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Xanthocarpia Erichansenii
''Xanthocarpia erichansenii'' is a species of terricolous (ground-dwelling), crustose lichen in the family Teloschistaceae. It is found in southwest Greenland, where it grows on loess (a type of soil) among mosses. Taxonomy The lichen was first formally described in 2009 by the lichenologists Sergey Kondratyuk, Arne Thell, Ingvar Kärnefelt, and John Elix; it was initially classified in the genus ''Caloplaca''. The species epithet honours the Danish lichenologist Eric Steen Hansen, who, according to the authors, "has made enormous contributions to our knowledge of lichens in Greenland". Patrik Frödén and colleagues transferred the taxon to the genus ''Xanthocarpia'' in 2013. Description ''Xanthocarpia erichansenii'' features a thallus that typically measures between 3 and 15 mm in width. The thallus is generally composed of tiny, scattered that are convex in shape and range from yellow to a dull yellow-orange colour. These areoles are mostly rounded, varying in size ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ingvar Kärnefelt
Jan Eric Ingvar Kärnefelt (born 1944) is a Swedish lichenologist. Early life and education Kärnefelt was born in Gothenburg, Sweden in 1944. His initial goal in his higher-level studies at University of Cologne in 1966–1967 was to become a dentist. He changed courses in 1968, turning instead to biology at the University of Gothenburg in 1968. Gunnar Degelius, his first teacher during undergraduate studies in botany in 1968, inspired him and others. After Degelius' retirement in 1969, Ingvar continued his studies at Lund University, where Hans Runemark held a position in systematic botany. In 1971 he met Ove Almborn, who became his supervisor. In 1979, he defended his thesis titled "The brown fruticose species of ''Cetraria''". The thesis was later awarded a prize for the best doctoral dissertation in botany at Lund University during a 5-year period by the Royal Physiographic Society in Lund. Career Kärnefelt became associate professor at the Department of Systematic Bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soredia
Soredia are common reproductive structures of lichens. Lichens reproduce asexually by employing simple fragmentation and production of soredia and isidia. Soredia are powdery propagules composed of fungal hyphae wrapped around cyanobacteria or green algae. These can be either scattered diffusely across the surface of the lichen's thallus Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms wer ..., or produced in localized structures called soralia. Fungal hyphae make up the basic body structure of lichen. The soredia are released through openings in the upper cortex of the lichen structure. After their release, the soredia disperse to establish the lichen in a new location. References Fungal morphology and anatomy Lichenology {{lichen-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teloschistales
The Teloschistales are an order of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. According to one 2008 estimate, the order contains 5 families, 66 genera, and 1954 species. The predominant photobiont partners for the Teloschistales are green algae from the genera ''Trebouxia'' and '' Asterochloris''. Families *Brigantiaeaceae *Letrouitiaceae *Megalosporaceae *Teloschistaceae The Teloschistaceae are a large family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The family, estimated to contain over 1800 species, was extensively revised in 2013, including the creati ... References Lichen orders Lecanoromycetes orders Taxa described in 1986 Taxa named by David Leslie Hawksworth {{Teloschistales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Fungorum
''Index Fungorum'' is an international project to index all formal names (scientific names) in the fungus kingdom. the project is based at the Royal Botanic Gardens, Kew, one of three partners along with Landcare Research and the Institute of Microbiology, Chinese Academy of Sciences. It is somewhat comparable to the International Plant Names Index (IPNI), in which the Royal Botanic Gardens is also involved. A difference is that where IPNI does not indicate correct names, the ''Index Fungorum'' does indicate the status of a name. In the returns from the search page a currently correct name is indicated in green, while others are in blue (a few, aberrant usages of names are indicated in red). All names are linked to pages giving the correct name, with lists of synonyms. ''Index Fungorum'' is one of three nomenclatural repositories recognized by the Nomenclature Committee for Fungi; the others are ''MycoBank'' and ''Fungal Names''. Current names in ''Index Fungorum'' (''Specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catapyrenium
''Catapyrenium'' is a genus of lichens in the family Verrucariaceae. The genus was circumscribed by German botanist Julius von Flotow Julius von Flotow; full name- Julius Christian Gottlieb Ulrich Gustav Georg Adam Ernst Friedrich von Flotow (9 March 1788 – 15 August 1856) was a German military officer and a botanist specialized in lichenology and bryology. Von Flotow was bor ... in 1850. Species *'' Catapyrenium adami-borosi'' *'' Catapyrenium boccanum'' *'' Catapyrenium chilense'' *'' Catapyrenium cinereum'' *'' Catapyrenium dactylinum'' *'' Catapyrenium daedaleum'' *'' Catapyrenium fuscatum'' *'' Catapyrenium lachneum'' *'' Catapyrenium lambii'' *'' Catapyrenium michelii'' *'' Catapyrenium oxneri'' *'' Catapyrenium pamiricum'' *'' Catapyrenium pilosellum'' *'' Catapyrenium psoromoides'' *'' Catapyrenium rufescens'' *'' Catapyrenium simulans'' *'' Catapyrenium squamellum'' *'' Catapyrenium squamulosum'' References Verrucariales Eurotiomycetes gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diploschistes Muscorum
