• WordNet 3.6
    • n Ulmus type genus of family Ulmaceae; deciduous trees having simple serrate leaves; widely distributed in temperate regions
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Webster's Revised Unabridged Dictionary
    • n Ulmus (Bot) A genus of trees including the elm.
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Century Dictionary and Cyclopedia
    • n ulmus A genus of trees, the elms, type of the tribe Ulmeæ in the order Urticaceæ. It is characterized by a stalked fruit surrounded with a broad wing, and containing flat cotyledons. There are about 16 species, widely scattered through the north temperate regions, extending in Asia to mountains within the tropics. They bear alternate serrate two-ranked feather-veined leaves on slender and often recurving branches which form a graceful flat spray. The flower-clusters contain numerous small apetalous flowers, almost all perfect or mainly staminate, in 4 North American species preceding the leaves, and followed by disklike notched and veiny samaras, which fall as the leaves expand. (See cut under samara.) Several other species are evergreen and late-flowering, as U. parvifolia of China and Japan. Five species occur in the United States (for which see elm, slippery-elm, rock-elm, and wahoo). Three species occur in Europe, all of them extending into Asia—U. campestris, the common Old World elm (see cut under elm), parent of very numerous cultivated varieties; U. effusa (U. pedunculata), the water-elm of central Europe; and U. montana, the wych-elm, the only one thought to be native to Great Britain. U. Americana, U. effusa, and also U. Wallichiana, the Himalayan elm, sometimes reach a very large size, from 90 to 100 feet high, and 7 to 8 feet in diameter. U. pumila, the dwarf elm of Siberia, a very low shrub, forms the other extreme of the genus. U. effusa, the common village elm of Prussia, is peculiar in forming sharp ribs about its base in old age, which serve as natural buttresses.
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Chambers's Twentieth Century Dictionary
    • Ulmus the genus of the elms
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Webster's Revised Unabridged Dictionary
L., an elm
Chambers's Twentieth Century Dictionary
L. ulmus, an elm.


In literature:

The broad-leaved or wych elm (Ulmus montana), indigenous to Scotland.
"The Lady of the Lake" by Sir Walter Scott
Ulmus polygama, L C. Richard in Mem.
"Scientific American Supplement, No. 417" by Various
I noticed in addition Ulmus and Quercus.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
Ulmus (Elm) americana pendula.
"Trees and Shrubs for English Gardens" by Ernest Thomas Cook
Reported on Ulmus, Prosopis, Quercus, etc.
"Texas Honey Plants" by C. E. Sanborn

In news:

No—it's the American elm ( Ulmus americana ), a native tree with a life story that rivals any Hollywood saga.