Ulmus

Ulmus ialah genus tumbuhan berbunga dalam famili Ulmaceae merangkumi beberapa pokok meluruh di bawah nama umum elm. Genus mula muncul pada zaman Miosen di tengah benua Asia sekitar 20 juta tahun dahulu.

Elm
Ulmus minor, East Coker, Somerset, UK.
Pengelasan saintifik
Templat taksonomi hilang (baiki):	Ulmus

Pokok-pokok genus ini bertaburan asal di hampir serata Hemisfera Barat termasuk kawasan beriklim sederhana Amerika Utara dan Eurasia sampai sejauh kawasan khatulistiwa.

Elm boleh tumbuh tinggi dan sering digunakan sebagai tanaman hiasan. Namun, elma mudah terkena serangan hama, terutama dari cendawan Ophiostoma, yang disebarkan oleh kumbang. Genus ini adalah tumbuhan hermafrodit dengan bunga sempurna yang dapat diserbuki angin. Ia dapat menahan keasidan tanah yang luas tetapi memerlukan saliran yang baik.

Kulit elm merah yang matang

Kayu elm

Galeri

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  Elm Amerikana (Ulmus americana)

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  Ulmus bergmanniana

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  Ulmus davidiana

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  Elm kasar (Ulmus glabra)

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  Elm halus (Ulmus laevis)

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  Ulmus lamellosa

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  Ulmus macrocarpa

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  Ulmus minor

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  Ulmus parvifolia

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  Elm kerdil (Ulmus pumila)

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  Elm Alley di Fitzroy Garden (Melbourne)

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  Ulmus Parvifolia

Bacaan lanjut

• Richens, R. H. (1983). Elm. Cambridge University Press. ISBN 0-521-24916-3 A scientific, historical and cultural study, with a thesis on elm-classification, followed by a systematic survey of elms in England, region by region. Illustrated.
• Heybroek, H. M., Goudzwaard, L, Kaljee, H. (2009). Iep of olm, karakterboom van de Lage Landen (:Elm, a tree with character of the Low Countries). KNNV, Uitgeverij. ISBN 978-90-5011-281-9. A history of elm planting in the Netherlands, concluding with a 40 - page illustrated review of all the DED - resistant cultivars in commerce in 2009.
• Clouston, B.; Stansfield, K., para penyunting (1979). After the Elm. London: Heinemann. ISBN 0-434-13900-9 A general introduction, with a history of Dutch elm disease and proposals for re-landscaping in the aftermath of the pandemic. Illustrated.
• Coleman, M., penyunting (2009). Wych Elm. Edinburgh. ISBN 978-1-906129-21-7 A study of the species, with particular reference to the wych elm in Scotland and its use by craftsmen.
• Dunn, C. P., penyunting (New York). The Elms: Breeding, Conservation, and Disease-Management. ISBN 0-7923-7724-9
• Wilkinson, G. (1978). Epitaph for the Elm. London: Hutchinson. ISBN 0-09-921280-3 A photographic and pictorial celebration and general introduction.

Pautan luar

• "Elm trials". Northern Arizona University.
• Tree Family Ulmaceae Diagnostic photos of Elm species at the Morton Arboretum
• "Late 19th and early 20th-century photos of Elm species in Elwes & Henry's Trees of Great Britain & Ireland, v. 7" (PDF). 1913.
• "Elm Photo Gallery".
• Eichhorn, Markus (May 2010). "Elm – The Tree of Death". Test Tube. Brady Haran for the University of Nottingham.
• Teks di Wikisumber:
  • Elm. New International Encyclopedia. 1905.
  • Elm. Encyclopædia Britannica (ed. ke-11). 1911.
  • Elm. Encyclopedia Americana. 1920.
  • Elm. Collier's New Encyclopedia. 1921.