“Ulmus laevis var. celtidea”的意思、由来-开放百科全书

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Ulmus laevis var. celtidea

释义

Description
Cultivation
Accessions
Synonyms
References
External links

{{DISPLAYTITLE:Ulmus laevis var. celtidea}}{{infraspeciesbox
|name = Ulmus laevis var. celtidea
|genus = Ulmus
|species = laevis
|varietas = celtidea
|authority = Rogow.
}}Ulmus laevis var. celtidea Rogow. was a putative variety of European White Elm first described by Rogowicz,^[1] who found the tree in 1856 along the river Dnjepr ^[2] near Chernihiv in what is now northern Ukraine. The type specimen is held at the National Herbarium of Ukraine.^[3] The variety was first named as Ulmus pedunculata var. celtidea.^[2]

Similar trees were later found near Briansk in Oryol Oblast, but featured larger leaves.^[4]

Description

The leaves were oblong-lanceolate, but only about {{convert|25|mm|0}} in length, long-acuminate at the apex, and coarsely, sharpely serrate, cuneate and sub-equal at the base. The samarae were also notably smaller than the species ^[5]

Cultivation

One specimen which grew at the Strona Arboretum, University of Life Sciences, Warsaw, Poland (as Ulmus celtidea Litv.) died circa 2006. The tree was grown from seed collected from a tree at the Arboretum of the Forest-Technical Academy in St. Petersburg in 1961; it is not known whether this source is still alive. No cultivars or hybrid cultivars are known.

Accessions

Morton Arboretum acc. no. 1302-27 Grafts (6) from Arnold Arboretum of Harvard University (received as Ulmus laevis var. celtidea).
Royal Botanic Gardens Wakehurst Place, acc. no. 1973-21047, as Ulmus laevis var. glabra obtained from a grafted tree grown at Kew now lost; provenance notes of the latter have not survived either.

Synonyms

Ulmus celtidea: Litvinov, Schedae. Herb. Fl. Ross., vi. 167, 1908.
Ulmus pedunculata var. celtidea. Rogow. 1856.
Ulmus pedunculata (: laevis) var. glabra: Trautvetter, [https://archive.org/stream/bulletindelacla1517akad_1#page/187/mode/1up/ Bulletin de la Classe physico-mathématique de l'Académie impériale des sciences de Saint-Pétersbourg, xv. 349 1857].
Ulmus effusa Will. f. celtidea Rogow.

References

1. ^Rogowicz, A. S. (1869). Fl. Kief. 229, 1869.
2. ^¹Heybroek, 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|9789050112819}}
3. ^Specimen at the Herbarium of P. Rogowich, National Herbarium of Ukraine {{Webarchive|url=https://web.archive.org/web/20100128200353/http://www.nbuv.gov.ua/herbar/vask_e.htm |date=2010-01-28 }} as Ulmus effusa Will. f. celtidea Rogow.
4. ^Chitrovo, Bull. Soc. Nat. Orel i. 50, 1907
5. ^Elwes, H. J. & Henry, A. (1913). The Trees of Great Britain & Ireland. Vol. VII. pp 1848–1929. Private publication.

External links

Ecology of the European White Elm
Photo of type specimen of Ulmus celtidea (Rogov.) Litw. at National Herbarium of Ukraine

{{Elm species, varieties, hybrids, hybrid cultivars and species cultivars |state=collapsed}}{{Taxonbar|from=Q7879503}}{{Ulmaceae-stub}}

3 : Elm species and varieties|Ulmus articles missing images|Ulmus

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