This section is from the book "Commercial Gardening Vol4", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
The Common British Elm or Aume attains a height of over 100 ft., and the trunk a girth of over 20 ft. The ovate-oblong leaves are 2-3 in. long and somewhat pointed. There are several varieties, including acwtifolia; Berardi, with smaller leaves and slender habit; betuloefolia; stricta, rigid; tortuosa, a peculiar twisted form; virens, the Kidbrook Elm, with almost evergreen foliage; variegata, leaves striped and blotched with white; and Louis Van Houtte, a golden-leaved form.
U. montana, the Scotch or Wych Elm, is similar to campestris and seems to be greatly confused with it, the varieties of one being often associated with those of the other. One of the best street trees, especially for seaside towns, is the Cornish Elm (cornubiensis), which has smaller and more deeply veined and more closely arranged leaves than the type. The variety fasiigiata, known as the Exeter or Ford's Elm, is pyramidal in habit with peculiarly twisted leaves; there is a golden-leaved form of it (aurea). The Chichester or Huntingdon Elm (vegeta) is a very rapid grower. The Downton Elm (pendula) is a smooth-leaved variety of campestris, with a drooping habit. There are several other elms grown under such names as Camperdowni; Dampieri aurea, a fine golden-leaved form; marmorata, with mottled leaves; Richardsoni; and Whitworthi. All special varieties are usually grafted on stocks of the Common Elm.