Graves, Arthur H. Formerly, Connecticut Agricultural Experiment Station, New Haven, Connecticut.
Davis, Kenneth P. Formerly, School of Forestry, Yale University, New Haven, Connecticut.
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A genus, Larix, of the pine family, with deciduous needles and short spurlike branches, which annually bear a crown of needles. The cones of the larch tree (see illustration) are small and persistent, varying by species in size, number, and form of the cone scales. The tamarack (L. laricina), also called hackmatack, is a native species. It has an erect, narrowly pyramidal habit (form) and grows in wet and moist soils in the northeastern United States, west to the Great Lakes region, and across Canada to Alaska. The cones are 0.5–0.75 in. (12.5–19 mm) in length. The tough resinous wood is durable in contact with soil and is used for railroad ties, posts, sills, and boats. Other uses include the manufacture of excelsior, cabinetwork, interior finish, and utility poles. See also: Pinales; Tree
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