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Quercus Ser. Virentes
''Quercus'' series ''Virentes'' ─ also called subsection ''Virentes'' ─ is a monophyletic group of seven North American evergreen or brevideciduous live oak species within the genus ''Quercus'' subgenus ''Quercus'' section ''Quercus''. * ''Quercus brandegeei'' - Baja California * ''Quercus fusiformis'' - Texas live oak or Plateau live oak — south central North America * ''Quercus geminata'' - sand live oak — southeastern North America * ''Quercus minima'' - dwarf live oak — southeastern North America * ''Quercus oleoides'' - Costa Rica into Mexico * ''Quercus sagraeana'' - Cuban live oak - western Cuba * ''Quercus virginiana'' - southern live oak — southeastern North America See also * List of evergreen species in genus ''Quercus'' References {{Taxonbar, from=Q7271348 Plant series Virentes ''Quercus'' series ''Virentes'' ─ also called subsection ''Virentes'' ─ is a monophyletic group of seven North American evergreen or brevideciduous live oak species w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kevin C
Kevin () is the anglicized form of the Irish masculine given name (; mga, Caoimhghín ; sga, Cóemgein ; Latinized as ). It is composed of "dear; noble"; Old Irish and ("birth"; Old Irish ). The variant ''Kevan'' is anglicized from , an Irish diminutive form.''A Dictionary of First Names''. Oxford University Press (2007) s.v. "Kevin". The feminine version of the name is (anglicised as ''Keeva'' or ''Kweeva''). History Saint Kevin (d. 618) founded Glendalough abbey in the Kingdom of Leinster in 6th-century Ireland. Canonized in 1903, he is one of the patron saints of the Archdiocese of Dublin. Caomhán of Inisheer, the patron saint of Inisheer, Aran Islands, is properly anglicized ''Cavan'' or ''Kevan'', but often also referred to as "Kevin". The name was rarely given before the 20th century. In Ireland an early bearer of the anglicised name was Kevin Izod O'Doherty (1823–1905) a Young Irelander and politician; it gained popularity from the Gaelic revival of the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baja California
Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mexico. Before becoming a state in 1952, the area was known as the North Territory of Baja California (). It has an area of (3.57% of the land mass of Mexico) and comprises the northern half of the Baja California Peninsula, north of the 28th parallel, plus oceanic Guadalupe Island. The mainland portion of the state is bordered on the west by the Pacific Ocean; on the east by Sonora, the U.S. state of Arizona, and the Gulf of California; on the north by the U.S. state of California; and on the south by Baja California Sur. The state has an estimated population of 3,769,020 as of 2020, significantly higher than the sparsely populated Baja California Sur to the south, and similar to San Diego County, California, to its north. Over 75% of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Live Oak
Live oak or evergreen oak is any of a number of oaks in several different sections of the genus ''Quercus'' that share the characteristic of evergreen foliage. These oaks are not more closely related to each other than they are to other oaks. The name ''live oak'' comes from the fact that evergreen oaks remain green and "live" throughout winter, when other oaks are dormant and leafless. The name is used mainly in North America, where evergreen oaks are widespread in warmer areas along the Atlantic coast from southeast Virginia to Florida, west along the Gulf Coast to Louisiana and Mexico, and across the southwest to California. Evergreen oak species are also common in parts of southern Europe and south Asia, and are included in this list for the sake of completeness. These species, although not having "live" in their common names in their countries of origin, are colloquially called live oaks when cultivated in North America. When the term live oak is used in a specific rathe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Virginiana
''Quercus virginiana'', also known as the southern live oak, is an evergreen oak tree endemic to the Southeastern United States. Though many other species are loosely called live oak, the southern live oak is particularly iconic of the Old South. Many very large and old specimens of live oak can be found today in the Deep South region of the United States. Description Although live oaks retain their leaves nearly year-round, they are not true evergreens. Live oaks drop their leaves immediately before new leaves emerge in the spring. Occasionally, Senescence, senescing leaves may turn yellow or contain brown spots in the winter, leading to the mistaken belief that the tree has oak wilt, whose symptoms typically occur in the summer. A live oak's defoliation may occur sooner in marginal climates or in dry or cold winters. The Bark (botany), bark is dark, thick, and furrowed longitudinally. The leaves are stiff and leathery, with the tops shiny dark green and the bottoms pale gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Sagraeana
''Quercus sagraeana'', the Cuban oak, is a medium-sized evergreen tree native to western Cuba in the Cuban pine forests ecoregion. It is the only oak native to the Caribbean. Nomenclature The Cuban oak was first described by Nuttall (1842) as ''Quercus sagraeana'' based on the specimen collected by Ramón de la Sagra. Using the same specimen, but apparently unaware of the original name, Richard (1853) named the Cuban oak ''Q. cubana''. Trelease (1924) did not view ''Q. sagraeana'' as a species in its own right but as a variety of '' Q. virginiana''. He proposed the name ''Q. virginiana'' var. ''sagraeana''. Muller (1961) renamed it ''Q. oleoides'' var. ''sagraeana'', hypothesizing that the Cuban oak population was a subspecies of '' Q. oleoides'', originating from the Yucatán region of Mexico, but with introgression from '' Q. geminata'' coming from Florida. He considered the morphologically variable Cuban population a hybrid swarm that h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Oleoides
