Biology:Ulmus parvifolia 'Emer I'
| Ulmus parvifolia 'Emer I' | |
|---|---|
| Species | Ulmus parvifolia |
| Cultivar | 'Emer I' or 'Emerald Isle' = Athena |
| Origin | US |
The Chinese Elm cultivar Ulmus parvifolia 'Emer I' or 'Emerald Isle' (trade designation: Athena) was cloned from a tree planted circa 1920 on the University of Georgia campus at Athens.[1]
Description
Athena is a small tree rarely exceeding 6 m in height, with a slightly broader, dense and rounded crown.[2] The leaves are a medium, glossy green, turning drab brown in autumn. The exfoliating, mottled bark is considered very attractive.[3]
Pests and diseases
The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[4] As with the species overall, damage caused by Japanese Beetle is relatively slight.[5]
Cultivation
Athena featured in the elm trials [1] conducted by Northern Arizona University at Holbrook, Arizona, but was unsuited to the hot, arid climate and sustained over 50% mortality in its first year. It is currently being evaluated in the National Elm Trial [2] coordinated by Colorado State University. Athena was introduced to Australia in 2002 as part of the Australian Urban Street Planting Programme [3]; it is not known to have been introduced to Europe.
Synonymy
- ? 'Athena Classic' (unchecked name)
Accessions
North America
- Bartlett Tree Experts, US. Acc. nos. 96-2159, 2000-076,077,079,081,083,084, 2003-941,942, 00-064, L467, L468.
- New York Botanical Garden, US. Acc. no. 3934/95
- University of Idaho arboretum, US. One tree. Acc. no. 1998011
- U S National Arboretum [4][no|permanent dead link|dead link}}], Washington, D.C., US. Acc. no. 69142.
Nurseries
- North America
(Widely available)
- Australasia
- Fleming's Nursery [5], Monbulk, Victoria, Australia.
References
- ↑ Santamour, Frank S.; Bentz, Susan E. (May 1995). "Updated Checklist of Elm (Ulmus) Cultivars for use in North America". Journal of Arboriculture 21 (3): 122–131. http://joa.isa-arbor.com/request.asp?JournalID=1&ArticleID=2673&Type=2. Retrieved 20 June 2016.
- ↑ "Ulmus parvifolia 'Emer I' = ATHENA". https://jcra.ncsu.edu/resources/photographs/results.php?search=41677. "41677"
- ↑ ca.uky.edu, Plant Pathology, Ulmus parvifolia 'Emer I' = ATHENA
- ↑ "Elm Leaf Beetle Survey". Archived from the original. Error: If you specify
|archiveurl=, you must also specify|archivedate=. https://web.archive.org/web/20110719132152/http://www.sunshinenursery.com/survey.htm. - ↑ Brady, C., Condra, J., & Potter, D. (2008) Resistance of Landscape-suitable Elm (Ulmus spp.) Cultivars to Japanese Beetle, Leaf Miners, and Gall Makers. 2008 Research Report, Nursery & Landscape Program, pp 15, 16. University of Kentucky.
External links
- http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/cultivars/ulmus_parvifolia.htm[yes|permanent dead link|dead link}}] Ulmus parvifolia cultivar list.
- https://web.archive.org/web/20030413074605/http://fletcher.ces.state.nc.us/programs/nursery/metria/metria11/warren/elm.htm Return of the Elm - the status of elms in the nursery industry in 2000. Warren, K., J. Frank Schmidt and Co.
 |  |
