Ulmus americana 'Moline'
The American Elm cultivar Ulmus americana 'Moline' was cloned from a wild seedling transplanted to Moline, Illinois, in 1903 and propagated from 1916 by the Klehm Nurseries, Arlington Heights, IL. [1][2] Some authorities regard the tree as identical to 'Minneapolis Park'.
| Ulmus americana 'Moline' | |
|---|---|
 Mature 'Moline' in Moline, Illinois, 1951 | |
| Species | Ulmus americana |
| Cultivar | 'Moline' |
| Origin | Moline, Illinois, US |
Description
'Moline' is distinguished by its narrow but open form, likened to a Lombardy Poplar, when young, the branches of the older trees ultimately horizontal. The leaves could be exceptionally broad, measuring 15 cm across.[2][3]
Juvenile U. americana 'Moline'
Pests and diseases
In trials at the Morton Arboretum, Illinois, the tree was eschewed by the Elm Leaf Beetle Xanthogaleruca luteola. The tree's resistance to Dutch elm disease is not known. No other specific information available, but the species as a whole is highly preferred for feeding by the Japanese Beetle Popillia japonica.[4][5] U. americana is the most susceptible of all the elms to verticillium wilt.[6]
Cultivation
In earlier field trials at Morton, 'Moline' was found to have a relatively fast growth rate, exceeding 7.7 m (25 ft) in height in 10 years. The tree was still in cultivation in 1934, [7] but is not known to have been introduced to Europe or Australasia.
Synonymy
- Ulmus americana var. molinensis: Bailey & Bailey, Hortus Second 746, 1941.
Hybrid cultivars
'Moline' was crossed with American Elm W-185-21 to create the moderately disease-resistant cultivar 'Independence'.
Accessions
North America
- Morton Arboretum, US. Acc. no. 1297-27.
References
- Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. Arnold Arboretum, Harvard University. 24 (6–8): 41–80. Retrieved 16 February 2017.
- Welch, G. L. & Co. The Plumfield Nurseries, 1929 Catalog. Plumfield Nurseries, Fremont, Nebraska.
- Images of mature trees at Morton Arboretum
- Miller, Fredric; Ware, George; Jackson, Jennifer (2001-04-01). "Preference of Temperate Chinese Elms ( Ulmus spp.) for the Adult Japanese Beetle (Coleoptera: Scarabaeidae)". Journal of Economic Entomology. Oxford University Press (OUP). 94 (2): 445–448. doi:10.1603/0022-0493-94.2.445. ISSN 0022-0493. PMID 11332837.
- "Elm Leaf Beetle Survey". Archived from the original on 2011-07-19. Retrieved 17 July 2017.
- Pegg, G. F. & Brady, B. L. (2002). Verticillium Wilts. CABI Publishing. ISBN 0-85199-529-2
- Moffet, L. A. The Plumfield Nurseries, Bulletin No. 2, March 7, 1934. Plumfield Nurseries, Fremont, Nebraska.