''Quercus oleoides'', with Spanish common names encina or encino, is a Mesoamerican species of oak in the live oak group (''Quercus'' sect. ''Virentes''). It grows in dry forests and pastureland of eastern and southern Mexico and much of Central America, from Guanacaste Province in Costa Rica north as far as the State of Tamaulipas in northeastern Mexico. ''Quercus oleoides'' is a slow-growing tree, reaching in height. Its pale gray leaves are evergreen, thick, hard, long, wide, oblong or elliptic. It flowers from December through May, with male catkin A catkin or ament is a slim, cylindrical flower cluster (a spike), with inconspicuous or no petals, usually wind-pollinated (anemophilous) but sometimes insect-pollinated (as in ''Salix''). They contain many, usually unisexual flowers, arranged cl ...s that are long, and female catkins that are long, containing one to six flowers, each about 7 mm long. Its wood is extremely heavy with intercrossed grains; the sapwood i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Minima
''Quercus minima'', the dwarf live oak or minimal oak, is a North American species of shrubs in the beech family. It is native to the southeastern United States. ''Quercus minima'' is an evergreen or semi-evergreen shrub rarely more than tall, reproducing by seed and also by means of underground rhizomes. It commonly forms extensive cloned colonies with many stems, many of them unbranched. The leaves are alternate, up to long, and toothless or with irregular teeth or lobes. The lobes, when present, are usually spine-tipped. The leaves are retained through the winter, dropping just before or as new growth resumes in late winter or early spring. ''Quercus minima'' is native to the coastal plain of the southeastern United States, primarily in Florida but extending from there to the Carolinas and eastern Louisiana. There are reports of the species also growing in Texas, but these populations appear to belong to other taxa. References {{Taxonbar, from=Q3827372 minima In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Geminata
''Quercus geminata'', commonly called sand live oak, is an evergreen oak tree native to the coastal regions of the subtropical southeastern United States, along the Atlantic Coast from southern Florida northward to southeastern Virginia and along the Gulf Coast westward to southern Mississippi, "FloriData — Quercus geminata", Retrieved 2011-07-06 on seacoast Dune, dunes and on white sands in evergreen oak scrubs. A small- to medium-sized tree, the sand live oak is scrubby and forms thickets. The bark is dark, thick, furrowed, and roughly ridged. The leaves are thick, leathery, and coarsely veined, with extremely revolute margins, giving them the appearance of inverted shallow bowls; their tops dark green, their bottoms dull gray a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Fusiformis
''Quercus fusiformis'' (also often referred to as ''Q. virginiana'' var. ''fusiformis''), commonly known as escarpment live oak, plateau live oak, plateau oak, or Texas live oak, is an evergreen or nearly evergreen tree. Its native range includes the Quartz Mountains and Wichita Mountains in southwestern Oklahoma, through Texas, to the Mexican states of Coahuila, Tamaulipas, and Nuevo León. ''Quercus fusiformis'' is an evergreen tree in the white oak section of the genus ''Quercus''. It is distinguished from ''Quercus virginiana'' (southern live oak) most easily by the acorns, which are slightly larger and with a more pointed apex. It is also a smaller tree, not exceeding in trunk diametercompared to 2.5 m (75 in) in diameter in southern live oakwith more erect branching and a less wide crown. Like ''Q. virginiana'', its magnificent, stately form and unparalleled longevity has endeared it to generations of residents throughout its native range. Its low hanging branches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Brandegeei
''Quercus brandegeei'' is a rare Mexican species of plant in the beech family, Fagaceae, in the oak genus ''Quercus'', series '' Virentes''. It has been found only in the southern part of the State of Baja California Sur in northwestern Mexico. ''Quercus brandegeei'' is an evergreen tree up to tall. Leaves are elliptical, not lobed, the blades up to long and tapering at both ends, sometimes with no teeth on the edge but sometimes with a few pointed teeth. Its habitat is restricted to stream-side locations. The species is listed as endangered by the IUCN Red List and threatened by long-term climatic drying and habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References External link The mystery of Mexico's vanishing stream oaks BBC Future brandegeei Endem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyletic
In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic groups are typically characterised by shared derived characteristics ( synapomorphies), which distinguish organisms in the clade from other organisms. An equivalent term is holophyly. The word "mono-phyly" means "one-tribe" in Greek. Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic group'' consists of all of the descendants of a common ancestor minus one or more monophyletic groups. A '' polyphyletic group'' is characterized by convergent features or habits of scientific interest (for example, night-active primates, fruit trees, aquatic insects). The features by which a polyphyletic group is differentiated from others are not inherited from a common ancestor. These definitions have tak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Ecology
Molecular ecology is a field of evolutionary biology that is concerned with applying molecular population genetics, molecular phylogenetics, and more recently genomics to traditional ecological questions (e.g., species diagnosis, conservation and assessment of biodiversity, species-area relationships, and many questions in behavioral ecology). It is virtually synonymous with the field of "Ecological Genetics" as pioneered by Theodosius Dobzhansky, E. B. Ford, Godfrey M. Hewitt, and others. These fields are united in their attempt to study genetic-based questions "out in the field" as opposed to the laboratory. Molecular ecology is related to the field of conservation genetics. Methods frequently include using microsatellites to determine gene flow and hybridization between populations. The development of molecular ecology is also closely related to the use of DNA microarrays, which allows for the simultaneous analysis of the expression of thousands of different genes. Quanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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