IP s t e I s t a i8r 



of ordinary foliage leaves; seeds without resin 

 vesicles, winged. 



Three closely allied species, two of western 

 North America, one of Japan. 



Abies taxijoUa (Lambert) Poiret, Lamark. 

 Diet. 6:523. 1804. 



[Pseudotsuga taxijoUa (Lambert) Britton] Doug- 

 las Fir, Red Fir, Douglas Spruce. 

 A large tree with a massive trunk; leaves 

 1.5-3.5 centimeters long, flat, petiolate, usually 

 rounded and obtuse at the apex; cones oval- 

 cylindrical, 4-11 centimeters long, with woody, 

 broadly ovate scales, and much exserted, deeply 

 lobed bracts; seeds about 5 millimeters long,, 

 with narrow oblique wings about i centimeter 

 long. From central British Columbia and Alberta 

 southward to central California and along the 

 Rocky Mountains to Texas, Arizona and Mexico. 

 The Douglas fir is one of the largest forest 

 trees of America, being exceeded in height and 

 massiveness of stem only by the Sequoias. It 

 reaches its maximum development in western 

 Washington and southwestern British Columbia, 

 where trees of this species are often sixty meters. 



