CHRISTMAS TREES 327 



having its needles in bundles of three from Pinus 



Fig. 42. — Female Cone of the Douglas Fir of North-West America 

 ( Or^on and Vancouver), Pseudotsuga DouglasiL Of the natural 

 size. — (From Veitch.) 



muricata, which has the more usual arrangement of a 

 pair of needles to each bundle. The Douglas fir is also 



