Ulmus × hollandica 'Fjerrestad'
The hybrid cultivar Ulmus × hollandica 'Fjerrestad' is one of a number of cultivars arising from the crossing of the Wych Elm U. glabra with a variety of Field Elm U. minor. The tree was first mentioned in Mededeeling, Comite inzake Bestudeering en Bestrijding van de Iepenziekte 13: 9, 1933, but without description.[1]
| Ulmus × hollandica 'Fjerrestad' | |
|---|---|
| Hybrid parentage | U. glabra × U. minor |
| Cultivar | 'Fjerrestad' |
| Origin | Sweden |
Description
None available.
Cultivation
No specimens are known to survive.
Etymology
The clone is named for the village of Fjärrestad in Skåne between Landskrona and Helsingborg, Sweden.
Hybrid cultivars
'Fjerrestad' was crossed with Ulmus × hollandica and U. minor in the Dutch elm breeding programme before World War II, but none of the progeny were of particular note and were discarded.[2]
gollark: With reals it's n or less which is bad and nobody likes it.
gollark: It means that for a polynomial P(x) with degree n, P(x) = 0 has exactly n solutions.
gollark: … no.
gollark: Oh, and I should mention that the fundamental theorem of algebra is only for polynomials with a single variable in them, not stuff like x³y² which contain several.
gollark: i.e. you can get some twice or more.
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.
- Went, J. A. (1954). The Dutch elm disease - Summary of 15 years' hybridisation and selection work (1937–1952). European Journal of Plant Pathology, Vol 60, 2, March 1954.
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