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The cultivar 'Koopmannii', Lauche ex. Spath, was cloned from a specimen raised from seed sent from Margilan, Turkestan by Koopmann to the Botanischer Garten Berlin [2] circa 1880. The tree was first listed in the Späth nursery (Berlin, Germany), catalogue no. 62, p. 6. 101, 1885, as Ulmus Koopmannii, and later by Krüssmann in Handb. Laubgeh. 2: 534, 1962, as a cultivar. The tree is said to resemble Ulmus minor subsp. minor 'Umbraculifera' in form, with a dense, oval crown and small, ovate leaves < 30 mm in length [1] [2] [3].
'Koopmannii' was traditionally grown in cemeteries in Turkestan, where it occasionally reached a great size. It was marketed in Europe by Späth, and a specimen was once grown at Kew Gardens, where it performed rather poorly.
[edit] Arboreta etc. accessions
[edit] North America
- Morton Arboretum acc. no. 465-72 (as U. carpinifolia (: minor) Koopmannii, Koopmann's Smooth-leaved Elm)
[edit] Europe
[edit] Synonymy
- Ulmus carpinifolia 'Koopmannii': Morton Arboretum catalogue, 2006.
[edit] References
- ^ Ascherson & Graebner (1891). Syn. Middeleurop. Flora, iv.557.
- ^ Elwes, H. J. & Henry, A. (1913). The Trees of Great Britain & Ireland. Vol. VII. pp 1848-1929. Private publication, Edinburgh. [1]
- ^ Lauche (1883). Deutsche Dendrologie, 349.
