Beech is a genus of deciduous trees in the family Fagaceae, native to temperate Europe and North America. Recent classification systems of the genus recognize 10 to 13 species in two distinct subgenera and Fagus; the Engleriana subgenus is found only in East Asia, is notably distinct from the Fagus subgenus in that these beeches are low-branching trees made up of several major trunks with yellowish bark. Further differentiating characteristics include the whitish bloom on the underside of the leaves, the visible tertiary leaf veins, a long, smooth cupule-peduncle. Fagus japonica, Fagus engleriana, the species F. okamotoi, proposed by the botanist Chung-Fu Shen in 1992, comprise this subgenus. The better known Fagus subgenus beeches are high-branching with tall, stout trunks and smooth silver-grey bark; this group includes Fagus sylvatica, Fagus grandifolia, Fagus crenata, Fagus lucida, Fagus longipetiolata, Fagus hayatae. The classification of the European beech, Fagus sylvatica is complex, with a variety of different names proposed for different species and subspecies within this region.
Research suggests that beeches in Eurasia differentiated late in evolutionary history, during the Miocene. The populations in this area represent a range of overlapping morphotypes, though genetic analysis does not support separate species. Within its family, the Fagaceae, recent research has suggested that Fagus is the evolutionarily most basal group; the southern beeches thought related to beeches, are now treated as members of a separate family, the Nothofagaceae. They are found in Australia, New Zealand, New Guinea, New Caledonia and Chile; the European beech is the most cultivated, although few important differences are seen between species aside from detail elements such as leaf shape. The leaves of beech trees are entire or sparsely toothed, from 5 -- 4 -- 10 cm broad. Beeches are monoecious; the small flowers are unisexual, the female flowers borne in pairs, the male flowers wind-pollinating catkins. They are produced in spring; the bark is light grey. The fruit is a small three–angled nut 10–15 mm long, borne singly or in pairs in soft-spined husks 1.5–2.5 cm long, known as cupules.
The husk can have a variety of spine- to scale-like appendages, the character of which is, in addition to leaf shape, one of the primary ways beeches are differentiated. The nuts are edible, though bitter with a high tannin content, are called beechnuts or beechmast; the name of the tree is of Indo-European origin, played an important role in early debates on the geographical origins of the Indo-European people. Greek φηγός is from the same root, but the word was transferred to the oak tree as a result of the absence of beech trees in Greece. Beech grows on a wide range of soil types, provided they are not waterlogged; the tree canopy casts dense shade, carpets the ground thickly with leaf litter. In North America, they form beech-maple climax forests by partnering with the sugar maple; the beech blight aphid is a common pest of American beech trees. Beeches are used as food plants by some species of Lepidoptera. Beech bark is thin and scars easily. Since the beech tree has such delicate bark, such as lovers' initials and other forms of graffiti, remain because the tree is unable to heal itself.
Beech bark disease is a fungal infection that attacks the American beech through damage caused by scale insects. Infection can lead to the death of the tree. Fagus sylvatica was a late entrant to Great Britain after the last glaciation, may have been restricted to basic soils in the south of England; some suggest. The beech is classified as a native in the south of England and as a non-native in the north where it is removed from'native' woods. Large areas of the Chilterns are covered with beech woods, which are habitat to the common bluebell and other flora; the Cwm Clydach National Nature Reserve in southeast Wales was designated for its beech woodlands, which are believed to be on the western edge of their natural range in this steep limestone gorge. Beech is not native to Ireland; the Friends of the Irish Environment say that the best policy is to remove young regenerating beech, while retaining veteran specimens with biodiversity value. A campaign by Friends of the Rusland Beeches and South Lakeland Friends of the Earth launched in 2007 to reclassify the beech as native in Cumbria.
The campaign is backed by Tim Farron, MP, who tabled a motion on 3 December 2007 regarding the status of beech in Cumbria. Today, beech is planted for hedging and in deciduous woodlands, mature, regenerating stands occur throughout mainland Britain below about 650 m; the tallest and longest hedge in the world is the Meikleour Beech Hedge in Meikleour and Kinross, Scotland. The common European beech grows in Denmark and southern Norway and Sweden up to about the 57–59°N; the most northern known growing beech trees are found in a few small forests around the city of Bergen on th
Cypress is a common name for various coniferous trees or shrubs of northern temperate regions that belong to the family Cupressaceae. The word cypress is derived from Old French cipres, imported from Latin cypressus, the latinisation of the Greek κυπάρισσος. Species that are known as cypresses include: The Cupressaceae family contains 13–16 other genera that do not bear cypress in their common names. Plants named cypress Cypress forest Pine-cypress forest The Cypress. A poem by Letitia Elizabeth Landon from The Amulet, 1826
An oak is a tree or shrub in the genus Quercus of the beech family, Fagaceae. There are 600 extant species of oaks; the common name "oak" appears in the names of species in related genera, notably Lithocarpus, as well as in those of unrelated species such as Grevillea robusta and the Casuarinaceae. The genus Quercus is native to the Northern Hemisphere, includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia and North Africa. North America contains the largest number of oak species, with 90 occurring in the United States, while Mexico has 160 species of which 109 are endemic; the second greatest center of oak diversity is China, which contains 100 species. Oaks have spirally arranged leaves, with lobate margins in many species. Many deciduous species are marcescent. In spring, a single oak tree produces small female flowers; the fruit is a nut called an oak nut borne in a cup-like structure known as a cupule. The acorns and leaves contain tannic acid, which helps to guard from insects.
