Ulmus elongata
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| Ulmus elongata L. K. Fu & C. S. Ding |
Ulmus elongata L. K. Fu & C. S. Ding is a medium-sized deciduous tree endemic to broadleaved forests in the eastern provinces of China. It grows to a height of < 30 m, the trunk < 0.8 m d.b.h. The bark is a brownish grey, and exfoliates in flakes. The leaves are < 20 cm long, narrowly elliptic with an acuminate apex and borne on twigs that occasionally feature corky wings. The wind-pollinated petal-less flowers appear on the second-year twigs in February. The samarae are distinctively shuttle-shaped, < 25 mm in length, on stalks < 22 mm long, and appear in March [1][2].
The species was virtually unknown in the West until it was introduced to the Morton Arboretum, Illinois in the 1990s as part of an evaluation of Chinese elms for landscape use. Its performance in the trials is not yet (2008) known [3] [2]. There are no known cultivars of this taxon, nor is it known to be available from any nurseries.
[edit] Arboreta etc. accessions
- North America
- Morton Arboretum, Lisle, Illinois. Details not known.
[edit] References
- ^ Fu, L. & Jin, J. (eds). (1992). China Red Data Book. Rare and endangered plants. Vol. 1. Science Press, Beijing.
- ^ Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN-10: 1930723407 [1]
- ^ Ware, G. (1995). Little-known elms from China: landscape tree possibilities. Journal of Arboriculture, (Nov. 1995). International Society of Arboriculture, Champaign, Illinois, USA.
