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Ulmus 'Escaillard'
The elm cultivar ''Ulmus'' 'Escaillard' was first described by Dumont de Courset in 1811, and listed, without description, as ''Ulmus escaillard'', by the André Leroy nursery at Angers, France, in 1849. It was distributed by the Baudriller nursery of Angers and by Hesse's nursery, Weener, Germany, as ''U. campestris'' 'Escaillardii', both nurseries using ''U. montana'' for wych elm cultivars. Herbarium specimens from a tree in The Hague obtained from the Hesse nursery label it variously ''U. glabra'' 'Escaillardii' and ''Ulmus'' × ''hollandica'' 'Escaillardi'. The latter was Christine Buisman Christine Johanna Buisman (; 22 March 1900 – 27 March 1936) was a Dutch phytopathologist who dedicated her short career to the research of Dutch elm disease and the selection of resistant elm seedlings. In 1927, Buisman provided the final pro ...'s determination (1931), identifiable as hers by its handwriting and red label. Description 'Escaillard' was a small-leaved elm. Sheet lab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultivar
A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, micropropagation, tissue culture, or carefully controlled seed production. Most cultivars arise from deliberate human genetic engineering, manipulation, but some originate from wild plants that have distinctive characteristics. Cultivar names are chosen according to rules of the International Code of Nomenclature for Cultivated Plants (ICNCP), and not all cultivated plants qualify as cultivars. Horticulturists generally believe the word ''cultivar''''Cultivar'' () has two meanings, as explained in ''#Formal definition, Formal definition'': it is a classification category and a taxonomic unit within the category. When referring to a taxon, the word does not apply to an individual plant but to all plants t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges Louis Marie Dumont De Courset
Georges Louis Marie Dumont de Courset (16 September 1746 – 3 September 1824) was a French botanist and agronomist. Born near Boulogne, he studied in Paris and showed an aptitude for music and drawing. He joined the military when he was 17 and became a second lieutenant. Sent to the south of France, he visited the Pyrenees and caught a passion for botany. He gave up his military career and returned home to build an extensive garden that became famous for the diversity of plant species. The garden was a noteworthy example of cultivation without a natural water spring source He tried to influence the agricultural techniques employed in his area. Protected by scientists like André Thouin André Thouin (10 February 1747 – 24 October 1824) was a French botanist. Thouin studied botany under Bernard de Jussieu, and in 1793 attained the chair of horticulture at the Muséum national d'histoire naturelle in Paris. He was a good ... (1746–1824) during the Revolution, he bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angers
Angers (, , ;) is a city in western France, about southwest of Paris. It is the Prefectures of France, prefecture of the Maine-et-Loire department and was the capital of the province of Duchy of Anjou, Anjou until the French Revolution. The inhabitants of both the city and the province are called ''Angevins'' or, more rarely, ''Angeriens''. Angers proper covers and has a population of 154,508 inhabitants, while around 432,900 live in its metropolitan area (''aire d'attraction''). The Communauté urbaine Angers Loire Métropole, Angers Loire Métropole is made up of 29 communes covering with 299,500 inhabitants (2018).Comparateur de territoire INSEE Not including the broader metropolitan area, Angers is the third most populous Communes of France, commune in northwes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnold Arboretum
The Arnold Arboretum is a botanical research institution and free public park affiliated with Harvard University and located in the Jamaica Plain and Roslindale, Massachusetts, Roslindale neighborhoods of Boston. Established in 1872, it is the oldest public arboretum in North America. The landscape was designed by Charles Sprague Sargent and Frederick Law Olmsted and is the second largest "link" in the Emerald Necklace. The Arnold Arboretum's collection of temperate trees, shrubs, and vines has an emphasis on the plants of the eastern North America and eastern Asia, where Arboretum staff and colleagues are sourcing new material on plant collecting expeditions. The Arboretum supports research in its landscape and in its Weld Hill Research Building. History The Arboretum was founded in 1872. It was established through land and financial gifts from Benjamin Bussey and James Arnold, with trustee George Barrell Emerson facilitating its creation. Harvard appointed Charles Sprague Sar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard University
Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyman John Harvard (clergyman), John Harvard, it is the oldest institution of higher learning in the United States. Its influence, wealth, and rankings have made it one of the most prestigious universities in the world. Harvard was founded and authorized by the Massachusetts General Court, the governing legislature of Colonial history of the United States, colonial-era Massachusetts Bay Colony. While never formally affiliated with any Religious denomination, denomination, Harvard trained Congregationalism in the United States, Congregational clergy until its curriculum and student body were gradually secularized in the 18th century. By the 19th century, Harvard emerged as the most prominent academic and cultural institution among the Boston B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weener
