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Gentianopsis Macounii
''Gentianopsis virgata'', commonly known as lesser fringed gentian, narrow-leaved fringed gentian, or smaller fringed gentian, is a biennial herbaceous species of plant, native to eastern USA and eastern Canada. Taxonomy Broadly transcribed, ''Gentianopsis crinita'' (Froel.) Ma is an eastern North American species complex, containing a group of closely related taxa, including ''G. virgata''. Further species were described in the past, but a lack of difference in nrDNA and morphology Morphology, from the Greek and meaning "study of shape", may refer to: Disciplines *Morphology (archaeology), study of the shapes or forms of artifacts *Morphology (astronomy), study of the shape of astronomical objects such as nebulae, galaxies, ... does not support their recognition. Three subspecies are currently recognized:Brouillet, L., F. Coursol, S.J. Meades, M. Favreau, M. Anions, P. Bélisle & P. Desmet. 2010+. VASCAN, the Database of Vascular Plants of Canada. http://data.canadensys.net/v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constantine Samuel Rafinesque
Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultimately settling in Ohio in 1815, where he made notable contributions to botany, zoology, and the study of prehistoric earthworks in North America. He also contributed to the study of ancient Mesoamerican linguistics, in addition to work he had already completed in Europe. Rafinesque was an eccentric and erratic genius. He was an autodidact, who excelled in various fields of knowledge, as a zoologist, botanist, writer and polyglot. He wrote prolifically on such diverse topics as anthropology, biology, geology, and linguistics, but was honored in none of these fields during his lifetime. Indeed, he was an outcast in the American scientific community whose submissions were rejected automatically by leading journals. Among his theories were th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Josef Ludwig Holub
The Professor Josef Ludwig Holub (5 February 1930 in Mladá Boleslav, (now Czech Republic) – 23 July 1999) was a Czech botanist who described a number of new species, worked on systematic reorganization of botanical groups, and contributed greatly to the study of European flora. Biography Josef Holub studied at Charles University in Prague, becoming a lecturer in botany in 1953. He co-founded the Czech Institute of Botany where he worked for many years. He also helped create the Department of Biosystematics, and the journal ''Folia'', published by the "Geobotanical and Phytotaxonomic Institute. In 1991 he was named president of the Czech Botanical Society. He participated in many botanical field studies in central Europe. Work He worked on vascular plant taxonomy. He contributed to economic botany, especially with his work on the flora of Slovakia and the Czech Republic. *Holub, J et al. 1967. "Sobrevista de las unidades de vegetación superior de Checoslovaquia", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensu Lato
''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular concept, but it also appears in expressions that indicate the convention or context of the usage. Common qualifiers ''Sensu'' is the ablative case of the noun ''sensus'', here meaning "sense". It is often accompanied by an adjective (in the same case). Three such phrases are: *''sensu stricto'' – "in the strict sense", abbreviation ''s.s.'' or ''s.str.''; *''sensu lato'' – "in the broad sense", abbreviation ''s.l.''; *''sensu amplo'' – "in a relaxed, generous (or 'ample') sense", a similar meaning to ''sensu lato''. Søren Kierkegaard uses the phrase ''sensu eminenti'' to mean "in the pre-eminent r most important or significantsense". When appropriate, comparative and superlative adjectives may also be used to convey the meaning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gentianopsis Crinita
''Gentianopsis crinita'' (sometimes called greater fringed gentian or blue gentian) is a biennial herbaceous species, native to eastern USA and eastern Canada. The flowers of fringed gentian open on sunny days, but generally remain closed on cloudy days. Individual plants live for only one or two years; the plant is noted as having become relatively rare. It grows in moist, limey woods, meadows, and stream banks. In autumn, solitary, iridescent blue flowers develop on naked peduncles approximately in height. Each finely fringed petal is in length. The outermost flower parts are two pairs of green sepals, strongly winged and flared on the basal margins, the outer pair much larger than the inner. It is closely related to ''Gentianopsis virgata'' (Raf.) Holub, which is sometimes lumped within a broadly transcribed ''G. crinita''. According to ancient Roman naturalist Pliny, King Gentius of Illyria found that the roots were useful as an emetic, cathartic, and tonic. From him, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internal Transcribed Spacer