''Diploschistes muscorum'' is a species of fungus belonging to the family Graphidaceae. It has cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... References {{Taxonbar, from=Q10589568 Graphidaceae Taxa named by Giovanni Antonio Scopoli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fulgensia Bracteata
''Fulgensia'' is a genus of lichenized fungi in the family Teloschistaceae. Gallery Image:Fulgensia fulgens Psora decipiens 141007.jpg, ''Fulgensia fulgens'', above (yellow) ''Psora decipiens'', below (red), Tauberland, Germany Image:Fulgensia fulgens 140506a.jpg, ''Fulgensia fulgens ''Fulgensia'' is a genus of lichenized fungi in the family Teloschistaceae. Gallery Image:Fulgensia fulgens Psora decipiens 141007.jpg, ''Fulgensia fulgens'', above (yellow) ''Psora decipiens'', below (red), Tauberland, Germany Image:Fulgensia ...'', Tauberland, Germany References External linksIndex Fungorum Teloschistales Lichen genera Teloschistales genera Taxa named by Abramo Bartolommeo Massalongo Taxa named by Giuseppe De Notaris {{Teloschistales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physconia Muscigena
''Physconia'' is a genus of lichen-forming fungi in the family Physciaceae. It has about 25 species. The genus was circumscribed by Czech lichenologist Josef Poelt in 1965, with ''Physconia pulverulenta'' assigned as the type species. Species *''Physconia californica'' *''Physconia chinensis'' *''Physconia distorta'' *''Physconia enteroxantha'' *''Physconia fallax'' *''Physconia grisea'' *'' Physconia jacutica'' *''Physconia labrata'' *'' Physconia muscigena'' *''Physconia perisidiosa'' *''Physconia pulverulenta'' *'' Physconia rossica'' *''Physconia sikkimensis'' *''Physconia thorstenii ''Physconia'' is a genus of lichen-forming fungi in the family Physciaceae. It has about 25 species. The genus was circumscribed by Czech lichenologist Josef Poelt in 1965, with ''Physconia pulverulenta'' assigned as the type species. Species * ...'' References Caliciales Lichen genera Caliciales genera Taxa described in 1965 Taxa named by Josef Poelt {{Calicial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peltigera Rufescens
''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 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 . Taxonomy The lichen was first formally described as a variety of ''Lichen caninus'' in 1770 by Friedrich Wilhelm Weiss. At that time, lichens were classified in the eponymous genus ''Lichen'', based on the influence of Carl Linnaeus and his 1753 work ''Species Plantarum''. Alexander von Humboldt transferred the taxon to the genus ''Peltigera'' and promoted it to the status of species in 1793. Vernacular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavocetraria Nivalis
''Flavocetraria'' is a genus of lichenized ascomycete fungi in the family Parmeliaceae. The genus contains two species found in arctic-alpine and boreal Boreal may refer to: Climatology and geography *Boreal (age), the first climatic phase of the Blytt-Sernander sequence of northern Europe, during the Holocene epoch *Boreal climate, a climate characterized by long winters and short, cool to mild ... regions, ''Flavocetraria cucullata'' and ''F. nivalis'' (syn. ''Cetraria nivalis''). References Parmeliaceae Lichen genera Lecanorales genera Taxa named by Ingvar Kärnefelt Taxa named by Arne Thell {{Parmeliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silt
Silt is granular material of a size between sand and clay and composed mostly of broken grains of quartz. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water. Silt usually has a floury feel when dry, and lacks plasticity when wet. Silt also can be felt by the tongue as granular when placed on the front teeth (even when mixed with clay particles). Silt is a common material, making up 45% of average modern mud. It is found in many river deltas and as wind-deposited accumulations, particularly in central Asia, north China, and North America. It is produced in both very hot climates (through such processes as collisions of quartz grains in dust storms) and very cold climates (through such processes as glacial grinding of quartz grains.) Loess is soil rich in silt which makes up some of the most fertile agricultural land on Earth. However, silt is very vulnerable to erosion, and it has poor mechanical properties, making construction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascus
An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or species can occur in numbers of one (e.g. ''Monosporascus cannonballus''), two, four, or multiples of four. In a few cases, the ascospores can bud off conidia that may fill the asci (e.g. ''Tympanis'') with hundreds of conidia, or the ascospores may fragment, e.g. some ''Cordyceps'', also filling the asci with smaller cells. Ascospores are nonmotile, usually single celled, but not infrequently may be coenocytic (lacking a septum), and in some cases coenocytic in multiple planes. Mitotic divisions within the developing spores populate each resulting cell in septate ascospores with nuclei. The term ocular chamber, or oculus, refers to the epiplasm (the portion of cytoplasm not used in ascospore formation) that is surrounded by the "bourrelet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
