Ulmus

Elm
Ulmus minor,

East Coker, Somerset, UK.

Pengelasan saintifik s
Templat taksonomi hilang (baiki): Ulmus

Ulmus[1] ialah genus tumbuhan berbunga dalam famili Ulmaceae merangkumi beberapa pokok meluruh di bawah nama dardar (Arab: دَردَار, rumi: dardār)[1] atau nama Inggeris elm. Genus mula muncul pada zaman Miosen di tengah benua Asia sekitar 20 juta tahun dahulu.[2]

Pokok-pokok genus ini bertaburan asal di hampir serata Hemisfera Barat termasuk kawasan beriklim sederhana Amerika Utara dan Eurasia sampai sejauh kawasan khatulistiwa. Spesis Pokok Pengki adalah spesis terdapat di iklim khaulistiwa.

Dardar/elm boleh tumbuh tinggi dan sering digunakan sebagai tanaman hiasan. Namun, elm mudah terkena serangan hama, terutama dari cendawan Ophiostoma, yang disebarkan oleh kumbang. Genus ini adalah tumbuhan berbunga dwijantina[1] sempurna yang berdebunga dapat ditiup angin.[3] Dedaunnya gerigi dwitepi, bebijinya berkepak mudah diterbangkan angin.[1] Ia dapat menahan beraneka tahap keasidan tanah yang luas tetapi memerlukan saliran yang baik.

Kulit elm merah yang matang
Kayu elm

Galeri

Rujukan

  1. ^ a b c d Ghaleb, Edouar. الموسوعة في علوم الطبيعة (dalam bahasa Arab, Latin, dan Inggeris). 1. Beirut, Lubnan: Darul Masyriq. m/s. 239. ISBN 2-7214-2148-4. OCLC 44585590.
  2. ^ Richens, R. H. (1983). Elm. Cambridge University Press.
  3. ^ 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

Bacaan lanjut

  • Richens, R. H. (1983). Elm. Cambridge University Press. ISBN 0-521-24916-3CS1 maint: postscript (link) 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., penyunting (1979). After the Elm. London: Heinemann. ISBN 0-434-13900-9CS1 maint: postscript (link) 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 978-1-906129-21-7CS1 maint: postscript (link) 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 Check date values in: |year= (bantuan)CS1 maint: postscript (link)
  • Wilkinson, G. (1978). Epitaph for the Elm. London: Hutchinson. ISBN 0-09-921280-3CS1 maint: postscript (link) A photographic and pictorial celebration and general introduction.

Pautan luar

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