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・ Ulmus 'Cebennensis'
・ Ulmus 'Clusius'
・ Ulmus 'Columella'
・ Ulmus 'Commelin'
・ Ulmus 'Coolshade'
・ Ulmus 'Den Haag'
・ Ulmus 'Dodoens'
・ Ulmus 'Exoniensis'
・ Ulmus 'Fiorente'
・ Ulmus 'Folia Aurea'
・ Ulmus 'Folia Rhomboidea'
・ Ulmus 'Folia Rubra'
・ Ulmus 'Folia Variegata Pendula'
・ Ulmus 'Frontier'
・ Ulmus 'Globosa'
Ulmus 'Groeneveld'
・ Ulmus 'Hamburg'
・ Ulmus 'Hertfordensis Angustifolia'
・ Ulmus 'Hertfordensis Latifolia'
・ Ulmus 'Homestead'
・ Ulmus 'Improved Coolshade'
・ Ulmus 'Jalaica'
・ Ulmus 'Kansas Hybrid'
・ Ulmus 'Klemmer Blanc'
・ Ulmus 'Klemmer'
・ Ulmus 'Koopmannii'
・ Ulmus 'Lincoln'
・ Ulmus 'Lobel'
・ Ulmus 'Lombartsii'
・ Ulmus 'Louis van Houtte'


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Ulmus 'Groeneveld' : ウィキペディア英語版
Ulmus 'Groeneveld'

''Ulmus'' 'Groeneveld' was cloned in 1949 and released in 1963 in response to the earlier, less virulent form of Dutch elm disease that afflicted Europe shortly after the First World War.〔Burdekin, D. A. & Rushforth, K. D. (Revised by Webber J. F. 1996). Elms resistant to Dutch elm disease. ''Arboricultural Research Note'' 2/96. Arboricultural Advisory and Information Service, Alice Holt, Farnham, UK.〕〔Santamour, F. S., & Bentz, S. E. (1995). Updated checklist of elm (Ulmus) cultivars for use in North America. ''Journal of Arboriculture'', 21(3): May, 1995.〕 The cultivar was derived from a crossing of Dutch clones '49', (originally believed to be an English Wych Elm ''Ulmus glabra'' but later identified as another example of ''Ulmus × hollandica'') and '1', a Field Elm ''Ulmus minor'' found in central France and marketed by the Barbier nursery in Orléans.
==Description==

The tree is slow growing, and produces a dense, upswept growth which initially made it popular as a street tree in the Netherlands.〔White, J. & More, D. (2002). ''Trees of Britain & Northern Europe''. Cassell's, London.〕 The dark-green obovate leaves are < 9 cm long by 4 cm broad, arranged in clusters on short branchlets.〔Photographs of 'Groeneveld' elm () and samarae ()〕

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