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Ulmus Americana 'Princeton'
The American Elm cultivar ''Ulmus americana'' 'Princeton' was originally selected in 1922 by New Jersey nurseryman William Flemer of Princeton Nurseries for its aesthetic merit. 'Princeton' was later found to have a moderate resistance to Dutch elm disease (DED). Description The tree can grow to greater than 30 m in height, and is distinguished by its dense, symmetrical, upright form and dark green foliage, ultimately forming a broad umbrella crown. Crotch angles can be acute, with considerable bark inclusion which can later lead to branch breakages. The leaves are less than 16 cm long by 8 cm broad. 'Princeton' grows quickly, young trees increasing in height by over 1.6 m per annum (d.b.h. by 2.8 cm p.a.) in an assessment at U C Davis as part of the National Elm Trial.McPherson, G. ''et al''. (2008). National elm trial: Initial report from Northern California. ''Western Arborist'', Fall 2009, 32–36. The tree commences flowering aged nine years. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus Americana 'Delaware'
The American Elm cultivar ''Ulmus americana'' 'Delaware' was originally selected (as tree number 218, a c.1940 seedling from North Dakota) from 35,000 seedlings inoculated with the Dutch elm disease fungus in USDA trials at Morristown, New Jersey. Description The tree has a relatively low stature and "undesirable" branching habit.Townsend, A. M., Bentz, S. E., and Douglass L. W. (2005)Evaluation of 19 American Elm Clones for Tolerance to Dutch Elm Disease ''Journal of Environmental Horticulture'', March 2005, Horticultural Research Institute, Washington, D.C. Pests and diseases Further disease-resistance trials were conducted by both the USDA and the United States National Arboretum which confirmed the clone had a fair level of resistance to Dutch elm disease. 'Delaware' is susceptible to Elm Yellows, but resistant to the Elm Leaf Beetle ''Xanthogaleruca luteola''. Cultivation The original tree, which had been moved to the USDA National Arboretum, Washington, D. C. in 1948, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustine Henry
Augustine Henry (2 July 1857 – 23 March 1930) was a British-born Irish plantsman and sinologist. He is best known for sending over 15,000 dry specimens and seeds and 500 plant samples to Kew Gardens in the United Kingdom. By 1930, he was a recognised authority and was honoured with society membership in Belgium, Czechoslovakia, Finland, France, and Poland. In 1929 the Botanical Institute of Peking dedicated to him the second volume of ''Icones plantarum Sinicarum'', a collection of plant drawings. In 1935, ''John William Besant'' was to write: 'The wealth of beautiful trees and flowering shrubs which adorn gardens in all temperate parts of the world today is due in a great measure to the pioneer work of the late Professor Henry'.Besant, J. W. (1935) 'Plantae Henryanae', ''Gard. Chron.'' 98 (9 November 1935): 334–335. Early life and education Henry was born on 2 July 1857 in Dundee, Scotland to Bernard (a flax merchant) and Mary (née McManee) Henry; the family returned to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York Botanical Gardens
The New York Botanical Garden (NYBG) is a botanical garden at Bronx Park in the Bronx, New York City. Established in 1891, it is located on a site that contains a landscape with over one million living plants; the Enid A. Haupt Conservatory, a greenhouse containing several habitats; and the LuEsther T. Mertz Library, which contains one of the world's largest collections of botany-related texts. , over a million people visit the New York Botanical Garden annually. NYBG is also a major educational institution, teaching visitors about plant science, ecology, and healthful eating through NYBG's interactive programming. Nearly 90,000 of the annual visitors are children from underserved neighboring communities. An additional 3,000 are teachers from New York City's public school system participating in professional development programs that train them to teach science courses at all grade levels. NYBG operates one of the world's largest plant research and conservation programs. NYBG ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penelope Hobhouse
Penelope Hobhouse MBE (born 20 November 1929), née Chichester-Clark, is a British garden writer, designer, lecturer and television presenter. Early life Born into an Anglo-Irish family in Moyola Park, Castledawson, she is the daughter of James Lenox-Conyngham Chichester-Clark and Marion Caroline Dehra Chichester (1904-1976). She is also the sister of Lord Moyola, the Prime Minister of Northern Ireland from 1969 to 1971, and Sir Robin Chichester-Clark.Debrett's entry She was educated at North Foreland Lodge and Girton College, Cambridge, graduating with a BA in economics in 1951. Career Hobhouse walked through Tuscany and taught herself gardening by examples of the Tuscan villa gardens she saw; she went on to be a garden writer and designer, publishing many books on the subject. She started work at Hadspen House, Somerset until leaving in 1979. In 1980 she and her husband Prof John Malins moved into Tintinhull Gardens. The garden's former designer Phyllis Reiss was said ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado State University
Colorado State University (Colorado State or CSU) is a public land-grant research university in Fort Collins, Colorado. It is the flagship university of the Colorado State University System. Colorado State University is classified among "R1: Doctoral Universities – Very high research activity". It was founded in 1870 as Colorado Agricultural College and in 1935 was renamed the Colorado State College of Agriculture and Mechanic Arts. In 1957, the Colorado General Assembly approved its current name, Colorado State University. In 2018, enrollment was approximately 34,166 students, including resident and non-resident instruction students. The university has approximately 2,000 faculty in eight colleges and 55 academic departments. Bachelor's degrees are offered in 65 fields of study, with master's degrees in 55 fields. Colorado State confers doctoral degrees in 40 fields of study, in addition to a professional degree in veterinary medicine. CSU's campus boasts the Engines and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Park Service
