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Ulmus 'Virens'
The cultivar ''Ulmus'' 'Virens', the Kidbrook Elm, is an elm of unknown origin. It was first identified by William Masters (botanist), Masters as ''U. virens'' i''Hortus Duroverni'' 67, 1831 and later by John Claudius Loudon, Loudon i''Arboretum et Fruticetum Britannicum'', 3: 1376, 1838 as ''U. campestris (: minor) virens''. Described in some detail by Henry John Elwes, Elwes & Augustine Henry, Henry (1913) as a form of Field Elm but classified as Ulmus × hollandica, ''U.'' × ''hollandica'' by Peter Shaw Green, Green, the tree is not mentioned in William Jackson Bean, Bean's classic works on British trees.Bean, W. J. (1981). ''Trees and shrubs hardy in Great Britain'', 7th edition. Murray, England. Description The tree is distinguished by an upspreading crown, in mild winters retaining its foliage into December (Loudon called it "almost evergreen"). The leaves are oval, < 10 cm long by < 5 cm wide, long leaf shape, acuminate at the apex, and coarsely biserrate; the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cultivar
A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, micropropagation, tissue culture, or carefully controlled seed production. Most cultivars arise from deliberate human genetic engineering, manipulation, but some originate from wild plants that have distinctive characteristics. Cultivar names are chosen according to rules of the International Code of Nomenclature for Cultivated Plants (ICNCP), and not all cultivated plants qualify as cultivars. Horticulturists generally believe the word ''cultivar''''Cultivar'' () has two meanings, as explained in ''#Formal definition, Formal definition'': it is a classification category and a taxonomic unit within the category. When referring to a taxon, the word does not apply to an individual plant but to all plants t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
