An Ecological Study of Buckeye Lake. 131 



Hibiscus ; also on masses of exposed peat in the lake. This 

 species with B. cernua and B. frondosa forms a veritable 

 golden carpet over masses of peat which come to the sur- 

 face in the lake. The Bidens is successful even before the 

 surface of the peat is wholly exposed They are generally as- 

 sociated with Echinochloa walteri. 



B. frondosa L. Near outer margin of marsh of the southern 

 lobe of Cranberry Island and on exposed masses of peat 

 in the lake. 



B. trichosperma (Mx.) Britt. Common in the shrub zone of the 

 southeastern border of Cranberry Island. 



B. trichosperma tenuiloba (A. Gr.) Britt. Local. At the margin 

 of a pool in the southeastern side of Cranberry Island. 



Achillea millefolium L. Generally distributed in edge of forest 

 zones and fields and on the levee. 



Erechtites hieracifolia (L.) Raf. Two plants found in the 

 thicket north side of Cranberry Island. Quite common along 

 the shore north of the island; also on Orchard Island. 



Arctium minus Schk. A common and widely distributed ruderal. 



Carduus lanceolatus L. ■ Occurs sparingly in the forest zone Or- 

 chard Island. 



The following is a list of plants which I have not found, nor 

 are there specimens of them in the State herbarium, b'ut they have 

 been reported for Buckeye Lake by* Herbert L. Jones in his cat- 

 alogue of Phanerogams and Ferns of Licking County. 



Aquilegia canadensis L. Rare. Reservoir and on the islands. 



Rosa setigera Michx. Borders of swamp. Reservoir. 



Cornus amonum Mill. (C sericea.) Along the banks of the 



Reservoir. 

 Viburnum lentago L. Common in the swamps. 

 Helenium autumnale. Not common. 

 Gerardia tenuifolia Vahl. Cranberry Marsh. 

 Alnus incana (L.) Willd. Cranberry Marsh. 

 Valisneria spiralis L. Abundant in Licking Reservoir. 