The live oaks are distinguished for being evergreen, but are not a distinct group and instead are dispersed across the genus. The oak tree is a flowering plant. Oaks may be divided into two genera and a number of sections: The genus Quercus is divided into the following sections: Sect. Quercus, the white oaks of Europe and North America. Styles are short; the leaves lack a bristle on their lobe tips, which are rounded. The type species is Quercus robur. Sect. Mesobalanus, Hungarian oak and its relatives of Europe and Asia. Styles long; the section Mesobalanus is related to section Quercus and sometimes included in it. Sect. Cerris, the Turkey oak and its relatives of Europe and Asia. Styles long; the inside of the acorn's shell is hairless. Its leaves have sharp lobe tips, with bristles at the lobe tip. Sect. Protobalanus, the canyon live oak and its relatives, in southwest United States and northwest Mexico. Styles short, acorns mature in 18 months and taste bitter; the inside of the acorn shell appears woolly.
Leaves have sharp lobe tips, with bristles at the lobe tip. Sect. Lobatae, the red oaks of North America, Central America and northern South America. Styles long; the inside of the acorn shell appears woolly. The actual nut is encased in a thin, papery skin. Leaves have sharp lobe tips, with spiny bristles at the lobe; the ring-cupped oaks of eastern and southeastern Asia. Evergreen trees growing 10–40 m tall, they are distinct from subgenus Quercus in that they have acorns with distinctive cups bearing concrescent rings of scales. IUCN, ITIS, Encyclopedia of Life and Flora of China treats Cyclobalanopsis as a distinct genus, but some taxonomists consider it a subgenus of Quercus, it contains about 150 species. Species of Cyclobalanopsis are common in the evergreen subtropical laurel forests which extend from southern Japan, southern Korea, Taiwan across southern China and northern Indochina to the eastern Himalayas, in association with trees of genus Castanopsis and the laurel family. Interspecific hybridization is quite common among oaks but between species within the same section only and most common in the white oak group.
Inter-section hybrids, except between species of sections Mesobalanus, are unknown. Recent systematic studies appear to confirm a high tendency of Quercus species to hybridize because of a combination of factors. White oaks are unable to discriminate against pollination by other species in the same section; because they are wind pollinated and they have weak internal barriers to hybridization, hybridization produces functional seeds and fertile hybrid offspring. Ecological stresses near habitat margins, can cause a breakdown of mate recognition as well as a reduction of male function in one parent species. Frequent hybridization among oaks has consequences for oak populations around the world. Frequent hybridization and high levels of introgression have caused different species in the same populations to share up to 50% of their genetic information. Having high rates of hybridization and introgression produces genetic data that does not differentiate between two morphologically distinct species, but instead differentiates populations.
Numerous hypotheses have been proposed to explain how oak species are able to remain morphologically and ecologically distinct with such high levels of gene flow, but the phenomenon is still a mystery to botanists. The Fagaceae, or beech family, to which the oaks belong, is a slow evolving clade compared to other angiosperms, the patterns of hybridization and introgression in Quercus pose a gre
Taxodium distichum is a deciduous conifer in the family Cupressaceae. It is native to the southeastern United States. Hardy and tough, this tree adapts to swampy, it is noted for the russet-red fall color of its lacy needles. This plant has some cultivated varieties and is used in groupings in public spaces. Common names include bald cypress, swamp cypress, white cypress, tidewater red cypress, gulf cypress and red cypress. Taxodium distichum is a large, slow-growing, long-lived tree, it grows to heights of 35–120 feet and has a trunk diameter of 3–6 feet. The main trunk is surrounded by cypress knees; the bark is grayish brown to reddish brown and fibrous with a stringy texture. The needle-like leaves are 1⁄2 to 3⁄4 inch long and are simple, alternate and linear, with entire margins. In autumn, the leaves turn yellow or copper red; the bald cypress drops its needles each winter and grows a new set in spring. This species is monoecious, with male and female flowers on a single plant forming on slender, tassel-like structures near the edge of branchlets.
