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Erodium Maritimum
''Erodium maritimum'', the sea stork's-bill, is a herbaceous perennial plant in the family Geraniaceae. It occurs on free-draining stony soils close to the sea and, very occasionally, in similar situations inland. Most of the world's population occurs in southern Britain and Brittany, but it is found in scattered locations around the coast of Europe as far as Corsica and Italy, and south to the Canary Isles. Description Sea stork's-bill is a perennial Monoecy, monoecious herb which typically grows in rosettes pressed flat to the ground, with a deep tap root that allows it to survive through the summer on dry soils. The leaves are all or mostly basal, but are arranged in opposite pairs if the stem elongates. The leaves are simple, oval in outline, up to 2 cm long, shallowly lobed and quite strongly toothed, with a petiole that can be as long, or longer, than the blade. The surface of the leaf is streaked with long, white, appressed hairs. The Floral symmetry, actinomorphic f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perennial Plant
A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also widely used to distinguish plants with little or no woody growth (secondary growth in girth) from trees and shrubs, which are also technically perennials. Perennialsespecially small flowering plantsthat grow and bloom over the spring and summer, die back every autumn and winter, and then return in the spring from their rootstock or other overwintering structure, are known as herbaceous perennials. However, depending on the rigours of local climate (temperature, moisture, organic content in the soil, microorganisms), a plant that is a perennial in its native habitat, or in a milder garden, may be treated by a gardener as an annual and planted out every year, from seed, from cuttings, or from divisions. Tomato vines, for example, live several y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zembra
Zembra ( aeb, زمبرة ') is a Tunisian island. The island is a rock formation, and as such contains many 400 metre-high cliffs. It has an area of . Located from El Haouaria and from the port of La Goulette, it is a natural extension of the peninsula of Cap Bon. Zembra is a natural fortress that housed a resort until 1976 and then passed into the hands of the Tunisian army. On the southern coast there are remains of an ancient harbour. Zembra is most probably the same as the island called Aegimouros ( grc, Αἰγίμορος) by many ancient writers. Pliny the Elder called both Zembra and Zembretta Aegimuri. Environment Zembra has a fragile ecosystem and has been classified as a protected area by UNESCO since 1977. A rich biological reserve and the presence of rare sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcifugous Grasslands And Montane Communities In The British National Vegetation Classification System
Calcifugous grasslands and montane communities are botanical groupings in the British National Vegetation Classification system. The calcifugous grasslands and montane communities of the NVC were described in Volume 3 of ''British Plant Communities'', first published in 1992, along with the mesotrophic grassland communities and the calcicolous grassland communities. In total, 21 calcifugous grasslands and montane communities have been identified. The calcifugous grasslands and montane communities consist of the following groupings: * five grass-dominated communities which group together as "sub-montane calcifugous grasslands"; two of these, U1 and U2 are found throughout Britain, two more U4 and U5 are found throughout upland areas of Scotland, Wales and northern and western England, and one, U3, is localised in southwest England. * a sixth submontane community, U6, dominated by Heath Rush ''Juncus squarrosus'' * four communities categorised as "calcifugous vegetation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Long Mynd
, photo = , photo_alt = , photo_caption = View down Townbrook Valley toward Burway Hill , country_type = , country = England , subdivision1_type = County , subdivision1 = Shropshire , borders_on = , biome = HeathlandMoorland , topo_map = , topo_maker = , highest = Pole Bank , highest_location = , elevation_m = 516 , elevation_system = , coordinates = , length_km = 11.26 , width_km = 4.8 , area_km2 = 54 , length_orientation= N-S , width_orientation = E-W , length_ref = , width_ref = , area_ref = , parent = , range_coordinates = , range_coordinates_ref= , formed_by = Glaciation , geology = Sandstone , age = Quaternary , orogeny = , map = Shropshire , map_alt = , map_caption = The Long Mynd , map_ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borth
Borth ( cy, Y Borth) is a village and seaside resort in Ceredigion, Mid Wales, 7 miles (11 km) north of Aberystwyth on the Ceredigion Coast Path. The community includes the settlement of Ynyslas. The population was 1,399 in 2011. From being largely Welsh-speaking, the village has become anglicised: over 54 per cent of its residents were born in England. According to both the 1991 and 2001 censuses, 43 per cent of the residents of Borth were primarily Welsh-speakers. Features and history Borth's sandy beach has helped to promote it as a seaside resort. There is a youth hostel in the village, and caravan and camping sites nearby. There is an ancient submerged forest visible at low tide along the beach, where stumps of oak, pine, birch, willow and hazel (preserved by the acid anaerobic conditions in the peat) can be seen. Radiocarbon dating suggests the trees date from about 1500 BCE. This submerged forest also ties in with the legend of Cantre'r Gwaelod. The stumps were e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mwnt
