Information about Variety (botany)
In botanical nomenclature, variety is a rank below that of species: As such, it gets a ternary name (a name in three parts).
A variety will have an appearance distinct from other varieties, but will hybridize freely with those other varieties (if brought into contact). Usually varieties will be geographically separate from each other.
Example: The pincushion cactus, Escobaria vivipara (Nutt.) Buxb., is a wide-ranging variable species occurring from Canada to Mexico, and found throughout New Mexico below about 2600 m. Nine varieties have been described. Where the varieties of the pincushion cactus meet, they intergrade. The variety Escobaria vivipara var. arizonica is from Arizona, while Escobaria vivipara var. neo-mexicana is from New Mexico.
Notes:
A variety will have an appearance distinct from other varieties, but will hybridize freely with those other varieties (if brought into contact). Usually varieties will be geographically separate from each other.
Example: The pincushion cactus, Escobaria vivipara (Nutt.) Buxb., is a wide-ranging variable species occurring from Canada to Mexico, and found throughout New Mexico below about 2600 m. Nine varieties have been described. Where the varieties of the pincushion cactus meet, they intergrade. The variety Escobaria vivipara var. arizonica is from Arizona, while Escobaria vivipara var. neo-mexicana is from New Mexico.
Notes:
- To plant breeders, at least in countries that are signatory to the UPOV Convention, "variety" or "plant variety" is a legal term.
- In zoological nomenclature, the only officially-regulated rank below that of species is that of subspecies. Forms and morphs are used instead of varieties if needed, but are unregulated by the ICZN.
- In bacteriological nomenclature "variety" and "subspecies" are used interchangeably.
See also
Botanical nomenclature is the formal naming of plants, from a scientific point of view. It has a long history, going back perhaps to Theophrastos, but anyway back to the period when Latin was the scientific language throughout Europe.
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In botanical nomenclature, the ICBN prescribes a "three part name" (ternary name) for any taxon below the rank of species. The ranks below that of species explicitly allowed in the ICBN are
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- subspecies (subspecies) - recommended abbreviation: subsp.
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In population genetics, a cline is a gradual change of a character or feature (phenotype) in a species over a geographical area, often as a result of environmental heterogeneity.
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A "plant variety" is a legal term, following the UPOV Convention. Recognition of a cultivated plant as a "variety" (in this sense) provides its breeder with some legal protection, so-called plant breeders' rights, depending to some extent on the internal legislation of the
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The International Code of Zoological Nomenclature is a set of rules in zoology that have one fundamental aim: to provide the maximum universality and continuity in the naming of all animals according to taxonomic judgment.
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Forma (literally Latin for form) is used in a series of terms and abbreviations to describe variation in animals, especially insects. The terms or abbreviations are appended to the binomen or trinomen.
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Polymorphism in biology occurs when two or more clearly different types exist in the same population of the same species— in other words, the occurrence of more than one form or morph. The caste system in ants is an example.
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The International Code of Nomenclature of Bacteria (ICNB) governs the scientific names for bacteria. As such it is one of the Nomenclature Codes. Originally the botanical Code dealt with bacteria, and this kept references to bacteria until 1975.
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In biology, trinomial nomenclature refers to names for taxa below the rank of species. This is different for animals and plants:
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- for animals see trinomen. There is only one rank allowed below the rank of species: subspecies.
- for plants see ternary name.
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subvariety (subvarietas) is a taxon at a rank below that of variety (varietas) but above that of form (forma): it is an infraspecific taxon. Its name consists of three parts: a genus name, a specific epithet and an infraspecific epithet.
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In botanical nomenclature, a form (forma) is a taxon at a rank below that of variety; it is an infraspecific taxon. Its name consists of three parts: a genus name, a specific epithet, and an infraspecific epithet. The abbreviation "f.
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A "plant variety" is a legal term, following the UPOV Convention. Recognition of a cultivated plant as a "variety" (in this sense) provides its breeder with some legal protection, so-called plant breeders' rights, depending to some extent on the internal legislation of the
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cultivar is a cultivated plant that has been selected and given a unique name because it has desirable characteristics (decorative or useful) that distinguish it from otherwise similar plants of the same species. When propagated it retains those characteristics.
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hybrid has two meanings.[1]
The first meaning is the result of interbreeding between two animals or plants of different taxa. Hybrids between different species within the same genus are sometimes known as interspecific hybrids or crosses.
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The first meaning is the result of interbreeding between two animals or plants of different taxa. Hybrids between different species within the same genus are sometimes known as interspecific hybrids or crosses.
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race is any inbreeding group, including taxonomic subgroups such as subspecies, taxonomically subordinate to a species and superordinate to a subrace and marked by a pre-determined profile of latent factors of hereditary traits.
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