List of Elm species and varieties by scientific name

=Species, varieties, forms=

*"Mountain elms": spring flowering; flowers subsessile; leaves usually rough above.
**"Ulmus bergmanniana" - Bergmann's Elm
***"Ulmus bergmanniana" var. "bergmanniana"
***"Ulmus bergmanniana" var. "lasiophylla"
**"Ulmus castaneifolia" - Chestnut-leafed Elm
**"Ulmus changii"
***"Ulmus changii" var. "changii"
***"Ulmus changii" var. "kunmingensis"
**"Ulmus chumlia"
**"Ulmus elongata"
**"Ulmus gaussenii" - Anhui Elm
**"Ulmus glabra" - Wych Elm, Scots Elm,
**"Ulmus glaucescens" - Gansu Elm
***"Ulmus glaucescens" var. "glaucescens"
***"Ulmus glaucescens" var. "lasiocarpa"
**"Ulmus laciniata" - Manchurian Elm, Cut-leaf Elm
***"Ulmus laciniata var. nikkoensis" - Nikko Elm
**"Ulmus lamellosa" - Hebei Elm
**"Ulmus macrocarpa" - Large-fruited Elm
***"Ulmus macrocarpa" var. "glabra"
***"Ulmus macrocarpa" var. "macrocarpa"
**"Ulmus mexicana" - Mexican Elm
**"Ulmus microcarpa"
**"Ulmus prunifolia"
**"Ulmus rubra" - Slippery Elm, Red Elm
**"Ulmus uyematsui" - Arishan Elm
**"Ulmus wallichiana" - Himalayan Elm, Kashmir Elm
***"Ulmus wallichiana" subsp. "wallichiana"
***"Ulmus wallichiana" subsp. "xanthoderma"
***"Ulmus wallichiana" var. "tomentosa"

*"Field elms": spring flowering; flowers subsessile; leaves usually smooth above.
**"Ulmus canescens" - Grey Elm, Grey-leafed Elm, Hoary Elm
**"Ulmus chenmoui" - Chenmou Elm
**"Ulmus davidiana" - David Elm, Father David's Elm
***"Ulmus davidiana" var. "davidiana"
***"Ulmus davidiana" var. "japonica" - Japanese Elm, Wilson's Elm
**"Ulmus harbinensis"
**"Ulmus ismaelis"
**"Ulmus lanceifolia"
**"Ulmus minor" - Field Elm
***"Ulmus minor" subsp. "angustifolia" - Cornish Elm
***"Ulmus minor" subsp. "minor" - Smooth-leaved Elm, Narrow-leaved Elm
***"Ulmus minor" var. "plotii" - Plot's Elm, Goodyer's Elm, Lock Elm
***"Ulmus minor" subsp. "sarniensis" - Guernsey Elm, Jersey Elm, Southampton Elm, Wheatley Elm
**"Ulmus procera" - English Elm, Atinian Elm
**"Ulmus pseudopropinqua"
**"Ulmus pumila" - Siberian Elm
***"Ulmus pumila" var. "arborea"
**"Ulmus szechuanica" - Szechuan Elm
**"Ulmus villosa" - Cherry Bark Elm

*"White elms": spring flowering; flowers pedunculate
**"Ulmus alata" - Winged Elm, Wahoo
**"Ulmus americana" - American Elm, White Elm
**"Ulmus laevis" - European White Elm, Fluttering Elm, Spreading Elm, (USA) Russian Elm
**"Ulmus thomasii" - Rock Elm, Cork Elm

*"Autumn-flowering elms": autumn flowering.
**"Ulmus crassifolia" - Cedar Elm
**"Ulmus parvifolia" - Chinese Elm, Lacebark Elm
***"Ulmus parvifolia" var. "coreana" - Korean Lacebark Elm
***"Ulmus parvifolia" f. "lanceolata"
**"Ulmus serotina" - September Elm

References

*Armstrong, J. V. & Sell, P. D. (1996). A revision of the British elms ("Ulmus" L., Ulmaceae): the historical background. "Bot. J. Linn. Soc." 120: 39-50.
*Bean, W. J. (1981). "Trees and shrubs hardy in Great Britain", 7th edition. Murray, London.
*Brasier, C. M. (1996). New horizons in Dutch elm disease control. Pages 20-28 in: "Report on Forest Research", 1996. Forestry Commission. HMSO, London, UK. [http://www.forestry.gov.uk/pdf/New_horizons_DED.pdf/$FILE/New_horizons_DED.pdf]
*Brookes, A. H. (2006). "An evaluation of disease-resistant hybrid and exotic elms as larval host plants for the White-letter Hairstreak Satyrium w-album, Part 1" [http://www.hantsiow-butterflies.org.uk/conservation.html#Elm%20Report] . Butterfly Conservation. Lulworth, UK.
*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.
*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.
*Elwes, H. J. & Henry, A. (1913). "The Trees of Great Britain & Ireland". Vol. VII. pp 1848-1929. Private publication [http://fax.libs.uga.edu/QK488xE4/7tgbi/]
*Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds), (2003). "Flora of China", Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. [http://flora.huh.harvard.edu/china/PDF/PDF05/Ulmus.pdf]
*Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. "Kew Bulletin, Vol. 26 (1)". Kew, London.
*Richens, R. H. (1983). "Elm". Cambridge University Press.
*Ware, G. (1995). Little-known elms from China: landscape tree possibilities. "Journal of Arboriculture", (Nov. 1995). International Society of Arboriculture, Champaign, Illinois, USA. [http://www.ces.ncsu.edu/fletcher/programs/nursery/metria/metria8/m87.pdf] .