Klemmer (elm cultivar)

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Klemmer, the Klemmer or Flanders Elm, is probably one of a number of hybrids arising from the crossing of the Wych Elm U. glabra with a variety of Field Elm U. minor. Regarded by Green (1964) as "possibly U. carpinifolia (: minor) but probably U. × hollandica." Described as a rapid growing tree, tall with ascending branches initially forming a narrow, pyramidal head which later broadens, and producing numerous root-suckers and some epicormic shoots. The straight, cylindrical stem has a smooth bark. The leaves are ovate, < 75 mm long by < 50 mm broad, shortly acuminate at the apex, the upper surface scabrous and glabrescent. The samarae are distinguished by a seed situated close to the emargination. The timber is reddish in hue, strong but liable to warping. Before the Dutch elm disease pandemic, the tree was widely planted across northern France, where it was much esteemed for its timber and rapid growth. Before the First World War two specimens were established by the Royal Botanic Gardens Kew, one of which survives at Wakehurst Place. NB. Not to be confused with Klehmii, a cultivar of Ulmus americana.

Contents 1 Arboreta etc. accessions 1.1 North America 1.2 Europe 2 Nurseries 3 Synonymy 4 References

[edit] Arboreta etc. accessions

[edit] North America

• Morton Arboretum, acc. no. 535-49

[edit] Europe

• Royal Botanic Garden Wakehurst Place, UK, acc. no. 1908-14108

[edit] Nurseries

None known.

[edit] Synonymy

• Klemmer Rouge: Feneau, Bull. Fed. Soc. Centr. For. Belg. 9: 162, 1902.
• l'orme champetre klemmer: Gillekens, Elem. Arb. Forest. 41, 1891
• Ulmus campestris (: minor) var. Clemmeri: Lavallee, Arb. Segrez. 235, 1877.
• Ulmus klemeri: Spath, Berlin, 1900.

[edit] References

• Elwes, H. J. & Henry, A. (1913). The Trees of Great Britain & Ireland. Vol. VII. pp 1848-1929. Private publication, Edinburgh. [1]
• Green, P. S. (1964). Registration of cultivar names in Ulmus. Arnoldia, Vol. 24. Arnold Arboretum, Harvard University. [2]