- Ulmus 'Lobel'
Infobox Cultivar
color = lightgreen
name = "Ulmus " hybrid
image_caption = 'Lobel' elms, East Street, Brighton, UK.
hybrid = ('Exoniensis' × "U. wallichiana") × ('Bea Schwarz' selfed)
cultivar = 'Lobel'
origin = Wageningen, The NetherlandsA Dutch hybrid
cultivar raised atWageningen , 'Lobel' was derived from a crossing of clone 202 ("U. glabra" 'Exoniensis' × "U. wallichiana") with 336 ("U." 'Bea Schwarz', selfed), cloned in1962 and released for sale in1973 .Description
'Lobel' is a fastigiate, small-crowned, tree not unlike the pyramidal
Hornbeam "Carpinus betulus " 'Fastigiata'.Heybroek, H. M. (1983). Resistant Elms for Europe. In Burdekin, D. A. (Ed.) Research on Dutch elm disease in Europe. "For. Comm. Bull." 60. pp 108 - 113.] Heybroek, H. M. (1993). The Dutch Elm Breeding Program. In Sticklen & Sherald (Eds.) (1993). "Dutch Elm Disease Research", Chapter 3. Springer Verlag, New York, USA] . The typically acuminate leaves are < 11 cm long by 7 cm broad, and notably late to flush, rarely before mid-May Santini, A., Fagnani, A., Ferrini, F., Ghelardini, L., & Mittempergher, L. (2005). Variation among Italian and French elm clones in their response to Ophiostoma novo-ulmi inoculation. "Forest Pathology", 25 (2005), 183-193, Blackwell Verlag, Berlin] .Pests and diseases
Like its Dutch contemporaries 'Dodoens' and 'Plantyn' 'Lobel' has proven no more than marginally resistant to the new, more virulent, strain of
Dutch elm disease .Cultivation
Planting is no longer recommended wherever the disease is prevalent.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. ] , and sales in the
Netherlands declined from over 12,000 in1989 to 1,100 in2004 Hiemstra, J.A. et al. (2007) "Belang en toekomst van de iep in Nederland". Praktijkonderzoek Plant & Omgeving,Wageningen UR, Netherlands.] [http://www.deboomkwekerij.nl/tsde/resources/attachments/download/true/im/false/id/69628/Iep.pdf] .'Lobel' is particularly resistant to sea winds, and was accordingly planted in large numbers by Portsmouth City Council in the late 1980s, notably to replace the ancient
Huntingdon Elm s lost in theGreat Storm of 1987 along the Ladies' Mile onSouthsea Common. There are also large plantings atEaling andPrimrose Hill ,London ,Brighton & Hove , andHavant . 'Lobel' was included in trials [http://www.netspace.net.au/~stephenf/Resistant_Elms.html] inCanberra ,Australia started in1988 but has not thrived in that environment. It is not known to have been commercially released in North America, although it was evaluated at theIowa State University in the 1970sGibbs, J. N., Brasier, C. M., McNabb Jnr., H.S., and Heybroek, H. M. (1975). Further studies on the pathenogenicity in Ceratocystis ulmi. "Europ. Journ. Forest. Path." 5 (3): 161-174.] and may still survive there.Etymology
The tree is named for
Matthias de L'obel , the Flemish botanist also commemorated by the genusLobelia .Accessions
Europe
*
Arboretum de La Petite Loiterie [http://lapetiteloiterie.free.fr/html/presentation/especes.html] ,Monthodon ,France . No details available
*Brighton & Hove City Council,UK ,NCCPG Elm Collection
*Royal Botanic Gardens Kew ,UK , acc. no. 1980.729Nurseries
Europe
*Barcham Trees [http://barcham.co.uk/taxonomy/term/94] ,
Ely , Cambs.,UK
*Bellwood Trees [http://www.bellwoodtrees.com/index.php] ,Meigle ,Perthshire ,Scotland ,UK
*De Reebock [http://www.dereebock.be] ,Zwalm ,Belgium
*Dulford Nurseries [http://www.dulford-nurseries.co.uk] ,Cullompton ,Devon ,UK
*Johan Van Herreweghe [http://www.jvh-nurseries.com] ,Schellebelle ,Belgium .
*Lorenz von Ehren [http://lve.ulmer.de/TUlEPTUwOTY4.html?UID=BEA9FD32B9D84066636F075F113998FB30EF481B64C697] ,Hamburg ,Germany
*PlantenTuin Esveld [http://www.esveld.nl/catalen/heestersu.htm#ulmus] ,Boskoop ,Netherlands .
*UmbraFlor [http://www.umbraflor.it] ,Spello ,Italy
*Westerveld Boomkwekerij B.V. [http://www.westerveldbv.nl/] ,Opheusden ,Netherlands References
Wikimedia Foundation. 2010.