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American Elm ''Ulmus americana'', generally known as the American elm or, less commonly, as the white elm or water elm, is a species of elm native to eastern North America. The trees can live for several hundred years. It is a very hardy species that can ...
cultivar A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root a ...
''Ulmus americana'' 'Nigricans' Dieck was cloned from a selection made from seedlings raised by the Zöschener Baumschule,
Zöschen Zöschen is a village and a former municipality in the district Saalekreis, in Saxony-Anhalt, Germany. Since 31 December 2009, it is part of the town Leuna Leuna () is a town in Saxony-Anhalt, eastern Germany, south of Merseburg and Halle, Saxon ...
,
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
, and listed by Georg Dieck with a brief description in ''Haupt-catalog der Obst- und gehölzbaumschulen des ritterguts Zöschen bei Merseburg'', 1885. An 'American Black Elm', "a variety of ''Ulmus americana'' of more erect habit", was marketed by Trumbull and Beebe's nursery, San Francisco, in the 1890s, along with a batch of other European elm cultivars.'Trumbull & Beebe's descriptive catalogue of fruit and ornamental trees', San Francisco, 1892; p.35
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Description

The tree was distinguished by its very dark green foliage. Occasionally listed as 'Nigrescens', it has caused confusion with a ''U. minor'' cultivar of that name.


Cultivation

No specimens are known to survive.


Synonymy

*''U. americana'' f. ''nigrescens'' Dieck:
Schelle :''Schelle is also the German name for Šaľa, Slovakia.'' Schelle () is a municipality located in the Belgian province of Antwerp Antwerp (; ; ) is a City status in Belgium, city and a Municipalities of Belgium, municipality in the Flemi ...
in Beissner et al
''Handbuch der Laubholz-Benennung'' 87. 1903


References

{{Elm species, varieties, hybrids, hybrid cultivars and species cultivars , state=collapsed American elm cultivar Ulmus articles missing images Ulmus Missing elm cultivars