Alaska Woods. 189 



Balm of Gilead, Populus balsamifera. 



Black Cottonwood, " trichocarpa- 



Red Alder, Alnus oregona. 



Sitka Alder, " sitchensis. 



Feltleaf Willow, Salix alaxensis. 



Broadleaf Willow, " amplifolia. 



Dwarf Maple, Acer glabrum. 



Kenai Birch, Betula kenaica. 



White Birch, " alaskana. 



Western Yew, Taxus hrevifolia. 



Mountain Ash, Sorhus sambucifolio. 



On the Chugach are found : 



Sitka Spruce, Picea sitchensis. 



White Spruce, " canadensis. 



Black Spruce, " ntariana. 



Western Hemlock, Tsnga heterophylla. 



Black Hemlock, " mertensiana. 



Balm of Gilead, Populus balsamifera. 



Black Cottonwood, " trichocarpa. 



Aspen, " tremuloides. 



Yellow Cypress, Chanm^cyparis nootkatensis. 



Kenai Birch, Betula kenaica. 



White Birch, " alaskana^ 



Silky Willow, Salix sitchensis. 



Dwarf Juniper, Juniperus communis. 



Mountain Ash, Sorbus sambucifolia. 



Sitka Spruce. This species is the most valuable timber tree 

 within the coast forests. It occurs throughout the Tongass For- 

 est and a large portion of the Chugach Forest and the large 

 sizes attained together with its many other good qualities makes 

 it adaptable to a variety of uses. The wood is light when dry, 

 tough, soft, non-odorous, easily worked and takes a compara- 

 tively good finish. Although spruce is not a durable wood it 

 lasts well above ground and standing green timber is compara- 

 tively free from defect. There are, however, two or more 

 fungus diseases, the names of which have not been accurately 

 determined, that attack living trees and cause considerable de- 



