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Pholiotina Arrhenii
''Pholiotina'' is a genus of small agaric fungi. It was circumscribed by Swiss mycologist Victor Fayod in 1889 for ''Conocybe''-like species with partial veils. The genus has since been expanded to include species lacking partial veils. Taxonomic details The genus ''Pholiotina'' is defined as small thin ''Mycena''-like mushrooms, with an hymenoderm pileipellis, a dry cap surface, cystidia that are sub-capitate to blunt, and spores which are rusty brown in deposit. Spores of mushrooms of this genus are thick walled, smooth and have a germ pore. Victor Fayod designated ''Pholiotina blattaria'' as the type species of ''Pholiotina'', but this name was used for many different species of ''Pholiotina'' with partial veils and it is unclear which species is really ''P. blattaria'', which makes it a nomen dubium. He designated a lectotype for this species in the same publication, and microscopic examination revealed that this specimen belongs to the species ''P. vexans'', making ''P. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pholiotina Smithii
''Conocybula cyanopus'' is a species of fungus that contains psychoactive compounds including psilocybin and the uncommon aeruginascin. Originally described as ''Galerula cyanopus'' by American mycologist George Francis Atkinson in 1918. It was transferred to ''Conocybe'' by Robert Kühner in 1935 before being transferred to ''Pholiotina'' by Rolf Singer in 1950 and finally to '' Conocybula'' by T. Bau & H. B. Song in 2024. ''Conocybula cyanopus'' is recognized as the type species of ''Conocybula sect. Cyanopodae''. While the taxon ''Conocybula smithii'' has sometimes been considered as a junior synonym of ''Conocybula cyanopus'', this much more common species differs by its distribution, DNA barcode, length of its cheilocystidia and pileocystidia. Description ''Conocybula cyanopus'' is a small saprotrophic mushroom with a conic to broadly convex cap which is smooth and colored ocher to cinnamon brown. It is usually less than 25 mm across and the margin is striate, of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nomen Dubium
In binomial nomenclature, a ''nomen dubium'' (Latin for "doubtful name", plural ''nomina dubia'') is a scientific name that is of unknown or doubtful application. Zoology In case of a ''nomen dubium,'' it may be impossible to determine whether a specimen belongs to that group or not. This may happen if the original type series (i. e. holotype, isotype, syntype or paratype) is lost or destroyed. The zoological and botanical codes allow for a new type specimen, or neotype, to be chosen in this case. A name may also be considered a ''nomen dubium'' if its name-bearing type is fragmentary or lacking important diagnostic features (this is often the case for species known only as fossils). To preserve stability of names, the ''International Code of Zoological Nomenclature'' allows a new type specimen, or neotype, to be chosen for a ''nomen dubium'' in this case. 75.5. Replacement of unidentifiable name-bearing type by a neotype. When an author considers that the taxonomic identity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galerella Nigeriensis
''Herpestes'' is a genus within the mongoose family Herpestidae. Several species in the family are known as slender mongooses. It is the type genus of the family, and comprises 5-6 living species, each with several subspecies. Fossil remains of three prehistoric species were excavated in France, and described in 1853. Characteristics The living ''Herpestes'' species are sexually dimorphic, with females smaller than males. They range in weight from . They share several characteristics, including the shape of the cheek teeth and of the tympanic bullae, and the presence of the first upper molar teeth. They are all solitary. Males have one chromosome less than females, as one Y chromosome is translocated to an autosome. Classification The scientific name ''Herpestes'' was proposed by Johann Karl Wilhelm Illiger in 1811 for mongoose species in the south of the Old World, commonly called "Ichneumon" at the time. Until 1835, 12 mongoose species from Africa and Asia were classified as b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolbitius
''Bolbitius'' is a genus of small mushrooms in the family Bolbitiaceae. Description The genus ''Bolbitius'' is defined as small thin ''Mycena''-like mushrooms, with a hymenoderm pileipellis, a glutinous cap surface, and spores that are brown in deposit. Spores of mushrooms of this genus are thick-walled, smooth and have a germ pore. Species , Index Fungorum lists 54 valid species in ''Bolbitius'': *'' Bolbitius acer'' *'' Bolbitius affinis'' *'' Bolbitius albiceps'' *''Bolbitius albus'' *'' Bolbitius alliaceus'' *'' Bolbitius ameghinoi'' *'' Bolbitius broadwayi'' *'' Bolbitius bruchii'' *''Bolbitius brunneus'' *''Bolbitius caducus'' *''Bolbitius callistus'' *''Bolbitius citrinus'' *''Bolbitius compactus'' *''Bolbitius coprophilus'' *''Bolbitius cremeus'' *''Bolbitius demangei'' *''Bolbitius elegans'' *'' Bolbitius excoriatus'' *'' Bolbitius exiguus'' *'' Bolbitius expansus'' *''Bolbitius ferrugineus'' *'' Bolbitius flavellus'' *''Bolbitius flavus'' *'' Bolbitius floridanus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Descolea
''Descolea'' is a genus of fungi in the family Bolbitiaceae. Described by mycologist Rolf Singer in 1952, the widespread genus contains about 15 species. It was formerly placed in the family Cortinariaceae because of its Wiktionary:limoniform, limoniform basidiospores and its ectomycorrhizal lifestyle. A 2013 molecular phylogenetics study by Tóth ''et al.'' found it to be closely related to the genus ''Pholiotina'' The genus ''Pseudodescolea'', erected for the single ''Descolea''-like species ''Pseudodescolea lepiotiformis'', was formerly considered distinct until a 1990 study found it to be a synonym of ''Descolea antarctica''. The genus name of ''Descolea'' is in honour of Horacio Raúl Descole (1910-1984), who was an Argentine apothecary, biochemist and botanist. Species See also *List of Agaricales genera References Bolbitiaceae Agaricales genera Taxa named by Rolf Singer Taxa described in 1952 {{Agaricales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach to taxonomy adopted by most biological fields. The common ancestor may be an individual, a population, or a species (extinct or Extant taxon, extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed ''monophyletic'' (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming Taxon, taxa that are not clades; that is, taxa that are not Monophyly, monophyletic. Some of the relationships between organisms that the molecul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Series (botany)
In botany and plant taxonomy, a series is a subdivision of a genus, a taxonomic rank below that of section (and subsection) but above that of species. Sections and/or series are typically used to help organize very large genera, which may have hundreds of species. Cultivar marketing The term "series" is also used (in seed marketing) for groupings of cultivar A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root a ...s, but this term has no formal status with that meaning in the '' ICNCP''.Glossary in References Botanical nomenclature Plant taxonomy {{Botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Section (botany)
In botany, a section () is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section; and the rank of Series (botany), series, if present, is below the section. Sections may in turn be divided into subsections.Article 4 in Sections are typically used to help organise very large genera, which may have hundreds of species. A botanist wanting to distinguish groups of species may prefer to create a taxon at the rank of section or series to avoid making combinatio nova, new combinations, i.e. many new Binomial nomenclature, binomial names for the species involved. Examples: * ''Lilium'' sectio ''Martagon'' Rchb. are the Turks' cap lilies * ''Plagiochila aerea'' Taylor is the type species of ''Plagiochila'' sect. ''Bursatae'' See also * Section (biology) References Plant sections, Botanical nomenclature, Section Plant taxonomy Fungus sections {{Botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classification (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, having developed a ranked system known as Linnaean taxonomy for categorizing 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 evolutionary relationships among organisms, both li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clades
In biology, a clade (), also known as a monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach to taxonomy adopted by most biological fields. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed ''monophyletic'' (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organisms that the molecular biology arm of cladistics has revealed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
