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Ulmus americana 'Deadfree'

The American Elm cultivar Ulmus americana 'Deadfree' (originally known simply as '76') was listed by the Urban Forestry Administration (UFA) of the District Department of Transportation in Washington, D.C., as one of its "street trees" in 2008.[1] However, the UFA currently has no documentation to support it, and thus the entry may be spurious.

Ulmus americana 'Deadfree'
SpeciesUlmus americana
Cultivar'Deadfree'
OriginUS

The tree is almost certainly synonymous with 'DED-FREE', a tree at the Arnold Arboretum, Harvard University, obtained from the Princeton Nursery, Princeton, New Jersey in 1973, cloned from the only survivor (late 1940s) among a grove of elms following natural devastation by Dutch elm disease, and subsequently proved resistant by artificial inoculations. However, the tree was neither offered for public sale nor distribution.

The name was never validly published and the originator has suggested that it not be validated.[2]

References edit

  1. ^ . District Department of Transportation. Archived from the original on 16 July 2010. Retrieved 20 June 2016.
  2. ^ Santamour, Frank S.; Bentz, Susan E. (May 1995). "Updated Checklist of Elm (Ulmus) Cultivars for use in North America". Journal of Arboriculture. 21 (3): 122–131. Retrieved 20 June 2016.



ulmus, americana, deadfree, american, cultivar, originally, known, simply, listed, urban, forestry, administration, district, department, transportation, washington, street, trees, 2008, however, currently, documentation, support, thus, entry, spurious, specie. The American Elm cultivar Ulmus americana Deadfree originally known simply as 76 was listed by the Urban Forestry Administration UFA of the District Department of Transportation in Washington D C as one of its street trees in 2008 1 However the UFA currently has no documentation to support it and thus the entry may be spurious Ulmus americana Deadfree SpeciesUlmus americanaCultivar Deadfree OriginUS The tree is almost certainly synonymous with DED FREE a tree at the Arnold Arboretum Harvard University obtained from the Princeton Nursery Princeton New Jersey in 1973 cloned from the only survivor late 1940s among a grove of elms following natural devastation by Dutch elm disease and subsequently proved resistant by artificial inoculations However the tree was neither offered for public sale nor distribution The name was never validly published and the originator has suggested that it not be validated 2 References edit Urban Forestry Administration District Department of Transportation Archived from the original on 16 July 2010 Retrieved 20 June 2016 Santamour Frank S Bentz Susan E May 1995 Updated Checklist of Elm Ulmus Cultivars for use in North America Journal of Arboriculture 21 3 122 131 Retrieved 20 June 2016 nbsp This Ulmaceae article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Ulmus americana 27Deadfree 27 amp oldid 1013864938, wikipedia, wiki, book, books, library,

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