174 Tennessee Flora. 



S. lobatus Pers. r>iitter weed. Wet places. Brownsville. 

 Laverqne. April. ]\Iay. 



S. vulgaris L. Knoxville. Erratic. 



S. Rugelia Gray. Smoky Mts. Legit Dr. Rugel. 



S. Earlei T- K. Small. Knoxville. Professor Ruth. May- 

 Julv. 



ARCTIUM L. 



Arctium Lappa L. Burdock. Waste grounds. O. S. 

 July, August. 



A. minus Selik. Cumberland Gap. J. K. Small. 



I CARDUUS L. 



Carduus lanceolatus L. Crisium lanceolatum Scop. Com- 

 mon thistle. O. S. July, August. 



C. altissimus L. Cnicus altissimus Willd. Fence rows. 

 O. S. Not as frequent as the former. July-November. 



C. discolor (Miihl.) Nutt. Cnicus altissimus var. discolor. 

 A. Gray. Banks of Cumberland River l^elow Nashville. 

 July-November. 



C. muticus (Michx.) Pers. Lookout Mt. Roane Mt. 

 Chickering. July. 



MARIANA Hill. (Silybum Ga-rt.) 



Mariana Mariana (L.) Hill. Silybum Marianum G?ert. 

 Milk thistle. Near Tracy City. Mrs. Turner. Nashville, 

 near Chattanooga shops. June-August. 



ONOPORDON L. 



Onopordon Acanthium L. Cotton thistle. Dry pastures 

 and roadsides around Nashville. July-September. 



CENTAUREA L. 



Centaurea Cyanus L. Blue bottle. Corn flower. Waste 

 places. Escaped from cultivation. 



CNICUS L. 



Cnicus benedictus L. Blessed thistle. Centaurea benedicta 

 L. Waste ground around Livingston Hall, Nashville. Mrs. 

 Lvdia Bennett. May-August. 



