Peltigera papuana | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Ascomycota |
Class: | Lecanoromycetes |
Order: | Peltigerales |
Family: | Peltigeraceae |
Genus: | Peltigera |
Species: | P. papuana |
Binomial name | |
Peltigera papuana | |
Peltigera papuana is a lichen-forming fungus in the family Peltigeraceae. [1] It was described in 2009 from Madang Province of Papua New Guinea, which inspired its specific epithet. [2] 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. [3]
Peltigera papuana is part of the Peltigera rufescens group and it is most related to Peltigera granulosa , Peltigera laciniata , [2] and Peltigera wulingensis . [4] Genetically, the monophyly of Peltigera papuana is not well supported. It has high intraspecific variation in its internal transcribed spacer-region, which is commonly used in phylogeny. This variation may indicate the presence of multiple unrecognized species within P. papuana. [2]
Peltigera papuana forms rounded rosettes reaching 10–12 cm (3.9–4.7 in) in diameter under ideal conditions. Its lobes are overlapping, generally narrow at 0.5–0.7 cm wide, featuring raised, crenate (scalloped) edges, which occasionally display a crisped appearance. These margins swell and turn as lobes initiate apothecium (fruiting body) development, often adorned with tiny, whitish tufts of hair. The upper surface presents a range of colours from orange brown and beige brown to grey brown, and infrequently, bluish grey. This surface may be smooth or show a light to markedly rough texture, interspersed with tiny translucent hairs concentrated particularly around the lobe edges. Near the extremities of younger lobes, a whitish- pruinose coating gives a frosted look; some thalli show longitudinal cracks. The lateral margins tend to become incised-lacerate, forming flat, branched lobules that are typically fragile and detach easily. In mature specimens, these lobules can evolve into distinct, brittle digitate phyllidia up to 0.2 cm long, occasionally featuring tomentose or pruinose tips that are noticeably enlarged. [2]
The thallus underside is whitish, with interwoven medullary hyphae and a bluish hue from the photobiont , especially visible under a dissecting microscope. It has a well-defined network of slightly raised veins measuring 0.2–0.3 mm across, coloured pale orange to brown near the margins and darker brown to black elsewhere, separated by whitish, elliptical gaps primarily around the edges. Rhizines are plentiful, long, dark brown to black, and vary from thread-like to brush-like, with occasional branching and rare confluences. [2]
Apothecia are frequently observed, numerous, and typically develop horizontally from an early stage on swollen and sometimes tomentose lobes. The discs are dark reddish brown, initially concave and partially obscured by vegetative remnants, giving them a crenate appearance, but they flatten or become irregularly rounded and ellipsoid as they mature, usually measuring smaller than 6 by 4 mm. The margins of these discs are typically incised-crenulate, and the lobes bearing them are notably tomentose. Ascospores are fusiform , relatively narrow with vaguely pointed ends, and 3 to 5 internal partitions (septa), typically measuring 38–51 by 4–5 μm. Pycnidia (asexual reproductive structures) are extremely rare, manifesting as small, swollen, brownish spots on the margins of lateral lobes; conidia are absent. [2]
Thin layer chromatography did not reveal any secondary metabolites in Peltigera papuana that could serve as characters to distinguish between species. However, the absence of such compounds could serve as an accessory identifier of the species. [2]
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.
William Alfred Weber was an American botanist and lichenologist. He was Professor Emeritus at the University of Colorado at Boulder and former curator of the University of Colorado Museum Herbarium.
Gallaicolichen is a fungal genus in the division Ascomycota. The relationship of this taxon to other taxa within the division is unknown, and it has not yet been placed with certainty into any class, order, or family. This is a monotypic genus, containing the single species Gallaicolichen pacificus, a foliicolous (leaf-dwelling) lichen.
Orvo Vitikainen is a Finnish lichenologist. He entered the University of Helsinki in 1961, from where he obtained a Candidate of Philosophy degree in 1966, and a Licentiate of Philosophy in 1971. He later earned a Ph.D. from this institution in 1994, under the supervision of Teuvo Ahti. Between the years 1961 and 1981 he was a junior curator of cryptogams at the University of Helsinki Botanical Garden, and then from 1983 to 2004 he was the head of the lichen herbarium. Here he managed the internationally valuable collections of the early lichenologists Erik Acharius and William Nylander. He has collected thousands of specimens for the herbarium from various locations in Finland, but also internationally, including Sweden, Norway, Denmark, Russian Karelia, Scotland, Austria, Italy, Hungary, Croatia, Montenegro, Tanzania, Kenya, British Columbia, and Brazil. In 1992–1994, he was a scientist of the Finnish Academy in the Ahti research group.
Emmanuël Sérusiaux is a Belgian lichenologist. His career, spanning more than four decades, has combined both lichenology research and political aspects of nature conservation. He spent several periods working as a researcher at the National Fund for Scientific Research and the University of Liège, the latter in which he accepted a faculty position as professor and head of the Plant Taxonomy and Conservation Biology unit. Sérusiaux also served for three non-consecutive appointments as Deputy Chief of Staff in the Government of Wallonia. He retired from both his academic and political positions in 2019.
Peltigera serusiauxii is a species of foliose lichen in the family Peltigeraceae. It is found in Papua New Guinea and Sabah, northern Borneo (Malaysia). It was described as a new species in 2020 by Nicolas Magain, Jolanta Miadlikowska, Bernard Goffinet, and Antoine Simon. The type was collected in Mount Gahavisuka Provincial Park, where it was found growing in a mostly undisturbed mossy mountain forest dominated by chinquapin trees. The specific epithet honours Belgian lichenologist Emmanuël Sérusiaux, "who substantially contributed to our understanding of the world-wide diversity of Peltigera, especially in Papua New Guinea where he collected the type material among several other specimens of this new species".
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.
Sticta atroandensis is a species of foliose lichen in the family Peltigeraceae. It is found in the Colombian Andes.
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 montis-wilhelmii is a rare species of corticolous (bark-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 Pindaunde valley on Mount Wilhelm at an altitude of 3,600 m (11,800 ft). The species epithet refers to the type locality.
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.
Peltigera seneca is a rare species of foliose lichen in the family Peltigeraceae. Native to eastern North America, it was first identified in Pennsylvania's Tioga State Forest, where it grows on humus and mossy rocks. It is similar to the Peltigera polydactylon, but with distinct genetic, geographic, and chemical characteristics. P. seneca is characterized by its small thalli with narrow lobes and a pale zone on margins of its lower thallus surface.
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.
Lobariella reticulata is a species of foliose lichen in the family Peltigeraceae. It is found in Colombia.
Fellhanera gyrophorica is a corticolous species in the family Pilocarpaceae. Previously noted in several publications as an unidentified Fellhanera species, it was formally named and described due to its unique characteristics and lack of ascomata.
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.
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.