Ulmus glabra 'Cornuta'
| Ulmus glabra | |
|---|---|
 | |
| Cultivar | 'Cornuta' |
| Origin | Europe |
The Wych Elm cultivar Ulmus glabra 'Cornuta' is a little-known tree, finally identified as a cultivar of U. glabra by Boom in Ned. Dendr. 1: 157, 1959.[1]
Description
'Cornuta' is distinguished only by the one or two cusp-like lobes either side of the apex of the leaf on strong-growing shoots, similar to Ulmus laciniata [2]
Pests and diseases
A cultivar of the Wych Elm, 'Cornuta' is susceptible to Dutch Elm disease. A specimen at the Ryston Hall , Norfolk, arboretum, obtained from the Späth nursery (as U. triserrata) before 1914,[3] was killed by the earlier strain of Dutch elm disease prevalent in the 1930s.
Cultivation
'Cornuta' is now very rare in cultivation. Although introduced to North America, there is no record of its introduction to Australasia.
Notable trees
A very large tree survives at Meise, in Belgium; measured in 2002, it had attained a height of 35 m, and a d.b.h. of @ 1.2 m. Another survives along a canal in Amsterdam. Three heavily pruned trees, closely planted and now fused together as one stand behind the Centraal Museum in Utrecht, Netherlands.[4][5]
Accessions
- North America
- Dominion Arboretum, Canada. Details not known.
- Europe
- Brighton & Hove City Council, UK, NCCPG elm collection , 1 tree, at Sussex University.
- Hortus Botanicus Nationalis, Salaspils, Latvia. Acc. no. 18114,5,6,7.
- National Botanic Garden ., Belgium. Details not known.
- Sir Harold Hillier Gardens, Ampfield, Hampshire, UK. Acc. no: 1982.0003. Misidentified as Ulmus laciniata.
- Wijdemeren City Council, Netherlands, Elm collection. 2 planted in De Kwakel, Kortenhoef (grafted on U. 'Lobel') 2009 + 2010, obtained from Noordplant Nursery, Glimmen, Netherlands.
Synonymy
- Horned Elm: origin obscure
- Ulmus campestris cornuta: David, Revue Hort. II. 4: 102, 1845.
- Ulmus corylacea var. grandidentata: Dumortier, Fl. Belg., 25, 1827.
- Ulmus intermedia Hort.: Kirchner, in Petzold & Kirchner, Arb. Muscav., 565, 1864, as name in synonymy.
- Ulmus Montana (: glabra) var. corylifolia: Zapalowicz, Conspectus Florae Galiciae Criticus 2: 98, 1908.
- Ulmus Montana (: glabra) f. lobata: Waisbecker , Oesterr. Bot. Zeitschr. 49: 67, 1899.
- Ulmus Montana (: glabra) var. superba: Lavallée Arb. Segrez. 237, 1877.
- Ulmus triserrata Hort. ex Dippel
References
- ↑ Green, P. S. (1964). Registration of cultivar names in Ulmus. Arnoldia, Vol. 24. Arnold Arboretum, Harvard University.
- ↑ Bean, W. J. (1981). Trees and shrubs hardy in Great Britain, 7th edition. Murray, London.
- ↑ Ryston Hall Arboretum catalogue, circa 1920
- ↑ "Monumentale boom > Duiveltjesiep utrecht". Bomenbieb.
- ↑ "Tolsteegsingel, Utrecht". Google Street View.