in pits, a shiny and scarred grey upper surface, and its thin, sparse, and simple rhizines. It is known only from its original collection location in Hebei, China, where it grows on moss and on soil in montane forest.

References

  1. 1 2 3 4 Vitikainen, Orvo (1985). "Three new species of Peltigera (lichenized Ascomycetes)". Annales Botanici Fennici. 22 (4): 291–298. JSTOR   23725549.
  2. Goward, Trevor; McCune, Bruce; Meidinger, Del (1994). The Lichens of British Columbia: Illustrated Keys. Part 1 — Foliose and Squamulose Species. Victoria, B.C.: Ministry of Forests Research Program. p. 105. ISBN   0-7726-2194-2. OCLC   31651418.
  3. Goffinet, Bernard (1992). "The North American distribution of Peltigera retifoveata Vitik". Evansia. 9 (2): 49–51. doi: 10.5962/p.345962 .
  4. McCune, Bruce; Geiser, Linda (2023). Macrolichens of the Pacific Northwest (3 ed.). Corvallis: Oregon State University Press. p. 291. ISBN   978-0-87071-251-7.