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Segregation (taxonomy)
In Alpha taxonomy, taxonomy, a segregate, or a segregate taxon is created when a taxon is split off from another taxon. This other taxon will be better known, usually bigger, and will continue to exist, even after the segregate taxon has been split off. A segregate will be either new or ephemeral: there is a tendency for taxonomists to disagree on segregates, and later workers often reunite a segregate with the 'mother' taxon. If a segregate is generally accepted as a 'good' taxon it ceases to be a segregate. Thus, this is a way of indicating change in the taxonomic status. It should not be confused with, for example, the subdivision of a genus into subgenus, subgenera. :For example, the genus ''Alsobia'' is a ''segregate'' from the genus ''Episcia''; The genera ''Filipendula'' and ''Aruncus'' are segregates from the genus ''Spiraea''. External links A more detailed explanation with multiple examples on mushrooms. Botanical nomenclature Plant taxonomy Taxonomy (biology) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha Taxonomy
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 evol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxon
In biology, a taxon ( back-formation from '' taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in '' Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic Generic or generics may refer to: In business * Generic term, a common name used for a range or class of similar things not protected by trademark * Generic brand, a brand for a product that does not have an associated brand or trademark, other ... name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, ''Cypraea'' (''Cypraea'') ''tigris'' Linnaeus, which belongs to the subgenus ''Cypraea'' of the genus ''Cypraea''. However, it is not mandatory, or even customary, when giving the name of a species, to include the subgeneric name. In the International Code of Nomenclature for algae, fungi, and plants (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alsobia
''Alsobia'' is a genus of flowering plants in the family Gesneriaceae, native to Mexico, Guatemala, and Costa Rica. It contains four species. The species in the genus are succulent and stoloniferous herb In general use, herbs are a widely distributed and widespread group of plants, excluding vegetables and other plants consumed for macronutrients, with savory or aromatic properties that are used for flavoring and garnishing food, for medicina ...s. They were previously included in the genus '' Episcia,'' but recent molecular studies have supported the separation of ''Alsobia'' from ''Episcia''. Species *'' Alsobia dianthiflora'' (syn. ''Episcia dianthiflora'') *'' Alsobia punctata'' (syn. ''Episcia punctata'') *''Alsobia chiapensis'' *''Alsobia baroniae'' Further reading *Wiehler, H. 1978. The genera ''Episcia'', ''Alsobia'', ''Nautilocalyx'', and ''Paradrymonia'' (Gesneriaceae). ''Selbyana'' 5: 11–60. References External links''Alsobia''from thGesneriad Reference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Episcia
''Episcia'' is a genus of flowering plants in the African violet family, Gesneriaceae. The ten species it contains are native to the tropical regions of Central and South America. The species are perennial herbaceous plants characterized by a stoloniferous habit, red (rarely orange, pink, blue or yellow) flowers, and frequently have marked or patterned leaves. Episcias are sometimes called flame violets. Taxonomy The genus name is derived from the Greek επισκισς (''episkios''), meaning "shaded". This refers to the understory habitat of these plants. For much of the twentieth century ''Episcia'' had a broad circumscription but since 1978 has been restricted to a much narrower one, with the genera '' Paradrymonia'', ''Chrysothemis'', '' Nautilocalyx'', and ''Alsobia'' separated from it. The segregation of these genera from ''Episcia'' has been supported in recent molecular phylogenies. Species Section ''Episcia'' * ''Episcia andina'' Wiehler * ''Episcia cupreata'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filipendula
''Filipendula'' is a genus of 12 species of perennial herbaceous flowering plants in the family Rosaceae, native to the temperate regions of the Northern Hemisphere. Well-known species include meadowsweet ('' Filipendula ulmaria'') and dropwort ('' Filipendula vulgaris''), both native to Europe, and queen-of-the-forest (''Filipendula occidentalis'') and queen-of-the-prairie (''Filipendula rubra''), native to North America. The species grow to between 0.5–2 m tall, with large inflorescences of small five-petalled flowers, creamy-white to pink-tinged in most species, dark pink in ''F. rubra''. ''Filipendula'' fruit are unusual, sometimes described as an indehiscent follicle, or as an achene. ''Filipendula'' species are used as food plants by the larvae of some Lepidoptera species: emperor moth, grey pug, grizzled skipper, Hebrew character, lime-speck pug, mottled beauty and the satellite have all been recorded on meadowsweet. The species were in the past sometimes tre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aruncus
