Elm
Elms are deciduous and semi-deciduous trees,[1] found throughout the Northern Hemisphere from Siberia to Indonesia, Mexico to Japan. They have alternate, simple, single- or doubly-serrate leaves, usually asymmetric at the base and sharply pointed at the tip.
| Elm | |
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| Mature Slippery Elm | |
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| Genus: | Ulmus |
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Elms are hermaphroditic, having perfect flowers, and which, being wind-pollinated, are without petals. The fruit is a round samara.
Elms take many decades to grow to maturity.
Elm Media
A rooted cutting of European white elm (July)
- Iepziekte op goudiep (Ophiostoma ulmi on Ulmus hollandica 'Wredei' 4 May 2009).jpg
Golden elm tree with Dutch elm disease
- Xanthogaleruca luteola MHNT Dos.jpg
The elm leaf beetle
- RN Ulmus minor Umbraculifera.JPG
The ball-headed graft narvan elm, Ulmus minor 'Umbraculifera', cultivated in Persia and widely planted in central Asia
- Lafayette Street, Salem, MA.jpg
Lafayette Street in Salem, Massachusetts - an example of the high-tunneled effects of Ulmus americana avenues once common in New England (colorized postcard, 1910)
- Camperdown Elm Prospect Park Brooklyn.jpg
Camperdown elm (Ulmus glabra 'Camperdownii'), cultivated in Prospect Park, Brooklyn, New York
- English Elm avenue.jpg
An avenue of elm trees in Fitzroy Gardens, Melbourne
- Scripps College Elm Tree Lawn.jpg
A row of Princeton elm trees, which are moderately resistant to Dutch elm disease, at Scripps College in Claremont, California.
- USA-NYC-Central Park-The Mall.JPG
American elm trees along the Mall and Literary Walk in New York City's Central Park (2013)
Rows of American elm trees line a path south of the Lincoln Memorial Reflecting Pool on the National Mall in Washington, DC (November 11, 2006)
References
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Wikimedia Commons has media related to Ulmus. |
- Collin, E. (2001). Elm. In Teissier du Cros (Ed.) (2001) Forest Genetic Resources Management and Conservation. France as a case study. Ministry of Agriculture and Fisheries, Bureau of Genetic Resources. INRA DIC. France.
- Cornell University: Elm hybrids (pdf file)
- Martín-Benito D., Concepción García-Vallejo M., Alberto Pajares J., López D. 2005. Triterpenes in elms in Spain. Can. J. For. Res. 35: 199–205 (2005). [1] Archived 2007-06-28 at the Wayback Machine
- Mittempergher, L. & Santini, A. (2004) The history of elm breeding. Investigacion agraria: Sistemas y recursos forestales 13(1): 161-177 (2004).
- Ware, G. (1995). Little-known elms from China: landscape tree possibilities. Journal of Arboriculture, (Nov. 1995). International Society of Arboriculture, Champaign, Illinois, USA. [2] Archived 2007-11-30 at the Wayback Machine.