A scanning tunneling microscopy image of a single-walled carbon nanotube Rotating single-walled zigzag carbon nanotube A carbon nanotube (CNT) is a tube made of carbon with diameters typically measured in nanometers. ''Single-wall carbon nanotubes'' (''SWCNTs'') are one of the allotropes of carbon, intermediate between fullerene cages and flat graphene, with diameters in the range of a nanometre. Although not made this way, single-wall carbon nanotubes can be idealized as cutouts from a two-dimensional Hexagonal tiling, hexagonal lattice of carbon atoms rolled up along one of the Bravais lattice vectors of the hexagonal lattice to form a hollow cylinder. In this construction, periodic boundary conditions are imposed over the length of this roll-up vector to yield a helical lattice of seamlessly bonded carbon atoms on the cylinder surface. ''Multi-wall carbon nanotubes'' (''MWCNTs'') consisting of nested single-wall carbon nanotubes weakly bound together by van der Waals in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceredigion
Ceredigion ( , , ) is a county in the west of Wales, corresponding to the historic county of Cardiganshire. During the second half of the first millennium Ceredigion was a minor kingdom. It has been administered as a county since 1282. Ceredigion is considered a centre of Welsh culture and just under half of the population can speak Welsh according to the 2011 Census. The county is mainly rural, with over of coastline and a mountainous hinterland. The numerous sandy beaches and the long-distance Ceredigion Coast Path provide views of Cardigan Bay. In the 18th and early 19th centuries, Cardiganshire had more industry than it does today; Cardigan was the commercial centre of the county; lead, silver and zinc were mined and Cardigan was the principal port of South Wales prior to the silting of its harbour. The economy became highly dependent on dairy farming and the rearing of livestock for the English market. During the 20th century, livestock farming became less profitable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axiophyte
An axiophyte (Greek: "worthy plant") is a plant that is of particular interest to botanists, conservationists and ecologists. The significance of axiophytes is from their strong association with habitats considered to be of high merit for conservation. Axiophytes are a relatively recent concept which has its roots in such ideas as "ancient woodland indicator species". According to the BSBI around 40% of plant species can be considered axiophytes. Very rare species are not considered axiophytes; for a species to be a useful indicator of quality habitat it must be relatively frequent in those habitats, but scarce elsewhere. A typical example would be dog's mercury (''Mercurialis perennis''), a plant slow to colonise new sites, but common in ancient woodland and old hedgerows. The number of axiophytes on a site provides a crude, but convenient, measure of its nature conservation importance. It is a particularly useful approach when comparing otherwise similar sites. Over time axio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normandy (administrative Region)
Normandy (; french: Normandie, link=no ; nrf, Normaundie; from Old French , plural of , originally from the word for 'northman' in several Scandinavian languages) is the northwesternmost of the eighteen regions of France, roughly coextensive with the historical Duchy of Normandy. Normandy is divided into five administrative departments: Calvados, Eure, Manche, Orne and Seine-Maritime. It covers , comprising roughly 5% of the territory of metropolitan France. Its population of 3,322,757 accounts for around 5% of the population of France. The inhabitants of Normandy are known as Normans, and the region is the historic homeland of the Norman language. The neighboring regions are Hauts-de-France and Ile-de-France to the east, Centre-Val de Loire to the southeast, Pays de la Loire to the south, and Brittany to the southwest. The capital is Rouen. Normandy's name comes from the settlement of the territory by Vikings ("Northmen") from the 9th century, and confirmed by treaty in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been Conservation status, categorized by the International Union for Conservation of Nature as being threatened species, threatened with extinction unless the circumstances that are threatened species, threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity (animal), captivity, an example being the military macaw. There are currently 5196 animals and 6789 plants classified as Vulnerable, compared with 1998 levels of 2815 and 3222, respectively. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pays De La Loire
Pays de la Loire (; ; br, Broioù al Liger) is one of the 18 regions of France, in the west of the mainland. It was created in the 1950s to serve as a zone of influence for its capital, Nantes, one of a handful of "balancing metropolises" (). Geography Pays de la Loire is in western France, bordered by Brittany on the northwest, Normandy on the north, Centre-Val de Loire on the east, Nouvelle-Aquitaine on the south, and the Bay of Biscay of the North Atlantic Ocean on the southwest. Departments and former province Pays de la Loire comprises five departments: Loire-Atlantique, Maine-et-Loire, Mayenne, Sarthe, Vendée. Pays de la Loire is made up of the following historical provinces: * Part of Brittany, with its old capital Nantes contained within the Loire-Atlantique department. This is up to 20% of historical Brittany. The other 80% makes up the currently neighbouring region of Brittany * Anjou: is largely absorbed into the Maine-et-Loire department; the rest in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brittany
Brittany (; french: link=no, Bretagne ; br, Breizh, or ; Gallo language, Gallo: ''Bertaèyn'' ) is a peninsula, Historical region, historical country and cultural area in the west of modern France, covering the western part of what was known as Armorica during the period of Roman occupation. It became an Kingdom of Brittany, independent kingdom and then a Duchy of Brittany, duchy before being Union of Brittany and France, united with the Kingdom of France in 1532 as a provinces of France, province governed as a separate nation under the crown. Brittany has also been referred to as Little Britain (as opposed to Great Britain, with which it shares an etymology). It is bordered by the English Channel to the north, Normandy to the northeast, eastern Pays de la Loire to the southeast, the Bay of Biscay to the south, and the Celtic Sea and the Atlantic Ocean to the west. Its land area is 34,023 km2 . Brittany is the site of some of the world's oldest standing architecture, ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
