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Neviusia
''Neviusia'', the snow-wreaths, is a genus of ornamental plants, which are native to the United States, containing two extant species and one extinct species known from fossil leaves. This genus is a rare example of a disjunct range occurring in North America. The type species, ''Neviusia alabamensis'', occurs in several southeastern states, while second extant species, ''Neviusia cliftonii'', is endemic to the Mt Shasta region of California, and the extinct species ''Neviusia dunthornei'' is found in shale deposits in the Okanagan Highlands of Washington and British Columbia. It is named for Episcopal priest and botanist Reuben Nevius Reuben Denton Nevius (1827 – 14 December 1913) was an American botanist and Episcopal priest, missionary, and the first registrar of the Diocese of Olympia, Washington. Born in Ovid, New York, the Rev. Reuben Denton Nevius received in 1849 his D. .... References * * * * Kerrieae Rosaceae genera Flora of the United States {{a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neviusia Alabamensis
''Neviusia alabamensis'', the Alabama snow-wreath, is a small shrub which is native to the Southeastern United States. ''Neviusia alabamensis'' is considered rare throughout its range. It is found in widely scatted populations from northwestern Georgia to the Ozark Mountains, but the populations are thought to be mostly asexual clones, as no seed production has been observed. Because of its thinly scattered distribution and low genetic variability, it is of conservation concern. Its natural habitat is limestone woodlands with seasonal moisture.''Neviusia alabamensis'' There are two other members of the genus '' |
Neviusia
''Neviusia'', the snow-wreaths, is a genus of ornamental plants, which are native to the United States, containing two extant species and one extinct species known from fossil leaves. This genus is a rare example of a disjunct range occurring in North America. The type species, ''Neviusia alabamensis'', occurs in several southeastern states, while second extant species, ''Neviusia cliftonii'', is endemic to the Mt Shasta region of California, and the extinct species ''Neviusia dunthornei'' is found in shale deposits in the Okanagan Highlands of Washington and British Columbia. It is named for Episcopal priest and botanist Reuben Nevius Reuben Denton Nevius (1827 – 14 December 1913) was an American botanist and Episcopal priest, missionary, and the first registrar of the Diocese of Olympia, Washington. Born in Ovid, New York, the Rev. Reuben Denton Nevius received in 1849 his D. .... References * * * * Kerrieae Rosaceae genera Flora of the United States {{a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neviusia Cliftonii
''Neviusia cliftonii'' is a rare species of shrub in the rose family which is known by the common name Shasta snow-wreath. It is endemic to Shasta County, California, where it is known from about 25 occurrences in the mountains around Lake Shasta. The shrub was not known to science until 1992, when it was discovered east of Redding, California and described as a new species in ''Neviusia'', previously a monotypic genus. Description ''Neviusia cliftonii'' is an erect deciduous shrub reaching in maximum height. The alternately arranged leaves are oval or heart-shaped and lined with toothed lobes. The leaf blades reach long and are borne on short petioles. The inflorescence is an umbel-like cluster of 3 to 5 flowers. The flower is a ball of about 50 long, whiskery white stamens each about long. There are rarely a single white petal basal to the stamens, although the petals are often absent. The fruit type is a soft-bodied achene a few millimeters long natomically the fruit is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neviusia Dunthornei
''Neviusia dunthornei'' is an extinct species of flowering plants in the family Rosaceae. The species is solely known from the early Eocene, Ypresian stage, Allenby Formation Lacustrine deposits near the town of Princeton, British Columbia. History and classification ''Neviusia dunthornei'' is known from only two fossils, the holotype, number "UWBM 54169", and the paratype number "UWBM 97148". Both specimens are preserved in the paleobotanical collections housed in the Burke Museum of Natural History and Culture, part of the University of Washington in Seattle, Washington, USA. The species was described from the two leaf specimens both found at the One Mile Creek locality, UWBM number 53355 in 1991 by Wesley Wehr and Peter Dunthorne. This locality is placed in the early Eocene Allenby Formation, designated the type locality. The Allenby Formation is part of the Eocene Okanogan Highlands floras which span from the Klondike Mountain Formation in Ferry County, Washington north w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reuben Nevius
