162 



SANDUSKY FLORA. 



VERNONIA, Schreb. Iron-weed. 

 V. ALTISSIMA, Nutt. 



Common. Kelley's the only island. 



Y. ALTISSIMA GRANDIFLORA, Nutt. 



Huron, Willow Point, Kelley's Island ; infrequent. 



V. FASCICULATA, Michx. 



Prairies ; frequent. 



XANTHIUM, L. Cocklebur. 

 X. CANADENSE, Mill. 



Common. The so-called variety echinatum is the 

 common form near the Bay and Lake. 



