HARDY CONIFEROUS TREES 163 



PSEUDOTSUGA, Carriere 



THE DOUGLAS FIRS 



Male flowers like those of Picea. 



Cones pendent, persistent, ripening the first year. 



Scales persistent. 



Bracts long, two- or three-pointed. 



Cotyledons var^^ng in number from five to twelve. 



Leaves stiff, flattish, bright green, and more or less acuminate. 



Branches whorled ; bark on young shoots glabrous. 



This genus was founded for the Douglas Fir, the habit 

 and fohage being nearly that of the Silver Firs, and the male 

 flowers like those of Picea. 



PsEUDOTSUGA DouGLASii, Carriere, The 

 Douglas Fir. (Synonyms : Abies taxifolia, Poiret ; 

 Pinus taxifolia, Lambert] Pinus Douglasii, Sabine ; 

 Pseudotsuga taxifolia, Britton ; x\bies Douglasii, 

 Lindley ; Picea Douglasii, Link ; Tsuga Douglasii, 

 Carriere.) British Columbia to Colorado, Texas 

 and Mexico. 1827. — Whether planted singly or 

 in clumps, this tree is highly effective, the giant 

 proportions, easy and graceful outhne, and thickly 

 foliaged branches, of the deepest and richest green, 

 being special points of attraction. Although per- 

 fectly hardy ever^^where in this country, yet the 

 Douglas Fir cannot stand exposure to hard-blo\\ing 

 winds, the leader and upper branches under such 

 conditions suffering greatly, and in many instances 

 becoming almost destitute of fohage. The pro- 

 duction of timber goes on at a rapid rate, and in 

 this respect the tree is surpassed by no other grown 

 in this country, fully 5 cubic feet per year ha\'ing 

 been produced over a period of fifty years. The 

 timber, too, is of good quality, and the results of 



