Ulmus americana 'Patmore'
Elm cultivar
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The American elm cultivar Ulmus americana 'Patmore' was selected and raised by R. H. Patmore from a native tree in Brandon, Manitoba, Canada. It may be synonymous with another cultivar from the same source, known as 'Brandon'.[1]
| Ulmus americana 'Patmore' | |
|---|---|
| Species | Ulmus americana |
| Cultivar | 'Patmore' |
| Origin | Brandon, Manitoba, Canada |
Description
'Patmore' (or 'Brandon') differs from most American elms in possessing a pyramidal, as opposed to vase, form.[2]
Pests and diseases
No other specific information available, but the species generally is highly susceptible to Dutch elm disease and elm yellows; it is also moderately preferred for feeding and reproduction by the adult elm leaf beetle Xanthogaleruca luteola,[3] and highly preferred for feeding by the Japanese beetle Popillia japonica[4][5] in the United States. U. americana is also the most susceptible of all the elms to verticillium wilt.[6][7]
Cultivation
The tree is not known to have been cultivated beyond North America.
Synonymy
- 'Patmore Ascending', as 'grafted elm', Patmore Nursery Sales, Brandon, Cats. 1945 & 1955.
- 'Patmore Ascending Elm', Patmore Nursery Sales, Brandon, Cat. 1973.
- 'Exhibition Boulevard Elm', as 'grafted elm', Cat. 1958, and as 'grafted ascending elm' (1966).
Accessions
North America
- Dominion Arboretum, Canada, [dead link] No details available.