Internal transcribed spacer (ITS) is the spacer DNA situated between the small-subunit ribosomal RNA (rRNA) and large-subunit rRNA genes in the chromosome or the corresponding transcribed region in the polycistronic rRNA precursor transcript. ITS across life domains In bacteria and archaea, there is a single ITS, located between the 16S and 23S rRNA genes. Conversely, there are two ITSs in eukaryotes: ITS1 is located between 18S and 5.8S rRNA genes, while ITS2 is between 5.8S and 28S (in opisthokonts, or 25S in plants) rRNA genes. ITS1 corresponds to the ITS in bacteria and archaea, while ITS2 originated as an insertion that interrupted the ancestral 23S rRNA gene. Organization In bacteria and archaea, the ITS occurs in one to several copies, as do the flanking 16S and 23S genes. When there are multiple copies, these do not occur adjacent to one another. Rather, they occur in discrete locations in the circular chromosome. It is not uncommon in bacteria to carry tRN ... [...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 Friedrich Burdach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merritt Lyndon Fernald
Merritt Lyndon Fernald (October 5, 1873 – September 22, 1950) was an American botanist. He was a respected scholar of the taxonomy and phytogeography of the vascular plant flora of temperate eastern North America. During his career, Fernald published more than 850 scientific papers and wrote and edited the seventh and eighth editions of ''Gray's Manual of Botany''. Fernald coauthored the book ''Edible Wild Plants of Eastern North America'' in 1919–1920 with Alfred Kinsey, which was published in 1943. Biography Fernald was born in Orono, Maine. His parents were Mary Lovejoy Heywood and Merritt Caldwell Fernald, a college professor at the University of Maine. Fernald attended Orono High School, during which time he decided that he wanted to become a botanist. He collected plants around Orono and published two botanical papers while still attending high school. Fernald attended Maine State College for a year, but began working as an assistant at the Gray Herbarium at Harvard Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theo Holm
Herman Theodor "Theo" Holm (February 3, 1854 - December 26, 1932) was a Danish-American systematic botanist, agriculturalist and plant pathologist. His works dealt principally with plants from the Arctic and from the Rocky Mountains, mainly taxonomy and morphology. He published over 150 papers reflecting his research which included his series ''Studies on the Cyperaceae'' and ''Medicinal Plants of North America''. Biography Herman Theodor Holm was born in Copenhagen, Denmark. He studied botany at the University of Copenhagen under professor Eugenius Warming and graduated 1880. In 1882–1883, he participated in the expedition on board the Danish vessel ''Dijmphna'' (''Dijmphna-expeditionen 1882-83'') to the territory between Russia and the North Pole during the First International Polar Year. The ship was icebound for a period in the Kara Sea. He also explored the flora of West Greenland as assistant to Eugenius Warming on the '' Fylla expedition'' in 1884. He emigrated to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Scott Pringle
James Scott Pringle is a Canadian botanist. Life James Scott Pringle is Plant Taxonomist at Royal Botanical Gardens in Burlington, Ontario, Canada. He completed his undergraduate education at Dartmouth College in Hanover, New Hampshire, United States. He earned his doctorate at University of Tennessee under the supervision of Aaron John Sharp. Work Dr. Pringle joined the staff of Royal Botanical Gardens in 1963, as RBG's first full-time scientist. Over the course of his career to date, Dr. Pringle has been binomial author or co-author of many species of plants. He has named or updated the taxonomy of 88 species, subspecies, and sub-families of various vascular plants, mostly in the Gentian Family. He is also a published authority on the history of botanical exploration in Canada. He serves as an Adjunct Professor in the Biology Department of McMaster University. In 2004 a newly described species of tree, ''Macrocarpaea pringleana'', was named in Dr. Pringle's honour. ''M. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gentianopsis
''Gentianopsis'' is a genus of flowering plants in the gentian family known commonly as fringed gentians. These are similar to the gentians of genus ''Gentiana''. Most have flowers which are blue to purple in color. They may be annual or perennial. They are native to Eurasia and temperate North America. Species include: *''Gentianopsis barbellata'' - perennial fringed gentian *''Gentianopsis ciliata'' - fringe-flowered gentian *''Gentianopsis crinita'' - greater fringed gentian *''Gentianopsis detonsa'' - windmill fringed gentian *''Gentianopsis holopetala'' - Sierra fringed gentian *''Gentianopsis macounii'' - Macoun's fringed gentian *''Gentianopsis macrantha'' - grand fringed gentian *''Gentianopsis simplex'' - oneflower fringed gentian *''Gentianopsis thermalis'' - Rocky Mountain fringed gentian *''Gentianopsis virgata ''Gentianopsis virgata'', commonly known as lesser fringed gentian, narrow-leaved fringed gentian, or smaller fringed gentian, is a biennial herbaceous speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
