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The hybrid elm Ulmus × androssowii R. Kam. hails from Uzbekistan, where it was once commonly planted along the streets of Samarkand. The tree, which grows to a height of 20 m, is distinguished by its very dense spherical crown and pubescent leaves [1]. According to Lozina-Lozinskaia [2] the tree is unknown in the wild, and apparently arose from a crossing of U. densa (: Ulmus minor 'Umbraculifera') and the Siberian Elm Ulmus pumila. The hybrid has been widely planted in southern and western Russia; cold-hardy, it prefers a rich soil and moderate humidity. The tree is not known to have been introduced to North America or Australasia.
[edit] Arboreta etc. accessions
- Europe
- Hortus Botanicus Nationalis, Salaspils, Latvia acc. nos. 18165, 18166 (as U. pumila f. androssowii, both from Moscow).
[edit] Synonymy
- Ulmus Androssowii: Litv. [2], in Sched. Herb. Fl. Ross. 8: 23, no. 2445, t.2, 1922.
[edit] References
- ^ Green, P. S. (1964). Registration of cultivar names in Ulmus. Arnoldia, Vol. 24. Arnold Arboretum, Harvard University. [1]
- ^ Sokolov (1951). Trees & Shrubs in the U.S.S.R (in Russian), 2: 506.
