The elm cultivar ''Ulmus'' 'Koopmannii' was cloned from a specimen raised from seed sent from

Margilan Margilan ( uz, Marg‘ilon/Марғилон, ; russian: Маргилан) is a city (2022 pop. 242,500) in Fergana Region in eastern Uzbekistan. Administratively, Margilan is a district-level city, that includes the urban-type settlement Yangi Marg ...

, Turkestan (now in eastern Uzbekistan) by Koopmann to the Botanischer Garten Berlinbr>
c. 1880. Noted in 1881 as a 'new elm', it was later listed by the

Späth nursery The Späth (often spelt ''Spaeth'') family created one of the world's most notable plant nurseries of the 19th and early 20th centuries. The nursery had been founded in 1720 by Christoph Späth but removed to the erstwhile district of Baumschulen ...

( Berlin, Germany), catalogue no. 62, p. 6. 101, 1885, as ''Ulmus Koopmannii'', and later by Krüssmann in 1962 as a cultivar of ''U. minor''. Margilan is beyond the main range of ''Ulmus minor''. Augustine Henry, who saw the specimens in Berlin and Kew, believed Koopmann's Elm to be a form of '' Ulmus pumila'' (Siberian elm), a view not shared by

Rehder Rehder is a German surname. Notable people with this surname include the following: * Alfred Rehder (1863–1949), German-American botanist and Harvard professor * Elke Rehder (born 1953), German artist * Harald Alfred Rehder (1907–1996), Ameri ...

of the Arbold Arboretum. Ascherson & Graebner said the tree produced 'very numerous root shoots', which suggests it may be a cultivar of ''U. minor''. Until DNA analysis can confirm its origin, the cultivar is now treated as ''Ulmus'' 'Koopmannii'.

Description

The tree is said to resemble ''Ulmus minor'' 'Umbraculifera' in form, though more globose in outline, with a dense, narrowish oval crown, a height to , and small,

ovate Ovate may refer to: *Ovate (egg-shaped) leaves, tepals, or other botanical parts *Ovate, a type of prehistoric stone hand axe *Ovates, one of three ranks of membership in the Welsh Gorsedd *Vates In modern English, the nouns vates () and ovat ...

leaves < 30 mm in length.Photograph of Koopmanii': When grafted, the tree has an ovoid head but is shrubby and stoloniferous when propagated by cuttings.

Cultivation

Koopman claimed that 'Koopmannii' was traditionally grown in cemeteries in Turkestan, where it occasionally reached a great size, In the late 19th and early 20th century it was marketed in Europe by Späth, and was represented by a tree in the Berlin Botanical Garden. One tree was planted in 1897 as ''U. campestris Koopmannii'' at the

Dominion Arboretum The Dominion Arboretum (french: Arboretum du Dominion) is an arboretum part of the Central Experimental Farm of Agriculture and Agri-Food Canada in Ottawa, Ontario, Canada. Originally begun in 1889, the Arboretum covers about of rolling land ...

Ottawa Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...

, Canada. The tree was introduced to the US in the late 19th century, appearing as a "new variety" in the 1897 catalogue of the Mount Hope Nursery (also known as Ellwanger and

Barry Barry may refer to: People and fictional characters * Barry (name), including lists of people with the given name, nickname or surname, as well as fictional characters with the given name * Dancing Barry, stage name of Barry Richards (born c. 19 ...

) of Rochester, New York.Ellwanger & Barry, Mount Hope Nurseries, Rochester, 1898 catalogue; p.62
/ref> A specimen was once grown at Kew Gardens, where it performed rather poorly. Specimens supplied by Späth to the

RBGE The Royal Botanic Garden Edinburgh (RBGE) is a scientific centre for the study of plants, their diversity and conservation, as well as a popular tourist attraction. Founded in 1670 as a physic garden to grow medicinal plants, today it occupies ...

in 1902 as ''U. campestris'' 'Koopmannii' may survive in Edinburgh as it was the practice of the Garden to distribute trees about the city (viz. the Wentworth Elm); the current list of Living Accessions held in the Garden ''per se'' does not list the plant. ''U. campestris'' 'Koopmannii' was marketed in the 1930s by the Hesse Nursery of Weener, Germany.

Synonymy

*''Ulmus carpinifolia'' 'Koopmannii': Morton Arboretum catalogue, 2006.

Accessions

North America

* Morton Arboretum, US. Acc. no. 465–72 (as ''U. carpinifolia (: minor)'' Koopmannii, Koopmann's Smooth-leaved Elm *

, Canada. Accession no. 2569

Europe

*Hortus Botanicus Nationalis, Salaspils, Latvia. acc. no. 18145

References

{{Elm species, varieties, hybrids, hybrid cultivars and species cultivars , state=collapsed Elm cultivars Ulmus articles with images Ulmus Ulmus Edinburgh Spath 1902