464 



PLANT DISTRIBUTION^ 



cent panorama of flowers (Figs. 131, 132), which varies 

 from month to month with the advance of the season. 

 The soil of parts of this region is among the most fertile to 



Fio. 120. — A View in the Soufhorn Rocky Mount ains in Colorado, 

 with western yellow pine in middle f?round, Douglas fir on the two 

 ridges, and a true fir between the ridges. Scrub oak occurs in right 

 foreground and on distant slope at left. Forests of this type are 

 characteristic of the higher, drier, and colder parts of the Western 

 Coniferous Forest. (Vestal.) 



Fk;, lao. \Vliit€ I'iiic iit the. Hinln-r r;ul ui ihi; .Suii;i .\uvj.da, 

 Central California. This is near the upper limits of trees. 



