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Symphyotrichum Kentuckiense
(formerly ''Aster kentuckiensis'') is a rare species of flowering plant in the Asteraceae family and is commonly known as , , , , or . It is a perennial, herbaceous plant that is endemic to broken limestone cedar glades and roadsides in Alabama, Georgia, Kentucky, and Tennessee. It blooms from August through October, reaches heights between and , and has green to reddish-brown stems. It is a nearly hairless plant with blue to blue-violet ray florets. ''Symphyotrichum priceae'' was once considered the name of the plant, with ' and ''Aster kentuckiensis'' placed as its taxonomic synonyms. In 2021, botanist MaxE. Medley proposed that this treatment was incorrect. , what was originally described as ''Aster priceae'' was accepted to be the hybrid between ' and ''Symphyotrichum pilosum''var. ''pilosum'' and has been named ''Symphyotrichum''× ''priceae''. The hybrid is a somewhat hairy plant rather than a hairless one, and its characteristics are intermediate between its parent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamilton County, Tennessee
Hamilton County is a county located in the U.S. state of Tennessee. It is located in the southern part of East Tennessee on the border with Georgia. As of the 2020 census, the population was 366,207, making it the fourth-most populous county in Tennessee. Its county seat is Chattanooga, located along the Tennessee River. The county was named for Alexander Hamilton, the first Secretary of the Treasury. Hamilton County is one of 95 counties within Tennessee. Hamilton County is part of the Chattanooga, TN- GA Metropolitan Statistical Area. The county was created on October 25, 1819. Hamilton County expanded to meet the state line with Georgia after absorbing parts of three different counties including Bledsoe, Marion, and Rhea. Part of the traditional Cherokee homeland, the county was created after the Cherokee signed a treaty in 1817 with the United States and ceded land north of the Hiwassee River. In the 21st century, Hamilton County is the eighth-highest income Tennes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glabrousness
Glabrousness (from the Latin '' glaber'' meaning "bald", "hairless", "shaved", "smooth") is the technical term for a lack of hair, down, setae, trichomes or other such covering. A glabrous surface may be a natural characteristic of all or part of a plant or animal, or be due to loss because of a physical condition, such as alopecia universalis in humans, which causes hair to fall out or not regrow. In botany Glabrousness or otherwise, of leaves, stems, and fruit is a feature commonly mentioned in plant keys; in botany and mycology, a ''glabrous'' morphological feature is one that is smooth and may be glossy. It has no bristles or hair-like structures such as trichomes. In anything like the zoological sense, no plants or fungi have hair or wool, although some structures may resemble such materials. The term "glabrous" strictly applies only to features that lack trichomes at all times. When an organ bears trichomes at first, but loses them with age, the term used is ''glab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbaceous Plant
Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of the '' Shorter Oxford English Dictionary'' defines "herb" as: #"A plant whose stem does not become woody and persistent (as in a tree or shrub) but remains soft and succulent, and dies (completely or down to the root) after flowering"; #"A (freq. aromatic) plant used for flavouring or scent, in medicine, etc.". (See: Herb) The same dictionary defines "herbaceous" as: #"Of the nature of a herb; esp. not forming a woody stem but dying down to the root each year"; #"BOTANY Resembling a leaf in colour or texture. Opp. scarious". Botanical sources differ from each other on the definition of "herb". For instance, the Hunt Institute for Botanical Documentation includes the condition "when persisting over more than one growing season, the par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance ( shape, structure, colour, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of the internal parts like bones and organs, i.e. internal morphology (or anatomy). This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarah Frances Price
Sarah Frances Price (1849 – 3 July 1903) was an American botanist and scientific illustrator. Price discovered many rare plants and is credited with classifying a large portion of Kentucky's flora. Also an artist, she drew about fifteen hundred southern plants in pencil and watercolor. Biography Price was born in 1849 in Evansville, Indiana, the third child of Alexander Price and Maria Price. Soon after Price was born, her family moved to Kentucky. With the onset of the American Civil War, the family moved to Indiana and taught at church-run schools including the Episcopal Church school St. Agnes Hall. At the end of the Civil War, the Prices returned to Bowling Green, Kentucky. During her career, Price published over forty scientific papers. A lifelong botanist, she had a private herbarium with about 2000 plants in it. Several of her drawings were showcased at the World's Columbian Exposition, where she won several awards. Price drew over one-hundred fifty birds, and over o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowling Green, Kentucky
