Publisher's Synopsis
Excerpt from The Leaf Spots of the Elm: Thesis
About eighteen species of the genus Ulmus are known widely distributed throughout the cold and temperate regions of the Northern Hemisphere. Six of these species, U. Americana, U. Fulva, U. Racemosa, U. Alata, U. Serotina, and U. Crassz'folz'a, are native to America and occur naturally from Labrador to southern Mexico. None, however, occur west of the Rocky Mountains. U. Alata, U. Crassifolia, and U. Serotz'na are tender and do not grow well in the northern states, but are quite extensively used for lawn and avenue trees in the south. U. Americana, the most widely distributed American species, occurs in practically every state east of the Rocky Mountains, and in Canada. It is the most characteristic tree of the northeastern states, and is very widely used for street planting and as an ornamental tree for lawns.
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