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The American Elm cultivar Ulmus americana 'Iowa State' was cloned in the 1980s from a tree discovered by Professor Alexander (Sandy) McNabb of Iowa State University as the sole survivor in 40 acres (16 ha) of diseased elm at Burlington.
Most of North America's notable elms are Ulmus americana, a fast-growing and long-lived species capable of attaining great size in a few centuries, especially when open-grown. [1] American Forests , a non-profit conservation organization, uses the following formula to calculate a point score for each tree to permit comparisons with others:
The starting-points for List of elm cultivars, hybrids and hybrid cultivars were fourfold: (1) Green's 'Registration of Cultivar Names in Ulmus ' (1964), [1] based on the contemporary nomenclature of elm species and wild hybrids; (2) Krüssmann's confirmation or correction of cultivar-names in his monumental Handbuch der Laubgehölze (1976); [2] (3) Heybroek's table of Netherlands research ...
Elms are deciduous and semi-deciduous trees comprising the genus Ulmus in the family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical - montane regions of North America and Eurasia, presently ranging southward in the Middle East to Lebanon and Israel, [ 1 ] and across the Equator in the ...
American elms along The Mall and Literary Walk, Central Park (2013) New York City's Central Park is home to approximately 1,200 American elms. The oldest of these elms were planted during the 1860s by Frederick Law Olmsted, making them among the oldest stands of American elms in the world. The trees are particularly noteworthy along the Mall ...
This is an incomplete list of U.S. college nicknames.. If two nicknames are given, the first is for men's teams and the second for women's teams, unless otherwise noted. ...
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The type of institution, such as "University" or "College," may be dropped, or some component of it abbreviated, such as "Tech" in place of "Institute of Technology" or "Technological University." The same nickname may apply to multiple institutions, especially in different regions.