Ulmus bergmanniana var. lasiophylla
Ulmus bergmanniana var. lasiophylla C. K. Schneid. is endemic to China, on mountain slopes at elevations of 2100–2900 m in Gansu, Shaanxi, north-west Sichuan, south-east Xizang (formerly Tibet), and north-west Yunnan.[2]
| Ulmus bergmanniana var. lasiophylla | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Ulmaceae |
| Genus: | Ulmus |
| Species: | |
| Variety: | U. b. var. lasiophylla |
| Trinomial name | |
| Ulmus bergmanniana var. lasiophylla | |
| Synonyms | |
|
Ulmus lasiophylla C. K. Schneid. (W. C. Cheng)[1] | |
Description
The tree is distinguished by Fu (2002) as having "Leaf blade adaxially with densely curved pubescence. Flowers and fruits February - April".
Cultivation
Var. lasiophylla is cold hardy; in artificial freezing tests at the Morton Arboretum [3] the LT50 (temp. at which 50% of tissues die) was found to be - 27.7 °C. There are no known cultivars of this taxon, nor is it known to be in commerce.
Accessions
North America
- Chicago Botanic Garden, US. No accession details; planted in West Collections Area.
- Morton Arboretum, US. Acc. no. 45–95. Collected from the wild at an unrecorded site in China.
- United States National Arboretum, Washington, D.C., US. Acc. nos. 76218, 68978.
Europe
- Grange Farm Arboretum , Lincolnshire, UK. Acc. no. 1057.
- Royal Botanic Garden Edinburgh, UK. Acc. no. 19933397. Wild collected in Kunming, China, by Gothenburg Expedition.
References
- C. K. Schneid., in Sargent, (1916), Pl. Wilson 3: 241.
- 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.
- Shirazi, A. M. & Ware, G. H. (2004). Evaluation of New Elms from China for Cold Hardiness in Northern Latitudes. International Symposium on Asian Plant Diversity & Systematics 2004, Sakura, Japan.
External links
- "Ulmus bergmanniana var. lasiophylla". Herbarium catalogue. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 17 October 2016.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.