ZONAL DISTRIBUTION OF PLANTS. 



405 



in the form of its leaves. Next is the fourth zone, made up here 

 chiefly of bullrushes (scirpus), and occasionally are clumps of the 

 cattail flag (typha). Behind this is the fifth zone, only to be 

 distinguished at this distance by the bright flower heads of the 

 boneset (Eupatorium perfoliatum) and joepye-weed (Eupato- 



Fig. 498- 

 Bank of joepye-weed, Eupatorium purpureum. (Photograph by author.) 



rium purpureum), and the blue vervain (Verbena hastata), which 

 occurs on the land. Willows make a compact and distinct sixth 

 zone, while at the right, shown in figure 496 taken alongside 

 this view, the oaks on the hillside beyond form a seventh zone, 

 and still farther back is a zone of white pines, making the 

 eighth. 



716. On the banks of a stream emptying into this end of the 

 lake, after pursuing its sinuous course through wooded flats, are 

 living pictures, which present a wealth of beauty in color and 

 harmony of association and environment, charming to behold 



