Celtidea

Taxobox
status = PE
name = Ulmus laevis var. celtidea
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Rosales
familia = Cannabaceae
genus = "Ulmus"
species = "U. laevis"
trinomial = "Ulmus laevis" var. "celtidea"
trinomial_authority = RogowiczThe European White Elm "U. laevis" var. celtidea Rogowicz was first described by Rogowicz ("Fl. Kief." 229 1869), who found the tree in 1856 near Chernihiv, (syns. Chernigof, Chernigov) in what is now northern Ukraine. The leaves were oblong-lanceolate, but only about 25 mm 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. Similar trees were later found near Briansk in the Orel Province, but featured larger leaves (Chitrovo, in "Bull. Soc. Nat. Orel" i. 50 1907).One specimen grown at the Strona Arboretum [http://en.wikipedia.org/wiki/Ulmus_lamellosa] , 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.

Cultivars

None known.

Hybrid cultivars

None known

Arboreta etc. accessions

North America

None known

Europe

*?Royal Botanic Garden Wakehurst Place, acc. no. 1973-21047, as "U. laevis" var. "glabra" obtained from a grafted tree grown at Kew now lost; provenance notes of the latter have not survived either.

Nurseries

None known

ynonymy

*"Ulmus celtidea": Litvinov, "Schedae. Herb. Fl. Ross.", vi. 167, 1908.
*"Ulmus pedunculata (: laevis)" var. "glabra": Trautvetter, "Bull. Phys. Math. Acad. Imp. Sc. St. Petersburg", xv. 349 1857.

References

*Elwes, H. J. & Henry, A. (1913). "The Trees of Great Britain & Ireland". Vol. VII. pp 1848-1929. Private publication. [http://fax.libs.uga.edu/QK488xE4/7tgbi/]

External links

*http://www.bioversityinternational.org/publications/Pdf/921.pdf Ecology of the European White Elm