Ulmus × viminalis 'Betulaefolia'
| Ulmus × viminalis | |
|---|---|
| Hybrid parentage | U. minor × U. minor 'Plotii' |
| Cultivar | 'Betulaefolia' |
Ulmus × viminalis Lodd. 'Betulaefolia' (:'birch-leaved') is a hybrid cultivar derived from the crossing U. minor × U. minor 'Plotii'. It was listed by Loddiges of Hackney, London, in the catalogue of 1836,[1] and later by Loudon in Arboretum et Fruticetum Britannicum, 3: 1376, 1838, as Ulmus campestris var. betulaefolia. Melville considered the tree so named at Kew a form of U. × viminalis.[2] Loudon and Browne had noted that some forms of U. × viminalis can be mistaken for a variety of birch.[3][4]
Description
A pyramidal tree with ascending branches, distinguished by its leaves "somewhat resembling common birch", "narrowing towards the unequal base", elliptic to elliptic-oblong, 4-8 cm long.[5]
Pests and diseases
Trees of the U. × viminalis group are very susceptible to Dutch elm disease.
Cultivation
No specimens of U. × viminalis labelled 'Betulaefolia' are known to survive.
References
- ↑ Loddiges, Conrad (1836). "Catalogue of plants, in the collection of Conrad Loddiges & Sons, nurserymen, at Hackney, near London.". 13: 35.
- ↑ Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus" (PDF). Arnoldia. Arnold Arboretum, Harvard University. 24 (6–8): 41–80. Retrieved 20 June 2016.
- ↑ Loudon, Arboretum et Fruticetum Britannicum, 3: 1378, 1838
- ↑ Browne, D. J. (1846). The Trees of America. Harper & Brothers, New York.
- ↑ Green, 1964, p.50
External Links
- "Ulmus nitens v. betulaefolia". Herbarium catalogue. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 17 October 2016.