Biology:Ulmus 'Argenteo-Marginata'

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Ulmus 'Argenteo-Marginata'
GenusUlmus
Cultivar'Argenteo-Marginata'
OriginGermany

The elm cultivar Ulmus 'Argenteo-Marginata' was first mentioned by Deegen in Deutsches Magazin für Garten- und Blumenkund (1879),[1] as Ulmus campestris elegans foliis argenteo-marginatis. An U. campestris fol. argenteo-marginata Hort. (later just U. campestris argenteo-marginata) was distributed by the Späth nursery, Berlin, from the 1890s to the 1930s.[2][3]

Green considered the tree possibly a cultivar of Field Elm or of U. × hollandica.

Description

Deegen described the tree as having leaves bordered with white. The leaves were described in a later reference as also being very rough above, weakly pubescent below, and measuring < 8 cm long by < 4 cm broad.[4] Späth catalogues likewise describe white-bordered leaves.[2][3]

Cultivation

No specimens are known to survive, unless the tree is synonymous with one of two cultivars with sometimes silver-white margined leaves, U. minor 'Argenteo-Variegata' or the rough-leafed U. minor 'Atinia Variegata',[5] both of which match the microphylla foliis marginatis description (Synonymy below). One tree was planted in 1897 as U. campestris fol. argenteis marginatis at the Dominion Arboretum, Ottawa, Canada.[6] Three specimens supplied by the Späth nursery, Berlin, to the RBGE in 1902 as U. campestris fol. argenteo-marginata may survive in Edinburgh, as it was the practice of the Garden to distribute trees about the city (viz. the Wentworth Elm);[7] the current list of Living Accessions held in the Garden per se does not list the plant.[8]

Synonymy

References

  1. Deutsches Magazin für Garten- und Blumenkund, 60, 1879
  2. 2.0 2.1 Katalog. 108. Berlin, Germany: L. Späth Baumschulenweg. 1902–1903. pp. 132–133. https://commons.wikimedia.org/wiki/File:L._Sp%C3%A4th_Baumschulenweg_Katalog_1903_pages_131-133.pdf. 
  3. 3.0 3.1 Späth, Ludwig (1930). Späth-Buch, 1720-1930. Berlin: Self published. pp. 311–313, 351–352. 
  4. Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia (Arnold Arboretum, Harvard University) 24 (6–8): 41–80. https://archive.org/stream/arnoldiaarno_21#page/40/mode/2up/. Retrieved 16 February 2017.  Späth's catalogues likewise describe leaves bordered with white.
  5. Photograph of white-margined English Elm leaves in Gerald Wilkinson, Epitaph for the Elm, Hutchinson, London 1978, p.67 (ISBN:0099212803 / 0-09-921280-3)
  6. Saunders, William; Macoun, William Tyrrell (1899). Catalogue of the trees and shrubs in the arboretum and botanic gardens at the central experimental farm (2 ed.). pp. 74–75. https://archive.org/stream/bulletinissues00ottogoog#page/n80/mode/2up/. 
  7. Accessions book. Royal Botanic Garden Edinburgh. 1902. pp. 45, 47. https://commons.wikimedia.org/wiki/File:Royal_Botanic_Garden_Edinburgh._(1902)._Accessions_book_pages_45,47.jpg. 
  8. "List of Living Accessions: Ulmus". Royal Botanic Garden Edinburgh. http://elmer.rbge.org.uk/bgbase/livcol/bgbaselivcol.php?eti=Ulmus&countOnly=&cfg=bgbase%2Flivcol%2Fbgbaselivcol.cfg&acc__num=.