1897.] The Swamps of Oswego County, N. Y. 699 



example: Kalmia glauca does not now occur in the Cayuga 

 Lake Basin, but it occurs in many of the moors to the east and 

 north, even appearing in the adjoining county, i. e., Cortland. 



THE ZONES OF A SWAMP. 



The character of the vegetation enables us to divide a com- 

 plete swamp into three natural zones: 



First, the lake in the center, which, although not a belt at 

 all, may, for convenience sake, be so designated. 



Second, the moor comprising the open area surrounding the 

 lake and generally grown over with sphagnum. There are no 

 shrubs or trees here capable of casting extensive shade. 



Third, the ivooded belt comprising the remainder of the 

 swamp. It varies in width, and in this particular region is 

 apt to be of considerable width north and south of the lake. 



In the maturing of the swamp these disappear in regular 

 succession from one to three. Local conditions bring about a 

 great variation in the relative extent of the several zones. At 

 Malloryville, Tompkins County, N. Y., is a swamp with a very 

 narrow wooded belt, due, no doubt, to the steepness of the 

 shores of the depression ; the lake here has been completely 

 filled up, so that we really have a moor surrounded by high 

 ground. The wooded belt is, however, a marked feature of 

 the swamps in Oswego County. 



( To be continued.) 



