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Ulmus × Intermedia 'Fremont'
The hybrid elm cultivar ''Ulmus × intermedia'' 'Fremont' is a little-known American hybrid cultivar propagated from a tree found on the Lloyd Moffet property (formerly the Plumfield Nurseries) at Fremont, Nebraska. The hybrid is believed to have arisen from a crossing of ''Ulmus pumila'' (female parent) and one of the spring-flowering elms native to North America,Dodge, A. F. (1960). ''Woody ornamental and shelter plants for the North Central Region 1954–1959: Five year report on regional plantings of Fremont Hybrid Elm''. USDA - ARS, Iowa State University, Ames, Iowa, USA probably ''Ulmus rubra''. The source tree was probably an unsold specimen of the Plumfield Nurseries' "Hybrid Elm", a cross between "Chinese elm" (as ''U. pumila'' was then called) and Red elm ''U. rubra'', briefly marketed from 1942 to 1943, but not appearing in later catalogues. This hybrid may have been the same as the cultivar sourced from Plumfield Nurseries at this time as "Hybrid Chinese Elm" and l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus × Intermedia
''Ulmus × intermedia'' Elowsky is a natural hybrid elm occurring across Nebraska and several other Midwestern states, derived from the crossing of ''Ulmus rubra'' and ''Ulmus pumila''. As Red Elm ''U. rubra'' is far less fertile, and highly susceptible to Dutch elm disease (:DED), it could eventually be hybridized out of existence by ''U. × intermedia''. Schlautman, B., Zalapa, J., & Brunet, J. (2012). Genotypic and phenotypic characterization of Ulmus pumila (Siberian elm), Ulmus rubra (Red elm) and their hybrids. ''Proc. Nebraska Acad. Sci. 2012''. 106–107. The hybrid was first reported from the wild in the Chicago region in 1950 and was provisionally named ''U.'' × ''notha'' Wilhelm & Ware in 1994. The horticulture industry made a number of artificial crosses of the two species, such as 'Coolshade' and 'Fremont', in an attempt to create ornamental trees resistant to DED. Description ''Ulmus × intermedia'' is significantly different from both parental species, exc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |