Ulmus bergmanniana var. lasiophylla

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Ulmus bergmanniana var. lasiophylla

Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Magnoliopsida
Order:	Rosales
Family:	Ulmaceae
Genus:	Ulmus
Species:	Ulmus bergmanniana

Trinomial name

Ulmus bergmanniana var. lasiophylla
C. K. Schneid.

Synonyms

Ulmus lasiophylla C. K. Schneid. (W. C. Cheng)^[1]

Ulmus bergmanniana var. lasiophylla C. K. Schneid. is distinguished by Fu et al. (2002) as having "Leaf blade adaxially with densely curved pubescence (sic). Flowers and fruits February - April". The tree is endemic to China, on mountain slopes between 2100 m and 2900 m elevation in the provinces of Gansu, Shaanxi, north-west Sichuan, south-east Xizang (formerly Tibet), and north-west Yunnan. ^[2] Var. lasiophylla is also 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 available from any nurseries.

1 Arboreta etc. accessions
- 1.1 North America
- 1.2 Europe
2 References

[edit] Arboreta etc. accessions

[edit] North America

Chicago Botanic Garden, Glencoe, Illinois. Planted in West Collections Area.
Morton Arboretum (acc. no. 45-95), collected from the wild at an unrecorded site in China.

[edit] Europe

Royal Botanic Garden Edinburgh, Scotland. Acc. no. 19933397. Wild collected in Kunming, China, by Gothenburg Expedition.

[edit] 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. [1]
^ 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.