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Amylocystis Lapponica
''Amylocystis lapponica'' (alternatively spelled ''Amylocystis lapponicus'') is a species of bracket fungus in the family Fomitopsidaceae, and the type species of genus '' Amylocystis''. It produces medium-sized, annual fruit bodies that are soft, and have a strong, distinct smell. The fungus is a saprophyte that feeds on coniferous wood of logs lying on the ground, and causes brown rot. It is a rather rare species that only occurs in old-growth forest. Taxonomy The fungus was originally described by Swedish mycologist Lars Romell in 1911, who called it ''Polyporus lapponicus''. The type collection was made in Nattavaara (Sweden), where it was found growing on fir. Romell initially thought the fungus might be ''Climacocystis borealis'', but ultimately rejected that opinion, as that species has an easily breakable fruit body, and its spores are of different size and shape. ''Amylocystis lapponica'' has been shuffled to several different polypore genera in its taxonomic his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungi
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood-decay Fungus
A wood-decay or xylophagous fungus is any species of fungus that digests moist wood, causing it to rot. Some species of wood-decay fungi attack dead wood, such as brown rot, and some, such as ''Armillaria'' (honey fungus), are parasitic and colonize living trees. Excessive moisture above the fibre saturation point in wood is required for fungal colonization and proliferation. In nature, this process causes the breakdown of complex molecules and leads to the return of nutrients to the soil. Wood-decay fungi consume wood in various ways; for example, some attack the carbohydrates in wood and some others decay lignin. The rate of decay of wooden materials in various climates can be estimated by empirical models.Viitanen, T. et al. (2010). Towards modelling of decay risk of wooden materials. European Journal of Wood and Wood Products 68:303-313. Wood-decay fungi can be classified according to the type of decay that they cause. The best-known types are brown rot, soft rot, and whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hymenium
The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. In some species all of the cells of the hymenium develop into basidia or asci, while in others some cells develop into sterile cells called cystidia (basidiomycetes) or paraphyses (ascomycetes). Cystidia are often important for microscopic identification. The subhymenium consists of the supportive hyphae from which the cells of the hymenium grow, beneath which is the hymenophoral trama, the hyphae that make up the mass of the hymenophore. The position of the hymenium is traditionally the first characteristic used in the classification and identification of mushrooms. Below are some examples of the diverse types which exist among the macroscopic Basidiomycota and Ascomycota. * In agarics, the hymenium is on the vertical faces of the gills. * In boletes and polypores, it is in a spongy mass of downward-pointing tubes. * In puffballs, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amyloid (mycology)
In mycology a tissue or feature is said to be amyloid if it has a positive amyloid reaction when subjected to a crude chemical test using iodine as an ingredient of either Melzer's reagent or Lugol's solution, producing a blue to blue-black staining. The term "amyloid" is derived from the Latin ''amyloideus'' ("starch-like"). It refers to the fact that starch gives a similar reaction, also called an amyloid reaction. The test can be on microscopic features, such as spore walls or hyphal walls, or the apical apparatus or entire ascus wall of an ascus, or be a macroscopic reaction on tissue where a drop of the reagent is applied. Negative reactions, called inamyloid or nonamyloid, are for structures that remain pale yellow-brown or clear. A reaction producing a deep reddish to reddish-brown staining is either termed a dextrinoid reaction (pseudoamyloid is a synonym) or a hemiamyloid reaction. Melzer's reagent reactions Hemiamyloidity Hemiamyloidity in mycology refers to a special ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyromyces
''Tyromyces'' is a genus of poroid fungi in the family Polyporaceae. It was circumscribed by mycologist Petter Karsten in 1881. The type species is the widely distributed '' Tyromyces chioneus'', commonly known as the white cheese polypore. The phylogenetic position of ''Tyromyces'' within the Polyporales is uncertain, but it appears that it does not belong to the "core polyporoid clade". ''Tyromyces'' is polyphyletic as it is currently circumscribed, and has been described as "a dumping place for monomitic white-rot species with thin-walled spores." The genus name is derived from the Ancient Greek words ("cheese") and (fungus"). Description ''Tyromyces'' fungi have fruit bodies that are pileate (i.e., with a cap) to resupinate ( crust-like). Fruit bodies are short-lived, and often mostly white, but turning a darker colour when dry. The colour of the pore surface is usually white to cream, sometime with greenish tinges. Like the cap surface, it darkens when dry. Microscopic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptoporus
''Leptoporus'' is a genus of polypore fungi. The type species, '' Leptoporus mollis'', is widespread throughout north temperate areas. The generic name is derived from the Ancient Greek words ("thin") and ("pore"). Although traditionally classified in the family Polyporaceae, recent molecular phylogenetic analysis supports the placement of ''Leptoporus '' in the Irpicaceae The Irpicaceae are a family of mostly polypores and crust fungi in the order Polyporales. Taxonomy The family was circumscribed in 2003 by mycologists Viacheslav Spirin and Ivan Zmitrovich. The type genus is '' Irpex''. Later multi-gene phylogen .... Species *'' Leptoporus alutaeformis'' Pat. (1920) *'' Leptoporus apalus'' (Cooke) Pat. (1900) *'' Leptoporus bulgaricus'' Pilát (1937) *'' Leptoporus canaliculatus'' (Pat.) Pat. (1900) *'' Leptoporus coriolus'' D.A.Reid (1963) *'' Leptoporus dalmaticus'' Pilát (1953) *'' Leptoporus lindtneri'' Pilát (1938) *'' Leptoporus micantiformis'' Pilát (1936) *'' L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basidiospore
A basidiospore is a reproductive spore produced by Basidiomycete fungi, a grouping that includes mushrooms, shelf fungi, rusts, and smuts. Basidiospores typically each contain one haploid nucleus that is the product of meiosis, and they are produced by specialized fungal cells called basidia. Typically, four basidiospores develop on appendages from each basidium, of which two are of one strain and the other two of its opposite strain. In gills under a cap of one common species, there exist millions of basidia. Some gilled mushrooms in the order Agaricales have the ability to release billions of spores. The puffball fungus ''Calvatia gigantea'' has been calculated to produce about five trillion basidiospores. Most basidiospores are forcibly discharged, and are thus considered ballistospores. These spores serve as the main air dispersal units for the fungi. The spores are released during periods of high humidity and generally have a night-time or pre-dawn peak concentration in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climacocystis Borealis
''Climacocystis borealis'' is a species of poroid fungus in the family Fomitopsidaceae. Taxonomy First described in 1821 by Swedish mycologist Elias Magnus Fries, it has since acquired an extensive synonymy of alternate scientific names. Until 2014, it was the sole member of the ''Climacocystis'', a genus circumscribed by Czech mycologists František Kotlaba and Zdeněk Pouzar in 1958, when the newly described Chinese species ''Climacocystis montana'' was added to the genus. Ecology and distribution ''Climacocystis borealis'' is both a saprophyte and a secondary pathogen that causes a heart rot in the roots and bole of host trees. It is widely distributed, and has been recorded from Asia, Europe, Oceania, and North America. In China, it is found in Shanxi, Guangdong, Sichuan, and Tibet Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nattavaara
Nattavaara is a minor locality in Gällivare Municipality, Norrbotten County in the province of Lapland in Sweden. The settlement had a permanent population of 114 as of the year 2015. Nattavaara is located by road south of municipal seat Gällivare. That is also the nearest urban area, with Jokkmokk being slightly further away to the southwest. The only paved roads are to the north and the east, whereas the Jokkmokk road transitions into a gravel road just west of the village. The settlement has a station on the rail line between Stockholm and Narvik in Nordland, Norway. Adjacent to the small village is the even smaller settlement of Nattavaara by. Climate Nattavaara has a subarctic climate (Köppen ''Dfc'') typical of central Lapland. Winters are long, dark and cold with an extensive snow cover, whereas the midnight sun The midnight sun is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle or south of the Antarctic Circle, when t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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