The tree flowers in April and the seeds ripen in October. The male and female strobili are produced from buds formed in late autumn, with pollination in early winter, mature in about 12 months. Male cones emerge on panicles. Female cones are round and green while young, they turn hard and brown as the tree matures. They are 2.0 -- 3.5 cm in diameter. They have from 20 to 30 spirally arranged, four-sided scales, each bearing one, two, or three triangular seeds; each cone contains 20 to 40 large seeds. The cones disintegrate at maturity to release the seeds; the seeds are 5–10 mm long, the largest of any species of Cupressaceae, are produced every year, with heavy crops every 3–5 years. The seedlings have three to nine, but six, cotyledons each; the bald cypress grows in full sunlight to partial shade. This species can tolerate dry soil, it is moderately able to grow in aerosols of salt water. The cones are consumed by wildlife; this tree is suitable for cultivation in light and heavy soils. It does well in acid and alkaline soils and can grow in alkaline and saline soils.
It can grow in no shade. It can grow in water, it can tolerate atmospheric pollution. The tallest known specimen, near Williamsburg, Virginia, is 44.11 m tall, the stoutest known, in the Real County near Leaky, has a diameter at breast height of 475 in. The oldest known living specimen, in Bladen County, North Carolina, is over 1,620 years old, rendering it one of the oldest living plants in North America. Although there are specimens estimated to be nearly 2,000 years old at Sky Lake in Humphreys County, Mississippi determining their age is difficult because older trees become hollow; the related Taxodium ascendens is treated by some botanists as a distinct species, while others classify it as a variety of bald cypress, as Taxodium distichum var. imbricatum Croom. It differs in shorter leaves borne on erect shoots, in ecology, being confined to low-nutrient blackwater habitats. A few authors treat Taxodium mucronatum as a variety of bald cypress, as T. distichum var. mexicanum Gordon, thereby considering the genus as comprising only one species.
The native range extends from southeastern New Jersey south to Florida and west to East Texas and southeastern Oklahoma, inland up the Mississippi River. Ancient bald cypress forests, with some trees more than 1,700 years old, once dominated swamps in the Southeast; the range had been believed to extended north only as far as Delaware, but researchers have now found a natural forest on the Cape May Peninsula in southern New Jersey. The species can be found growing outside its natural native range; the largest remaining old-growth stands are at Corkscrew Swamp Sanctuary, near Naples, in the Three Sisters tract along eastern North Carolina's Black River. The Corkscrew trees are around 500 years of age, some exceed 40 m in height; the Black River trees were cored by dendrochronologist David Stahle from the University of Arkansas. He found that some began growing as early as 364 AD; this species is native to humid climates where annual precipitation ranges from about 760 mm or 30 inches in Texas to 1,630 mm or 64 inches along the Gulf Coast.
Although it grows best in warm climates, the natural northern limit of the species is not due to a lack of cold tolerance, but to specific reproductive requirements: further north, regeneration is prevented by ice damage to seedlings. Larger trees are able to tolerate lower humidity. In 2012 scuba divers discovered an underwater cypress forest several miles off the coast of Mobile, Alabama, in 60 feet of water; the forest contains trees that could not be dated with radiocarbon methods, indicating that they are more than 50,000 years old and thus most lived in the early glacial interval of the last ice age. The cypress forest is well preserved, when samples are cut they still smell like fresh cypress. A team, which has not yet published its results in a peer-reviewed journal, is studying the site. One possibility is that hurricane Katrina exposed the grove of bald cypress, protected under ocean floor sediments; the bald cypress is monoecious. Male and female strobili mature in one growing season from buds formed t
Alnus cordata is a tree or shrub species belonging to the family of Betulaceae and native to southern Apennine Mountains and north-eastern mountains of Corsica. It has been introduced in Sicily and Sardinia and more in Central-North Italy, other European countries and extra-European countries, where it has become naturalised, it is a medium-sized tree growing up with a trunk up to 70 -- 100 cm diameter. The leaves are deciduous but with a long season in leaf, from April to December in the Northern Hemisphere; the slender cylindrical male catkins are reddish and up to 10 cm long. The female catkins are ovoid, when mature in autumn 2–3 cm long and 1.5–2 cm broad, dark green to brown, hard and superficially similar to some conifer cones. The small winged seeds disperse through the winter, leaving the old woody, blackish'cones' on the tree for up to a year after. Alnus cordata has gained The Royal Horticultural Society's Award of Garden Merit. Like other alders, it is able to improve soil fertility through symbiotic nitrogen fixation with the bacteria Actinomyces alni.
