Exeter Elm
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The curious cultivar U. glabra Exoniensis or Exeter Elm was discovered near Exeter, England in 1826, and was propagated by the Ford nursery in Exeter. The tree has an upright form, occasionally reaching 17 m in height, but is chiefly distinguished by leaves that wrap around the branchlets, and thus remain attached to the tree well into winter. It is also possessed of a moderate resistance to Dutch elm disease, and commonly featured in the Dutch elm breeding programme in association with the Field Elm U. minor and Himalayan Elm U. wallichiana.
[edit] References
- Bean, W. J. (1981). Trees and shrubs hardy in Great Britain, 7th edition. Murray, London.
- Elwes, H. J. & Henry, A. (1913). The Trees of Great Britain & Ireland. Vol. VII. pp 1848-1929. Private publication, Edinburgh. [1]
- Heybroek, H. (1983). The Dutch elm breeding program. In Sticklen & Sherald (Eds). Dutch elm disease research (Ch. 3). Springer Verlag, New York.
- Richens, R. H. (1983). Elm. Cambridge University Press.
- White, J. & More, D. (2003). Trees of Britain and Northern Europe. Cassell's, London.