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Platismatia Tuckermanii
''Platismatia tuckermanii'' is a species of corticolous (bark-dwelling), foliose lichen in the family Parmeliaceae. It was first formally described as a species of ''Cetraria'' in 1843 by American botanist William Oakes. The species epithet honours lichenologist Edward Tuckerman, who collected the type specimen in Cambridge, Massachusetts, in 1838. William and Chicita Culberson transferred the taxon to the genus ''Platismatia'' in 1968. The lichen is found in Canada and the Southeastern United States. Although usually encountered growing on conifer Conifers are a group of conifer cone, cone-bearing Spermatophyte, seed plants, a subset of gymnosperms. Scientifically, they make up the phylum, division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single ... bark, it is also known to grow on old wooden fenceposts. It contains caperatic acid and atranorin as lichen products. References Parmeliaceae Lichen species Lichens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Oakes (botanist)
William Oakes (July 1, 1799-July 31, 1848) was an American botanist. William Oakes was born on July 1, 1799. He attended Harvard from 1816 and developed an interest in natural history under the guidance of his tutor, William Dandridge Peck. After graduation in 1820, Oakes studied law and then, from 1824, began a legal practice in Ipswich, Massachusetts. Oakes was among the first travelers on a path to the summit of Mount Washington, New Hampshire that had been constructed in 1821 by the pioneering Ethan Crawford. He came to know Crawford well during his numerous subsequent visits to the White Mountains in which Mount Washington lies. Oakes Gulf in the mountains is named after him. Oakes eventually gave up law to pursue full-time his interest in natural history. He was asked to contribute a description of White Mountains flora to a geological survey report in 1842 and thereafter spent much time on the project. Oakes drowned on July 31, 1848 after falling off a ferry runn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicita Culberson
Chicita Frances Culberson (born Chicita Frances Forman, November 1, 1931 in Philadelphia, Pennsylvania) is an American lichenologist. Education She graduated with a B.S. from the University of Cincinnati in 1953, where she also met her future husband, Bill Culberson. In 1954, Received an M.S. from the University of Wisconsin in 1954 and in 1959 received a Ph.D. from Duke University. Career A botanical researcher at Duke University, Culberson pioneered the use of thin-layer chromatography in the identification of secondary lichen products. In 1992, she became one of the first modern recipients of the Acharius Medal. In 2000, botanist Theodore Esslinger circumscribed ''Culbersonia'', which is a fungal genus in the family Caliciaceae and named in Bill Culberson and Chicita F. Culberson's honour, his "longtime friends and mentors". At the 9th International Association for Lichenology conference held virtually in Brazil on 4 August 2021, the lichen chemistry symposium was dedica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichens Described In 1843
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not plants. They may have tiny, leafless branches ( fruticose); flat leaf-like structures ( foliose); grow crust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen Species
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches ( fruticose); flat leaf-like structures ( [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen Product
Lichen products, also known as lichen substances, are organic compounds produced by a lichen. Specifically, they are secondary metabolites. Lichen products are represented in several different chemical classes, including terpenoids, orcinol derivatives, chromones, xanthones, depsides, and depsidones. Over 800 lichen products of known chemical structure have been reported in the scientific literature, and most of these compound are exclusively found in lichens. Examples of lichen products include usnic acid (a dibenzofuran), atranorin (a depside), lichexanthone (a xanthone), salazinic acid (a depsidone), and isolichenan, an α-glucan. Many lichen products have biological activity, and research into these effects is ongoing. Lichen products accumulate on the outer walls of the fungal hyphae, and are quite stable. Crystal deposits can be visualised using scanning electron microscopy. For this reason, even very old herbarium specimens can be analysed. The amount of lichen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atranorin
Atranorin is a chemical substance produced by some species of lichen. It is a secondary metabolite belonging to a group of compounds known as depsides. Atranorin has analgesic, anti-inflammatory, antibacterial, antifungal, cytotoxic, antioxidant, antiviral, and immunomodulatory properties. In rare cases, people can react allergic Allergies, also known as allergic diseases, refer a number of conditions caused by the hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include hay fever, food allergies, atopic derm ... to atranorin. References Further reading * * * * Polyphenols Lichen products {{organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conifer
Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All extant conifers are perennial woody plants with secondary growth. The great majority are trees, though a few are shrubs. Examples include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews.Campbell, Reece, "Phylum Coniferophyta". Biology. 7th. 2005. Print. P. 595 As of 1998, the division Pinophyta was estimated to contain eight families, 68 genera, and 629 living species. Although the total number of species is relatively small, conifers are ecologically important. They are the dominant plants over large areas of land, most notably the taiga of the Northern Hemisphere, but also in similar cool climates in mountains further south. Boreal conifers have many wintertime ada ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platismatia
''Platismatia'' is genus of medium to large foliose lichens in the family Parmeliaceae. The genus is widespread and contains 11 species. They resemble many other genera of foliose lichens in the Parmeliaceae, particularly ''Parmotrema ''Parmotrema'' is a genus of lichen belonging to the family Parmeliaceae. It is a large genus, containing an estimated 300 species, with a centre of diversity in subtropical regions of South America and the Pacific Islands. Members of the genus ...'', '' Cetrelia'', and '' Asahinea''. Most species are found in forests on the trunks and branches of conifer trees, although some species grow on rocks.Brodo, I. M., S. D. Sharnoff, and S. Sharnoff. 2001. Lichens of North America. Yale University Press: New Haven. Species of ''Platismatia'' can be used to produce an orange-brown, yellow-brown, or brown dye,Brough, S. G. 1984. Dye characteristics of British Columbia forest lichens. Syesis 17: 81-94. and at least one species was traditionally used ... [...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 the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Louis Culberson
William Louis "Bill" Culberson (April 5, 1929 in Indianapolis, Indiana – February 8, 2003 in Durham, North Carolina) was an American lichenologist. Professional history Culberson earned his bachelor's degree at the University of Cincinnati, where he was influenced by E. Lucy Braun; he subsequently attended the University of Paris and the University of Wisconsin–Madison. In 1955, Culberson joined the botany department at Duke University; he subsequently managed Duke's acquisition of the lichen-centric herbaria of Julien Harmand and Johan Havaas. He served as the Hugo L. Blomquist Professor. In 2010, the lichen collection was officially named the William Louis & Chicita F. Culberson Lichen Herbarium & Library. He served as president of the Botanical Society of America and the American Bryological and Lichenological Society and as director of the Sarah P. Duke Gardens. He was the first editor-in-chief of the journal ''Systematic Botany''. In 1992, he became one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corticolous Lichen
A corticolous lichen is a lichen that grows on bark.Alan Silverside's Lichen Glossary (a-f), Alan Silverside/ref> This is contrasted with lignicolous lichen, which grows on wood that has had the bark stripped from it,Alan Silverside's Lichen Glossary (g-o), Alan Silverside/ref> and saxicolous lichen, which grows on rock.Alan Silverside's Lichen Glossary (p-z), Alan Silverside/ref> Examples of corticolous lichens include the crustose lichen ''Graphis plumierae'', foliose lichen ''Melanohalea subolivacea'' and the fruticose ''Bryoria fuscescens ''Bryoria fuscescens'' is a species of lichen of the family Parmeliaceae. As of July 2021, its conservation status has not been estimated by the IUCN. In Iceland, where it grows as an epiphyte on downy birch stems and branches, it is classified ...''.Náttúrufræðistofnun Íslands celandic Institute of Natural History(1996). Válisti 1: Plöntur.' (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands. References Lichenolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
