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Ulmus 'Klemmer'
The elm cultivar ''Ulmus'' 'Klemmer' or Flanders Elm, is probably one of a number of hybrids arising from the crossing of the Wych Elm (''Ulmus glabra'') with a variety of Field Elm (''Ulmus minor''), making it a variety of ''Ulmus × hollandica ''. Originating in the Bruges area, it was released in 1789 and was listed at the Royal Botanic Gardens Kew as ''Ulmus × hollandica'' var. ''Klemmerii''.〔Photograph of 'Klemmer' leaves in Kew in Gerald Wilkinson, ''Epitaph for the Elm'', Hutchinson, London 1978 (ISBN 0099212803 / 0-09-921280-3)〕 The name 'Klemmer' derives, however, from the Flemish for 'climber', a reference to the tree's rapid growth and lofty height;〔Elwes & Henry, ''Trees of Great Britain & Ireland'' () 1913, p.1870 footnote & p.1872〕 so ''Klemmerii'' is a misnomer, incorrectly implying a proper noun Klemmer. This elm's rapid growth in its native area suggests F1 hybrid vigour. Though the tree was regarded by Green 〔Green, P. S. (1964). Registration of cultivar names in Ulmus. ''Arnoldia'', Vol. 24. Arnold Arboretum, Harvard University. ()〕 as "possibly ''U. carpinifolia (: minor)''", fast growth is not usually a feature of ''U. minor'' in Northern Europe.
NB. The tree should not be confused with 'Klehmii', a cultivar of ''Ulmus americana'' named for Charles Klehm, an Illinois nurseryman.
==Description==
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. 'Klemmer' has a straight, cylindrical stem. The bark is smooth in young trees and later fissured. The leaves are ovate, up to 7.5 cm (3 in) long and up to 5.0 cm (2 in) broad, shortly acuminate at the apex, the upper surface scabrous and glabrescent.〔(''Ulmus'' 'Klemmer' at Morton Arboretum )〕〔Photograph of 'Klemmer' leaves in Gerald Wilkinson, ''Epitaph for the Elm'', p. 82. Hutchinson, London 1978 (ISBN 0099212803 / 0-09-921280-3)〕 The samarae are distinguished by a seed situated close to the emargination. The timber is reddish in hue, strong but liable to warping.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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