''Aruncus'' is a genus of clump-forming herbaceous perennial plants in the family Rosaceae. Botanical opinion of the number of species differs, with from one to four species accepted. They are closely related to the genera '' Filipendula'' and '' Spiraea'', and are native to mountainous damp woodland in temperate regions of the Northern Hemisphere. Creamy white plumes of flowers are produced above veined and toothed leaflets. *''Aruncus dioicus'' (goatsbeard) occurs throughout the cooler parts of Europe, Asia and North America. In the broad sense, this is the only species in the genus, with the species below treated as synonyms or varieties of it by some botanists. *''Aruncus aethusifolius'' (dwarf goatsbeard or Korean goatsbeard) has a restricted range, limited to Korea. This species appears in cultivation, and has gained the Royal Horticultural Society's Award of Garden Merit. *''Aruncus gombalanus'' (Yunnan goatsbeard) occurs in the mountains of northwest Yunnan and adjacent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiraea
''Spiraea'' , sometimes spelled spirea in common names, and commonly known as meadowsweets or steeplebushes, is a genus of about 80 to 100 species''Spiraea''. Flora of China. of s in the family . They are native to the temperate , with the greatest diversity in eastern Asia. The genus formerly included the herbaceous species now segregated [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mushroom
A mushroom or toadstool is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground, on soil, or on its food source. ''Toadstool'' generally denotes one poisonous to humans. The standard for the name "mushroom" is the cultivated white button mushroom, ''Agaricus bisporus''; hence the word "mushroom" is most often applied to those fungi ( Basidiomycota, Agaricomycetes) that have a stem ( stipe), a cap ( pileus), and gills (lamellae, sing. lamella) on the underside of the cap. "Mushroom" also describes a variety of other gilled fungi, with or without stems, therefore the term is used to describe the fleshy fruiting bodies of some Ascomycota. These gills produce microscopic spores that help the fungus spread across the ground or its occupant surface. Forms deviating from the standard morphology usually have more specific names, such as " bolete", " puffball", " stinkhorn", and " morel", and gilled mushrooms themselves are often called " agarics" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanical Nomenclature
Botanical nomenclature is the formal, scientific naming of plants. It is related to, but distinct from taxonomy. Plant taxonomy is concerned with grouping and classifying plants; botanical nomenclature then provides names for the results of this process. The starting point for modern botanical nomenclature is Linnaeus' '' Species Plantarum'' of 1753. Botanical nomenclature is governed by the ''International Code of Nomenclature for algae, fungi, and plants'' (''ICN''), which replaces the ''International Code of Botanical Nomenclature'' (''ICBN''). Fossil plants are also covered by the code of nomenclature. Within the limits set by that code there is another set of rules, the '' International Code of Nomenclature for Cultivated Plants (ICNCP)'' which applies to plant cultivars that have been deliberately altered or selected by humans (see cultigen). History and scope Botanical nomenclature has a long history, going back beyond the period when Latin was the scientific language ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Taxonomy
Plant taxonomy is the science that finds, identifies, describes, classifies, and names plants. It is one of the main branches of taxonomy (the science that finds, describes, classifies, and names living things). Plant taxonomy is closely allied to plant systematics, and there is no sharp boundary between the two. In practice, "plant systematics" involves relationships between plants and their evolution, especially at the higher levels, whereas "plant taxonomy" deals with the actual handling of plant specimens. The precise relationship between taxonomy and systematics, however, has changed along with the goals and methods employed. Plant taxonomy is well known for being turbulent, and traditionally not having any close agreement on circumscription and placement of taxa. See the list of systems of plant taxonomy. Background Classification systems serve the purpose of grouping organisms by characteristics common to each group. Plants are distinguished from animals by various tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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