Bowling Green is a home rule-class city and the county seat of Warren County, Kentucky, United States. Founded by pioneers in 1798, Bowling Green was the provisional capital of Confederate Kentucky during the American Civil War. As of the 2020 census, its population of 72,294 made it the third-most-populous city in the state, after Louisville and Lexington; its metropolitan area, which is the fourth largest in the state after Louisville, Lexington, and Northern Kentucky, had an estimated population of 179,240; and the combined statistical area it shares with Glasgow has an estimated population of 233,560. In the 21st century, it is the location of numerous manufacturers, including General Motors, Spalding, and Fruit of the Loom. The Bowling Green Assembly Plant has been the source of all Chevrolet Corvettes built since 1981. Bowling Green is also home to Western Kentucky University and the National Corvette Museum. History Settlement and incorporation The first Euro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessaril ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NatureServe Conservation Status
The NatureServe conservation status system, maintained and presented by NatureServe in cooperation with the Natural Heritage Network, was developed in the United States in the 1980s by The Nature Conservancy (TNC) as a means for ranking or categorizing the relative imperilment of species of plants, animals, or other organisms, as well as natural ecological communities, on the global, national or subnational levels. These designations are also referred to as NatureServe ranks, NatureServe statuses, or Natural Heritage ranks. While the Nature Conservancy is no longer substantially involved in the maintenance of these ranks, the name TNC ranks is still sometimes encountered for them. NatureServe ranks indicate the imperilment of species or ecological communities as natural occurrences, ignoring individuals or populations in captivity or cultivation, and also ignoring non-native occurrences established through human intervention beyond the species' natural range, as for example wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NatureServe
NatureServe, Inc. is a non-profit organization based in Arlington County, Virginia, US, that provides proprietary wildlife conservation-related data, tools, and services to private and government clients, partner organizations, and the public. NatureServe reports being "headquartered in Arlington, Virginia, with regional offices in four U.S. locations and in Canada." In calendar year 2011 they reported having 86 employees, 6 volunteers, and 15 independent officers. History The Nature Conservancy reports that in 2000 it spun off its 85-center Natural Heritage Network "into a new independent organization, the Association for Biodiversity Information (later renamed NatureServe)." NatureServe reports that it was established in 1994 as the Association for Biodiversity Information. In 2001 the IRS approved a name change to NatureServe that was requested in 1999, while maintaining the organization's 501(c)(3) tax-exempt status granted in July 1995. NatureServe's website declares that it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symphyotrichum Pilosum
(formerly ''Aster pilosus'') is a perennial, herbaceous, flowering plant in the Asteraceae family native to central and eastern North America. It is commonly called , , , , , , , or . It may reach tall, and its flowers have white ray florets and yellow disk florets. Description ''Symphyotrichum pilosum'' is a perennial, herbaceous plant that may reach tall. Its flowers have white ray florets and yellow disk florets. Chromosomes has a monoploid number (also called ''base number'') of eight chromosomes There are plants of ''pilosum'' with four and six sets of the chromosomes, tetraploid with 32 total and hexaploid with 48 total. These cytotypes occur regularly, with occasional pentaploids (five sets) that have 40 in total. The involucre and floret sizes are different between the tetraploids and hexaploids, and the latter are found primarily in formerly glaciated A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
F1 Hybrid
An F1 hybrid (also known as filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where the term F1 crossbreed may be used. The term is sometimes written with a subscript, as F hybrid. Subsequent generations are called F, F, etc. The offspring of distinctly different parental types produce a new, uniform phenotype with a combination of characteristics from the parents. In fish breeding, those parents frequently are two closely related fish species, while in plant and animal breeding, the parents often are two inbred lines. Gregor Mendel focused on patterns of inheritance and the genetic basis for variation. In his cross-pollination experiments involving two true-breeding, or homozygous, parents, Mendel found that the resulting F1 generation was heterozygous and consistent. The offspring showed a combination of the phenotypes from each parent that were genetically dominant. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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