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][permanent dead link], Washington, D.C., US. Acc. no. 69142.
Nurseries
- North America
(Widely available)
- Australasia
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. Retrieved 20 June 2016.
- ^ "Ulmus parvifolia 'Emer I' = ATHENA". JC Raulston Arboretum. Retrieved 2018-08-01.
41677
- ^ ca.uky.edu, Plant Pathology, Ulmus parvifolia 'Emer I' = ATHENA
- ^ "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
- ^ 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[permanent 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.
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- U. alata (Winged elm)
- U. americana (American elm)
- U. americana var. floridana (Florida elm)
- U. bergmanniana (Bergmann's elm)
- U. bergmanniana var. bergmanniana
- U. bergmanniana var. lasiophylla
- U. castaneifolia (Chestnut-leafed or multinerved elm)
- U. changii (Hangzhou elm)
- U. changii var. changii
- U. changii var. kunmingensis (Kunming elm)
- U. chenmoui (Chenmou or Langya Mountain elm)
- U. chumlia
- U. crassifolia (Cedar or Texas cedar elm)
- U. davidiana (David or Father David elm)
- U. davidiana var. davidiana
- U. davidiana var. japonica (Japanese elm)
- U. elongata (Long raceme elm)
- U. gaussenii (Anhui or hairy elm)
- U. glabra (Wych or scots elm)
- U. glaucescens (Gansu elm)
- U. glaucescens var. glaucescens
- U. glaucescens var. lasiocarpa (hairy-fruited glaucescent elm)
- U. harbinensis (Harbin elm)
- U. ismaelis
- U. laciniata (Manchurian cut-leaf or lobed elm)
- U. laciniata var. nikkoensis (Nikko elm)
- U. laevis (European white elm)
- U. laevis var. celtidea
- U. laevis var. parvifolia
- U. laevis var. simplicidens
- U. lamellosa (Hebei elm)
- U. lanceifolia (Vietnam elm)
- U. macrocarpa (Large-fruited elm)
- U. macrocarpa var. glabra
- U. macrocarpa var. macrocarpa
- U. mexicana (Mexican elm)
- U. microcarpa (Tibetan elm)
- U. minor (Field elm)
- U. minor subsp. minor
- U. minor var. italica
- U. parvifolia (Chinese or lacebark elm)
- U. parvifolia var. coreana (Korean elm)
- U. prunifolia (Cherry-leafed elm)
- U. pseudopropinqua (Harbin spring elm)
- U. pumila (Siberian elm)
- U. rubra (Slippery elm)
- U. serotina (September elm)
- U. szechuanica (Szechuan (Sichuan) or red-fruited elm)
- U. thomasii (Rock or cork elm)
- U. uyematsui (Alishan elm)
- U. villosa (Cherry-bark or marn elm)
- U. wallichiana (Himalayan or kashmir elm)
- U. wallichiana subsp. wallichiana
- U. wallichiana subsp. xanthoderma
- U. wallichiana var. tomentosa
- U. boissieri
- U. minor subsp. canescens (Grey, grey-leafed or hoary elm)
- U. elliptica
- U. davidiana var. japonica × U. minor
- U. × arbuscula
- U. × arkansana
- U. × brandisiana
- U. × diversifolia
- U. × hollandica (Dutch elm)
- U. × hollandica var. insularum
- U. × intermedia
- U. × mesocarpa
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- U. okanaganensis