It thrives on much drier soils than most other alders, grows even under unfavourable circumstances, which renders it valuable for landscape planting on difficult sites such as mining spoil heaps and compacted urban sites. It is grown as a windbreak; the tree produces valuable reddish-orange wood. It breaks down when exposed to air, but is durable when immersed in water; the timber is used for turning and carving, for moulding, furniture and plywood. The Italian Alder makes a medium to large bonsai, a quick grower it responds well to pruning with branches ramifying well and leaf size reducing quite rapidly. Alnus cordata - distribution map, genetic conservation units and related resources. European Forest Genetic Resources Programme
France the French Republic, is a country whose territory consists of metropolitan France in Western Europe and several overseas regions and territories. The metropolitan area of France extends from the Mediterranean Sea to the English Channel and the North Sea, from the Rhine to the Atlantic Ocean, it is bordered by Belgium and Germany to the northeast and Italy to the east, Andorra and Spain to the south. The overseas territories include French Guiana in South America and several islands in the Atlantic and Indian oceans; the country's 18 integral regions span a combined area of 643,801 square kilometres and a total population of 67.3 million. France, a sovereign state, is a unitary semi-presidential republic with its capital in Paris, the country's largest city and main cultural and commercial centre. Other major urban areas include Lyon, Toulouse, Bordeaux and Nice. During the Iron Age, what is now metropolitan France was inhabited by a Celtic people. Rome annexed the area in 51 BC, holding it until the arrival of Germanic Franks in 476, who formed the Kingdom of Francia.
The Treaty of Verdun of 843 partitioned Francia into Middle Francia and West Francia. West Francia which became the Kingdom of France in 987 emerged as a major European power in the Late Middle Ages following its victory in the Hundred Years' War. During the Renaissance, French culture flourished and a global colonial empire was established, which by the 20th century would become the second largest in the world; the 16th century was dominated by religious civil wars between Protestants. France became Europe's dominant cultural and military power in the 17th century under Louis XIV. In the late 18th century, the French Revolution overthrew the absolute monarchy, established one of modern history's earliest republics, saw the drafting of the Declaration of the Rights of Man and of the Citizen, which expresses the nation's ideals to this day. In the 19th century, Napoleon established the First French Empire, his subsequent Napoleonic Wars shaped the course of continental Europe. Following the collapse of the Empire, France endured a tumultuous succession of governments culminating with the establishment of the French Third Republic in 1870.
France was a major participant in World War I, from which it emerged victorious, was one of the Allies in World War II, but came under occupation by the Axis powers in 1940. Following liberation in 1944, a Fourth Republic was established and dissolved in the course of the Algerian War; the Fifth Republic, led by Charles de Gaulle, remains today. Algeria and nearly all the other colonies became independent in the 1960s and retained close economic and military connections with France. France has long been a global centre of art and philosophy, it hosts the world's fourth-largest number of UNESCO World Heritage Sites and is the leading tourist destination, receiving around 83 million foreign visitors annually. France is a developed country with the world's sixth-largest economy by nominal GDP, tenth-largest by purchasing power parity. In terms of aggregate household wealth, it ranks fourth in the world. France performs well in international rankings of education, health care, life expectancy, human development.
France is considered a great power in global affairs, being one of the five permanent members of the United Nations Security Council with the power to veto and an official nuclear-weapon state. It is a leading member state of the European Union and the Eurozone, a member of the Group of 7, North Atlantic Treaty Organization, Organisation for Economic Co-operation and Development, the World Trade Organization, La Francophonie. Applied to the whole Frankish Empire, the name "France" comes from the Latin "Francia", or "country of the Franks". Modern France is still named today "Francia" in Italian and Spanish, "Frankreich" in German and "Frankrijk" in Dutch, all of which have more or less the same historical meaning. There are various theories as to the origin of the name Frank. Following the precedents of Edward Gibbon and Jacob Grimm, the name of the Franks has been linked with the word frank in English, it has been suggested that the meaning of "free" was adopted because, after the conquest of Gaul, only Franks were free of taxation.