Reuben Denton Nevius (1827 – 14 December 1913) was an American botanist and Episcopal priest, missionary, and the first registrar of the Diocese of Olympia, Washington. Born in Ovid, New York, the Rev. Reuben Denton Nevius received in 1849 his D.D. from Union College in Schenectady, New York. In 1850, Nevius went to Columbus, Georgia for further religious study. After ordination, he served as an Episcopal priest in Wetumpka, Alabama. In 1872, Nevius was given the ecclesiastical responsibility for a wide circuit in eastern Oregon, where he established seven new congregations. His circuit-riding responsibilities later included eastern Washington and Idaho. He directed the building of many new churches, some of which are still standing. Asa Gray named the plant genus ''Neviusia ''Neviusia'', the snow-wreaths, is a genus of ornamental plants, which are native to the United States, containing two extant species and one extinct species known from fossil leaves. This genus is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerrieae
Kerrieae is a tribe of the rose family, Rosaceae, belonging to the subfamily Amygdaloideae Amygdaloideae is a subfamily within the flowering plant family Rosaceae. It was formerly considered by some authors to be separate from Rosaceae, and the family names Prunaceae and Amygdalaceae have been used. Reanalysis from 2007 has shown that .... Kerrieae genera include *'' Coleogyne'' Torr. *'' Kerria'' DC. *'' Neviusia'' A. Gray *'' Rhodotypos'' Siebold & Zucc. References External links Rosales tribes {{Amygdaloideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornamental Plant
Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that improve on the original species in qualities such as color, shape, scent, and long-lasting blooms. There are many examples of fine ornamental plants that can provide height, privacy, and beauty for any garden. These ornamental perennial plants have seeds that allow them to reproduce. One of the beauties of ornamental grasses is that they are very versatile and low maintenance. Almost any types of plant have ornamental varieties: trees, shrubs, climbers, grasses, succulents. aquatic plants, herbaceous perennials and annual plants. Non-botanical classifications include houseplants, bedding plants, hedges, plants for cut flowers and foliage plants. The cultivation of ornamental plants comes under floriculture and tree nurseries, which is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extant Taxon
Neontology is a part of biology that, in contrast to paleontology, deals with living (or, more generally, '' recent'') organisms. It is the study of extant taxa (singular: extant taxon): taxa (such as species, genera and families) with members still alive, as opposed to (all) being extinct. For example: * The moose (''Alces alces'') is an extant species, and the dodo (''Raphus cucullatus'') is an extinct species. * In the group of molluscs known as the cephalopods, there were approximately 600 extant species and 7,500 extinct species. A taxon can be classified as extinct if it is broadly agreed or certified that no members of the group are still alive. Conversely, an extinct taxon can be reclassified as extant if there are new discoveries of living species ("Lazarus species"), or if previously-known extant species are reclassified as members of the taxon. Most biologists, zoologists, and botanists are in practice neontologists, and the term neontologist is used large ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disjunct Distribution
In biology, a taxon with a disjunct distribution is one that has two or more groups that are related but considerably separated from each other geographically. The causes are varied and might demonstrate either the expansion or contraction of a species' range. Range fragmentation Also called range fragmentation, disjunct distributions may be caused by changes in the environment, such as mountain building and continental drift or rising sea levels; it may also be due to an organism expanding its range into new areas, by such means as rafting, or other animals transporting an organism to a new location (plant seeds consumed by birds and animals can be moved to new locations during bird or animal migrations, and those seeds can be deposited in new locations in fecal matter). Other conditions that can produce disjunct distributions include: flooding, or changes in wind, stream, and current flows, plus others such as anthropogenic introduction of alien introduced species either acciden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territories of the United States by population, most populous U.S. state and the List of U.S. states and territories by area, 3rd largest by area. It is also the most populated Administrative division, subnational entity in North America and the 34th most populous in the world. The Greater Los Angeles area and the San Francisco Bay Area are the nation's second and fifth most populous Statistical area (United States), urban regions respectively, with the former having more than 18.7million residents and the latter having over 9.6million. Sacramento, California, Sacramento is the state's capital, while Los Angeles is the List of largest California cities by population, most populous city in the state and the List of United States cities by population, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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