An Ecological Study of Buckeye Lake. 125 



F. nigra Marsh. In situations similar to that in which F. Ameri- 

 cana occurs but not so abundant. 



Gentianaceae. 



Bartonia virginica (L.) B. S. P. Very abundant in and character- 

 istic of the bog thicket and forest of Cranberry and Sphag- 

 num-bog Islands. 



Menyanthaceae. 



Menyanthes trifoliata L. Abundantly distributed thru the thicket 

 and places of high water level in bog-meadow of Cranberry 

 and Sphagnum-bog Islands. 



Apocynaceae. 



Apocynum cannabinum L. ]\Iarsh border of forest zone, Lewis 

 Island. 



Asclepiadaceae. 



Asclepias incarnata L. General in swamp woods of the shores, 



forested and bog islands. 

 A. syriaca L. Ruderal zone Lieb's Island. 



Convolvulaceae. 



Convolvulus sepium L. Common and generally distributed, 

 abundant in open margin of Cranberry Island. 



Cuscutaceae. 



Cuscuta gronovii W'illd. Abundant and widely distributed on 

 Impatiens biflora, Decodon verticillatus and other hosts at 

 the margin of many of the swamp islands. 



Polemoniaceae. 



Phlox paniculata L. Roadside, Shell beach. 



P. divaricata L. General in woods of shores and several of the 

 islands. 