Another theory is that it is derived from the Proto-Germanic word frankon, which translates as javelin or lance as the throwing axe of the Franks was known as a francisca. However, it has been determined that these weapons were named because of their use by the Franks, not the other way around; the oldest traces of human life in what is now France date from 1.8 million years ago. Over the ensuing millennia, Humans were confronted by a harsh and variable climate, marked by several glacial eras. Early hominids led a nomadic hunter-gatherer life. France has a large number of decorated caves from the upper Palaeolithic era, including one of the most famous and best preserved, Lascaux. At the end of the last glacial period, the climate became milder. After strong demographic and agricultural development between the 4th and 3rd millennia, metallurgy appeared at the end of the 3rd millennium working gold and bronze, iron. France has numerous megalithic sites from the Neolithic period, including the exceptiona
An arboretum in a general sense is a botanical collection composed of trees. More a modern arboretum is a botanical garden containing living collections of woody plants and is intended at least in part for scientific study. An arboretum specializing in growing conifers is known as a pinetum. Other specialist arboreta include saliceta and querceta; the term arboretum was first used in an English publication by John Claudius Loudon in 1833 in The Gardener's Magazine but the concept was long-established by then. Related collections include a viticetum. Egyptian Pharaohs cared for them. Hatshepsut's expedition to Punt returned bearing thirty-one live frankincense trees, the roots of which were kept in baskets for the duration of the voyage, it is reported that Hatshepsut had these trees planted in the courts of her Deir el Bahri mortuary temple complex. Arboreta are special places for the cultivation and display of a wide variety of different kinds of trees and shrubs. Many tree collections have been claimed as the first arboretum, in most cases, the term has been applied retrospectively as it did not come into use until the eighteenth century.
Arboreta differ from pieces of woodland or plantations because they are botanically significant collections with a variety of examples rather than just a few kinds. Of course there are many tree collections that are much older than the eighteenth century in different parts of the world; the most important early proponent of the arboretum in the English-speaking transatlantic world was the prolific landscape gardener and writer, John Claudius Loudon who undertook many gardening commissions and published the Gardener's Magazine, Encyclopaedia of Gardening and other major works. Loudon's Arboretum et Fruticetum Britannicum, 8 vols. is the most significant work on the subject in British history and included an account of all trees and shrubs that were hardy in the British climate, an international history of arboriculture, an assessment of the cultural and industrial value of trees and four volumes of plates. Loudon urged that a national arboretum be created and called for arboreta and other systematic collections to be established in public parks, private gardens, country estates and other places.
He regarded the Derby Arboretum as the most important landscape-gardening commission of the latter part of his career because it demonstrated the benefits of a public arboretum. Commenting on Loddiges' famous Hackney Botanic Garden arboretum, begun in 1816, a commercial nursery that subsequently opened free to the public, for educational benefit, every Sunday, Loudon wrote: "The arboretum looks better this season than it has done since it was planted... The more lofty trees suffered from the late high winds, but not materially. We walked round the two outer spirals of this coil of shrubs. There is no garden scene about London so interesting". A plan of Loddiges' arboretum was included in The Encyclopaedia of 1834 edition. Leaves from Loddiges' arboretum and in some instances entire trees, were studiously drawn to illustrate Loudon's encyclopaedic book Arboretum et Fruticetum Britannicum which incorporated drawings from other early botanic gardens and parklands throughout the United Kingdom. One example of an early European tree collection is the Trsteno Arboretum, near Dubrovnik in Croatia.
The date of its founding is unknown, but it was in existence by 1492, when a 15 m span aqueduct to irrigate the arboretum was constructed. The garden was created by the prominent local Gučetić/Gozze family, it suffered two major disasters in the 1990s but its two unique and ancient Oriental Planes remained standing. Udhagamandalam Arboretum, The Nilgiris, IndiaThe arboretum at Ooty was established in 1992 with an aim of conserving native and indigenous trees, it was established during the year 1992 and maintained by Department of Horticulture with Hill Area Development Programme funds. The micro watershed area leading to Ooty lake where the arboretum is now located, had been neglected and the feeder line feeding water to Ooty was contaminated with urban waste and agricultural chemicals; the area is the natural habitats of both indigenous and migratory birds. During the year 2005-2006, it was rehabilated with funds provided by the Hill Area Development Programme by providing permanent fencing, a footpath, other infrastructure facilities.
Both indigenous and exotic tree species are included. The following tree species were planted: Celtis tetrandra, Dillenia pentagyna, Elaeocarpus ferrugineus, Elaeocarpus oblongus, Evodia lunuankenda, Glochidion neilgherrense, Ligustrum perrotetti, Litsaea ligustrina, Litsaea wightiana, Meliosma arnotiana, Meliosma wightii, Michelia champaca, Michelia nilagirica, Pygeum gardneri, Syzygium amothanum, Syzygium montanum, Alnus nepalensis, Viburnum erubescens, Podocarpus wallichianus, Rhodomyrtus tomentosa, Rapanea wightiana, Ternstroemia japonica, Microtropis microc