Stránka:book 1922.djvu/413

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Forestry

Alder or Smooth Alder, Tag Alder. {Alnus serrulata) This is the bush so well known in thickets along the Northern streams. It is usually under 20 feet in height, but sometimes reaches 40. Its wood is soft, light brown and useless, a cubic foot weighs 29 lbs. Leaves 3 to 5 inches long. Its inner bark yields a rich orange dye. A tea made of the leaves is a valuable tonic and skin wash for pimples. In wet places or on hillsides. Besides serrulata there are four alders in our limits, the Mountain Alder {A . alnobetula) with downy twigs, smooth leaves broad but pointed,