The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational properties with various title designations. The U.S. Congress created the agency on August 25, 1916, through the National Park Service Organic Act. It is headquartered in Washington, D.C., within the main headquarters of the Department of the Interior. The NPS employs approximately 20,000 people in 423 individual units covering over 85 million acres in all 50 states, the District of Columbia, and US territories. As of 2019, they had more than 279,000 volunteers. The agency is charged with a dual role of preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment. History Yellowstone National Park was created as the first national par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chatsworth, Georgia
Chatsworth is a city in Murray County, Georgia, United States, specifically in the Dalton, Georgia Dalton metropolitan area, Metropolitan Statistical Area. Its population was 4,874 at the 2020 United States census, 2020 census. The city is the county seat of Murray County and the site of the coldest recorded temperature in Georgia, -17 °F (-27 °C) on January 27, 1940. According to a popular legend, the town received its name after a road sign with the word "Chatsworth" fell off a passing freight train nearby. Someone put the sign on a post, and the name stuck. Just east of Chatsworth are Fort Mountain (Murray County, Georgia), Fort Mountain ,Grassy Mountain, and the Fort Mountain State Park. History Founded in 1905 as a depot on the Louisville and Nashville Railroad. It was incorporated as a town in 1906 and as a city in 1923. In 1915, the seat of Murray County transferred to Chatsworth from Murray County, Georgia#Cities and towns, Spring Place. Geography Chatsworth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington, D
Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on Washington, D.C. * George Washington (1732–1799), the first president of the United States Washington may also refer to: Places England * Washington, Tyne and Wear, a town in the City of Sunderland metropolitan borough ** Washington Old Hall, ancestral home of the family of George Washington * Washington, West Sussex, a village and civil parish Greenland * Cape Washington, Greenland * Washington Land Philippines *New Washington, Aklan, a municipality *Washington, a barangay in Catarman, Northern Samar *Washington, a barangay in Escalante, Negros Occidental *Washington, a barangay in San Jacinto, Masbate *Washington, a barangay in Surigao City United States * Washington, Wisconsin (other) * Fort Washington (other) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White House
The White House is the official residence and workplace of the president of the United States. It is located at 1600 Pennsylvania Avenue NW in Washington, D.C., and has been the residence of every U.S. president since John Adams in 1800. The term "White House" is often used as a metonym for the president and his advisers. The residence was designed by Irish-born architect James Hoban in the neoclassical style. Hoban modelled the building on Leinster House in Dublin, a building which today houses the Oireachtas, the Irish legislature. Construction took place between 1792 and 1800, using Aquia Creek sandstone painted white. When Thomas Jefferson moved into the house in 1801, he (with architect Benjamin Henry Latrobe) added low colonnades on each wing that concealed stables and storage. In 1814, during the War of 1812, the mansion was set ablaze by British forces in the Burning of Washington, destroying the interior and charring much of the exterior. Reconstruction began ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Avenue (Washington, D
Pennsylvania Avenue is a diagonal street in Washington, D.C., and Prince George's County, Maryland, that connects the White House and the United States Capitol and then crosses the city to Maryland. In Maryland it is also Maryland Route 4 (MD 4) to MD 717 in Upper Marlboro, where it becomes Stephanie Roper Highway. The section between the White House and Congress is called "America's Main Street"; it is the location of official parades and processions, as well as protest marches. Moreover, Pennsylvania Avenue is an important commuter road and is part of the National Highway System. Route The avenue runs for inside Washington, but the of Pennsylvania Avenue from the White House to the United States Capitol building is considered the most important. It continues within the city for , from the southeast corner of the Capitol grounds through the Capitol Hill neighborhood, and over the Anacostia River on the John Philip Sousa Bridge. Crossing most of Prince George's County, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gates To Rugby School - Geograph
Gates is the plural of gate, a point of entry to a space which is enclosed by walls. It may also refer to: People * Gates (surname), various people with the last name * Gates Brown (1939-2013), American Major League Baseball player * Gates McFadden (born 1949), American actress and choreographer * Gates P. Thruston (1835-1912), American Civil War veteran, lawyer and businessman * Josephine Gates Kelly (1888-1976), Native American activist Places Canada * Gates, British Columbia, Canada, a rural community ** Gates River, a river in British Columbia ** Gates Valley, a valley in British Columbia ** Gates Lake, at the head of the Gates River United States * Gates, Nebraska, an unincorporated community * Gates, New York, a town ** Gates (CDP), New York, census-designated place * Gates, Oregon, a city * Gates, Tennessee, a town * Gates County, North Carolina, United States ** Gates, North Carolina, an unincorporated community in the county * Gates Pass, Arizona, a mountain pass Art ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeydew (secretion)
Honeydew is a sugar-rich sticky liquid, secreted by aphids and some scale insects as they feed on plant sap. When their mouthpart penetrates the phloem, the sugary, high-pressure liquid is forced out of the anus of the aphid. Honeydew is particularly common as a secretion in hemipteran insects and is often the basis for trophobiosis. Some caterpillars of Lycaenidae butterflies and some moths also produce honeydew. Honeydew producing insects, like cicadas, pierce phloem ducts to access the sugar rich sap. The sap continues to bleed after the insects have moved on, leaving a white sugar crust called manna. Ants may collect, or "milk", honeydew directly from aphids and other honeydew producers, which benefit from their presence due to their driving away predators such as lady beetles or parasitic wasps—see ''Crematogaster peringueyi''. Animals and plants in a mutually symbiotic arrangement with ants are called Myrmecophiles. In Madagascar, some gecko species in the genera ''Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
