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Ulmus 'Nanguen' = Lutece
''Ulmus'' 'Nanguen' (selling name ) is a complex fourth generation Dutch hybrid cultivar raised at the Dorschkamp Research Institute for Forestry & Landscape Planning, Wageningen. was derived from the cross 'Plantyn' × ( 'Bea Schwarz' selfed), an ancestry comprising four field elms (''U. minor''), a wych elm (''U. glabra''), the curious Exeter Elm ('Exoniensis'), and a frost-resistant selection of the Himalayan elm (''U. wallichiana''). Butterfly Conservation (2023). ''Disease-resistant elm cultivars' Butterfly Conservation, Lulworth, England. Originally identified as clone 812, was not promoted by the Dutch owing to unfounded fears that it may prove susceptible to coral spot fungus (''Nectria cinnabarina''). Instead, 812 was acquired by the French Institut National de la Recherche Agronomique (INRA), which subjected the tree to 20 years of field trials in the Bois de Vincennes, Paris, before patenting and release in 2002 as 'Nanguen' = . has been deemed the modern c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus 'Plantyn'
''Ulmus'' 'Plantyn' (Anglicized form of 'Plantijn') was one of three Dutch hybrid elms released by the Dorschkamp Research Institute for Forestry & Landscape Planning, Wageningen, in 1973. Derived from a crossing of the Dutch hybrids '202' (''U.'' 'Exoniensis' × ''U. wallichiana'') and '302' (''U. minor'' '1' × ''U. minor'' '28'), it was to prove of great significance in later developments.Heybroek, H. M. (1976). ''Nederlands Bosbouw Tijdschrift'' 48: 117–23, 1976. A selfed seedling was to become the first Dutch clone to prove effectively immune to disease, released in 1989 as 'Columella'. 'Plantyn' was also destined to be the female parent of released in 2002.. In Italy, 'Plantyn' was used again as female parent in hybridizations with the Siberian Elm ''Ulmus pumila'' by the Istituto per la Protezione delle Piante (IPP), to create three new cultivars better adapted to the Mediterranean climate (see Hybrid cultivars). Description 'Plantyn' is a fast-growing tree, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dutch Elm Disease
Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Although believed to be originally native to Asia, the disease was accidentally introduced into Americas, America, Europe, and New Zealand. In these regions it has devastated native populations of elms that did not have resistance to the disease. The name "Dutch elm disease" refers to its identification in 1921 and later in the Netherlands by Dutch phytopathologists Marie Beatrice Schol-Schwarz, Bea Schwarz and Christine Buisman, who both worked with professor Johanna Westerdijk. The disease affects species in the genera ''Ulmus'' and ''Zelkova''; therefore it is not specific to the Ulmus × hollandica, Dutch elm hybrid. Overview Dutch elm disease (DED) is caused by ascomycete microfungi. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedfordshire
Bedfordshire (; abbreviated Beds) is a ceremonial county in the East of England. The county has been administered by three unitary authorities, Borough of Bedford, Central Bedfordshire and Borough of Luton, since Bedfordshire County Council was abolished in 2009. Bedfordshire is bordered by Cambridgeshire to the east and north-east, Northamptonshire to the north, Buckinghamshire to the west and Hertfordshire to the south-east and south. It is the fourteenth most densely populated county of England, with over half the population of the county living in the two largest built-up areas: Luton (258,018) and Bedford (106,940). The highest elevation point is on Dunstable Downs in the Chilterns. History The first recorded use of the name in 1011 was "Bedanfordscir," meaning the shire or county of Bedford, which itself means "Beda's ford" (river crossing). Bedfordshire was historically divided into nine hundreds: Barford, Biggleswade, Clifton, Flitt, Manshead, Redbornestoke, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrest Park
Wrest Park is a country estate located in Silsoe, Bedfordshire, England. It comprises Wrest Park, a Grade I listed country house, and Wrest Park Gardens, also Grade I listed, formal gardens surrounding the mansion. History Thomas Carew (1595–1640) wrote his country house poem "To My Friend G.N. from Wrest" in 1639 that described the old house which was demolished between 1834 and 1840. The present house was built in 1834–39, to designs by its owner Thomas de Grey, 2nd Earl de Grey (1781–1859), an amateur architect and the first president of the Royal Institute of British Architects, who was inspired by buildings he had seen on trips to Paris. He based his house on designs published in French architectural books such as Jacques-François Blondel's ''Architecture Française'' (1752). The works were superintended as clerk of works on site by James Clephan, who had been clerk of the works at the Liddell seat, Ravensworth Castle in County Durham, and had recently served as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satyrium W-album
The white-letter hairstreak (''Satyrium w-album'') is a butterfly in the family Lycaenidae. Appearance and behaviour A dark little butterfly that spends the majority of its life in the tree tops, feeding on honeydew, making it best observed through binoculars. The uppersides are a dark brown with a small orange spot in the bottom corner of the hindwing. The male has a small pale spot on the forewings made up of scent scales. The undersides are a lighter brown with a thin white line, the "hairstreak", which gives this group of butterflies their name. On the hindwing this streak zigzags to form a letter W (or M) from which this species gets its name. The outer edge of the hindwing has an orange border, but there is no orange on the forewings as on the similar black hairstreak and there are two short tails, the female's longer than the male's on the hindwings. Part of a group known as "lateral baskers", they always rest with their wings closed, usually at right-angles to the sun du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterfly Conservation
