Ulmus wallichiana var. tomentosa
Ulmus wallichiana var. tomentosa | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Rosales |
Family: | Ulmaceae |
Genus: | Ulmus |
Species: | |
Variety: | U. w. var. tomentosa
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Trinomial name | |
Ulmus wallichiana var. tomentosa Melville & Heybroek
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Ulmus wallichiana var. tomentosa was identified by Melville & Heybroek after the latter's expedition to the Himalaya in 1960.
Description[]
The tree is very similar to Ulmus wallichiana subsp. wallichiana, but distinguished by young stems and lower surfaces of leaves densely white-tomentose; the samarae are uniformly hirsute.
Pests and diseases[]
The species has a high resistance to the fungus Ophiostoma himal-ulmi endemic to the Himalaya and the cause of Dutch elm disease there.
Cultivation[]
The tree is not known to be in cultivation in the West.
References[]
- Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. Kew Bulletin, Vol. 26 (1). Kew, London.
External links[]
- "Ulmus wallichiana var. tomentosa (1867) K000852632". Herbarium catalogue. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 17 October 2016.
- "Ulmus wallichiana var. tomentosa (1867) K000852683". Herbarium catalogue. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 17 October 2016.
Categories:
- Ulmus
- Flora of West Himalaya
- Trees of Pakistan
- Vulnerable plants
- Elm species and varieties