155 



CALENDULA, L. Marigold. 



C. officinalis, L. Garden Marigold. 



Sandusky and Put-in-Bay ; spreading and escap- 

 ing, but seldom far from gardens. Hardly 

 naturalized. 



CENTAUREA, L. 



C. cyanus, L. Blue-bottle. Corn-flower. 



Kelley's Island and elsewhere; sparingly escaped. 



CHRYSANTHEMUM, L. 



C. balsamita, L. Costmary. 



Escaped from gardens in several places. 



C. leucanthemum, L. Ox-eye or White Daisy. White- 

 weed. 

 Common in several places but not generally dis- 

 tributed. Put-in-Bay. 



C. parthenium, Bernh. Feverfew. 



Escaped to waste places in Sandusky and well es- 

 tablished in woods on Put-in-Bay. 



CNICUS, L. 

 C. ALTISSIMUS, Willd. 



Infrequent. Kelley's Island. 

 C. arvensis, Hoffm. Canada Thistle. 



Frequent, especially near the Lake and Bay, 



Islands, 

 C. DISCOLOR, Muhl. 



Frequent. 

 C. lanceolatus, Willd. Common Thistle. 



Common. 

 C. MUTicus, Ell. Swamp Thistle. 



Infrequent. 



COREOPSIS, L. Tickseed. 



C. ARiSTOSA, Michx. 



Castalia and Venice marshes; common. Cedar 

 Point, Catawba, Vermillion ; frequent. 



