The Siberian elm cultivar Ulmus pumila 'Dropmore' [1] was grown from seed collected in Harbin, Manchuria, China, by F. L. Skinner, of Dropmore, Manitoba.[1] Green reported (1964) a suggestion to merge the Siberian elm cultivars 'Harbin' and 'Manchu' with 'Dropmore', as all came from the Harbin area.[2] In the event, 'Dropmore' appears to have superseded these earlier cultivars.[3]
| Ulmus pumila 'Dropmore' | |
|---|---|
_1954_and_Ulmus_pumila_%27DROPMORE%27_1954_The_UW_Madison_Arboretum_1987.06.18.jpg) Ulmus pumila 'Dropmore' (right), Ulmus 'Fremont' (U. pumila x U. rubra) (left), 1987, Madison Arboretum, University of Wisconsin | |
| Species | Ulmus pumila |
| Cultivar | 'Dropmore' |
| Origin | US |
The cultivar 'Chinkota' was raised in North Dakota from 'Dropmore' seed.[4]
Description
edit'Dropmore' is a fast-growing bushy form producing small leaves.
Pests and diseases
editSee under Ulmus pumila.
Cultivation
editThe tree remains in commercial cultivation in the United States. Considered cold-hardy far into Canada [2], it did not perform well in the hot, arid, climate of Arizona as part of the elm trials in conducted by the Northern Arizona University at Holbrook[3].
Accessions
edit- North America
- Dominion Arboretum, Ottawa, Ontario, Canada. No acc. details.
- Morton Arboretum, US. Acc. no. 883–85[5]
- University of Wisconsin–Madison Arboretum, US. Acc. details not known
- Europe
- Grange Farm Arboretum, Lincolnshire, UK. Acc. no. 1273.
Nurseries
edit- North America
References
edit- ^ 'Siberian Elm', South Dakota Dept. of Agriculture, Forestry Div., Pierre, S.D.; sdgs.usd.edu
- ^ Arnoldia : Bulletin of the Arnold Arboretum, 24 July 1964, Vol 24 Nos 6-8, pp.40-80
- ^ Santamour, Frank S.; Bentz, Susan E. (May 1995). 'Updated Checklist of Elm (Ulmus) Cultivars for use in North America', Journal of Arboriculture. 21 (3); pp.122–131.
- ^ Collins, P. E. (1955). Chinkota Elm. South Dakota Farm and Home Research. 7 (1), 14–16, 27. South Dakota State University, Brookings, USA.
- ^ Photographs of Morton Arboretum 'Dropmore', Acc. no. 883-55; cirrusimage.com