Ulmus wallichiana subsp. wallichiana
- Ulmus wallichiana subsp. wallichiana
Taxobox
status = VU
name = "Ulmus wallichiana" subsp. "wallichiana"
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Rosales
familia = Ulmaceae
genus = "Ulmus"
species = "Ulmus wallichiana"
trinomial = "Ulmus wallichiana" subsp. "wallichiana"
trinomial_authority = Melville & Heybroek
"Ulmus wallichiana" subsp. "wallichiana" Melville & Heybroek was identified by Melville and Heybroek during their expedition to the Himalaya in 1960.
Description
A deciduous tree growing to 30 m with a crown comprising several ascending branches. The bark of the trunk is grey-brown, furrowed longitudinally. The leaves range from 6 to 13 cm long by 2.5 to 6 cm broad, elliptic-acuminate in shape, and with a glabrous upper surface, on petioles 5 to 10 mm long. The samarae are orbicular to obovate, 10 to 13 mm in diameter, the seed central.
Pests and diseases
The tree 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 beyond the Himalaya.
References
*Melville, R. & Heybroek, H. (1971). Elms of the Himalaya. "Kew Bulletin, Vol. 26 (1)". Kew, London.
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