44 



FLOBA OF MOUNT RAINIER NATIONAL PARK. 



of Alaska spiraea and heather grows a small form of the pale laurel 

 not more than 2 to 4 inches high. It may be known by its saucer- 

 shaped pink flowers, with pouches for the stamens, and by its ovate 

 to lanceolate leaves, dark green above and whitish beneath. 



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THE FOURTH ZONE. 



The trees which reach timber line are the alpine fir, the alpine 

 hemlock, the Alaska cedar, and the white-barked pine. There are a 

 few gnarled specimens of the latter on the ridges west of Sluiskin 

 Falls, but the alpine fir, alpine hemlock, and Alaska cedar are the 

 common trees. The trailing juniper, Juniperus communis sibirica, 

 is common at timber fine and extends down far below, trailing over 

 rocky ledges. Its trailing habit, sharp foliage, and green berries 