Butterfly Conservation (BC) is a UK-wide nonprofit environmentalist organization and charity dedicated to conserving butterflies, moths, and the environment. The charity uses its research to provide advice on how to conserve and restore butterfly and moth habitats and it runs projects to protect more than 100 threatened species of Lepidoptera. Butterfly Conservation is also involved in conserving hundreds of sites and reserves for butterflies and moths throughout the UK. Butterfly Conservation has more than 37,000 members and 31 volunteer-led Branches throughout the UK, as well as the European Butterflies Group. The organisation's Head Office is based in East Lulworth, Dorset, with additional offices in Scotland, Wales, and Northern Ireland. History The organisation was originally formed in 1968 as the "British Butterfly Conservation Society" by a small group of naturalists and it was registered as a charity on 7 March 1968. Butterfly Conservation is a company limited by guarant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Celsius
The degree Celsius is the unit of temperature on the Celsius scale (originally known as the centigrade scale outside Sweden), one of two temperature scales used in the International System of Units (SI), the other being the Kelvin scale. The degree Celsius (symbol: °C) can refer to a specific temperature on the Celsius scale or a unit to indicate a difference or range between two temperatures. It is named after the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale in 1742. Before being renamed in 1948 to honour Anders Celsius, the unit was called ''centigrade'', from the Latin ''centum'', which means 100, and ''gradus'', which means steps. Most major countries use this scale; the other major scale, Fahrenheit, is still used in the United States, some island territories, and Liberia. The Kelvin scale is of use in the sciences, with representing absolute zero. Since 1743 the Celsius scale has been based on 0 °C for the freezing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain, which lies in the North Atlantic, and includes over 100 smaller islands, such as the Isles of Scilly and the Isle of Wight. The area now called England was first inhabited by modern humans during the Upper Paleolithic period, but takes its name from the Angles, a Germanic tribe deriving its name from the Anglia peninsula, who settled during the 5th and 6th centuries. England became a unified state in the 10th century and has had a significant cultural and legal impact on the wider world since the Age of Discovery, which began during the 15th century. The English language, the Anglican Church, and Engli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nantes
Nantes (, , ; Gallo: or ; ) is a city in Loire-Atlantique on the Loire, from the Atlantic coast. The city is the sixth largest in France, with a population of 314,138 in Nantes proper and a metropolitan area of nearly 1 million inhabitants (2018). With Saint-Nazaire, a seaport on the Loire estuary, Nantes forms one of the main north-western French metropolitan agglomerations. It is the administrative seat of the Loire-Atlantique department and the Pays de la Loire region, one of 18 regions of France. Nantes belongs historically and culturally to Brittany, a former duchy and province, and its omission from the modern administrative region of Brittany is controversial. Nantes was identified during classical antiquity as a port on the Loire. It was the seat of a bishopric at the end of the Roman era before it was conquered by the Bretons in 851. Although Nantes was the primary residence of the 15th-century dukes of Brittany, Rennes became the provincial capital after th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elm Yellows
Elm yellows is a plant disease of elm trees that is spread by leafhoppers or by root grafts."Elm Yellows." Elmcare.Com. 19 Mar. 2008 . Elm yellows, also known as elm phloem necrosis, is very aggressive, with no known cure. Elm yellows occurs in the eastern United States, and southern Ontario in Canada. It is caused by phytoplasmas which infect the phloem (inner bark) of the tree.Price, Terry. "Wilt Diseases." Forestpests.Org. 23 Mar. 2005. 19 Mar. 2008 . Similar phytoplasmas, also known confusingly as 'Elm yellows', also occur in Europe.Conti, M., D'Agostino, G., Mittembergher, L. (1987) A recent epiphytotic of elm yellows in Italy. ''Proceedings of the 7th Congress of the Mediterranean Phytopathological Union'', 208–209. Consejeria de Agricultura y Pesca de la Junta de Andalucia, Granada, Spain Infection and death of the phloem effectively girdles the tree and stops the flow of water and nutrients. The disease affects both wild-growing and cultivated trees. Importance Elms are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus 'Lobel'
''Ulmus'' 'Lobel' is a Dutch hybrid cultivar raised at the Dorschkamp Research Institute for Forestry & Landscape Planning, Wageningen, from a crossing of clone '202' ( 'Exoniensis' × ''U. wallichiana'') with '336' ( 'Bea Schwarz', selfed). 'Lobel' was cloned in 1962 and released for sale in 1973. Description 'Lobel' is a fastigiate, small-crowned, tree not unlike the pyramidal Hornbeam ''Carpinus betulus'' 'Fastigiata'. The typically acuminate leaves are Monthodon, France. No details available *Brighton & Hove City Council, UK. NCCPG Elm Collection. *Grange Farm Arboretumbr> Sutton St. James, Spalding, Lincs., UK. Acc. no. 821. *Royal Botanic Gardens Kew Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,100 ..., UK. Acc. no. 1980.729 * Wijdemeren City Council, Netherlands. Elm col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