Weener () is a town in the district of Leer (district), Leer, in Lower Saxony, Germany. It is situated near the border with the Netherlands, on the river Ems (river), Ems. The towns population is at 15,654, making it the largest town of the region Rheiderland. It has a railway and autobahn connection to Groningen, Netherlands, Emden and Bremen. The city was first mentioned in a monastery's records in 951. Town Division of the town The town of Weener consists of 9 districts: * Weener * Kirchborgum * Diele * Vellage / Halte * Stapelmoor * Holthusen * Weenermoor / Möhlenwarf * St. Georgiwold * Beschotenweg Neighbouring communities In the district of Leer (district), Leer: * Bunde, Germany, Bunde * Leer, Lower Saxony, Leer * Jemgum * Westoverledingen In the district of Emsland (district), Emsland: * Papenburg * Rhede Politics Mayor *2006–2014: Wilhelm Dreesmann *2014–2021: Ludwig Sonnenberg *2021–incumbent: Heiko Abbas Town Council The composition of the town council for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Hague
The Hague ( ) is the capital city of the South Holland province of the Netherlands. With a population of over half a million, it is the third-largest city in the Netherlands. Situated on the west coast facing the North Sea, The Hague is the country's administrative centre and its seat of government, and has been described as the country's ''de facto'' capital since the time of the Dutch Republic, while Amsterdam is the official capital of the Netherlands. The Hague is the core municipality of the COROP, Greater The Hague urban area containing over 800,000 residents, and is also part of the Rotterdam–The Hague metropolitan area, which, with a population of approximately 2.6 million, is the largest metropolitan area of the Netherlands. The city is also part of the Randstad region, one of the largest conurbations in Europe. The Hague is the seat of the Cabinet of the Netherlands, Cabinet, the States General of the Netherlands, States General, the Supreme Court of the Neth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus × Hollandica
''Ulmus'' × ''hollandica'' Mill. , often known simply as Dutch elm, is a natural hybrid between wych elm (''U. glabra'') and field elm (''U. minor'') which commonly occurs across Europe wherever the ranges of the parent species overlap. In England, according to the field-studies of R. H. Richens, "The largest area f hybridizationis a band extending across Essex from the Hertfordshire border to southern Suffolk. The next largest is in northern Bedfordshire and adjoining parts of Northamptonshire. Comparable zones occur in Picardy and Cotentin in northern France". Crosses between ''U.'' × ''hollandica'' and either of the parent species are also classified as ''U.'' × ''hollandica''. ''Ulmus'' × ''hollandica'' hybrids, natural and artificial, have been widely planted elsewhere.Bean, W. J. (1981). ''Trees and shrubs hardy in Great Britain'', 7th edition. Murray, LondonElwes, H. J. & Henry, A. (1913). ''The Trees of Great Britain & Ireland.'' Vol. VII. 1848–1929. Private pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christine Buisman
Christine Johanna Buisman (; 22 March 1900 – 27 March 1936) was a Dutch phytopathologist who dedicated her short career to the research of Dutch elm disease and the selection of resistant elm seedlings. In 1927, Buisman provided the final proof that ''Graphium ulmi'' (later named '' Ophiostoma ulmi'') was the causal agent of the disease, concluding the controversy which had raged among Dutch and German scientists since 1922. Buisman developed the inoculation method for screening large numbers of elm plants for resistance, and in 1932 discovered the generative form of the fungus, ''Ceratostomella ulmi''. The first ever resistant elm clone released in the Netherlands was named for her in 1937, following her untimely death the previous year.Heybroek, H. M. and Nijboer, R. (2013). ''Christine Johanna Buisman in Italy''. p. 4–6. Private publication, Netherlands. Biography Buisman was the eldest of four children raised in a liberal and socially conscious family in Leeuwarden. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus Articles Missing Images
Elms are deciduous and semi-deciduous trees comprising the genus ''Ulmus'' in the family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical- montane regions of North America and Eurasia, presently ranging southward in the Middle East to Lebanon and Israel,Flora of Israel OnlineUlmus minor Mill. , Flora of Israel Online accessdate: July 28, 2020 and across the Equator in the Far East into Indonesia.Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China'', Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, US. Elms are components of many kinds of natural forests. Moreover, during the 19th and early 20th centuries, many species and cultivars were also planted as ornamental street, garden, and park trees in Europe, North America, and parts of the Southern Hemisphere, notably Australasia. Some individual elms reached great size ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
