FLORA OP BURLINGTON AND VICINITY 93 



XANTHIUM (Tourn.) L. Cocklebur. Clotbur 



X. ciiiiadeiise Mill. Lake shores and river banks; frequent. Aug., 

 Sept. 



X. coiumuue Britton. Shores of Lake Champlain; common. Aug., 

 Sept. 



X, echiiiatuin Murr. Lake shores and river banks; common. Aug., 

 Sept. 



