OF DENISON UNIVERSITY. 53 



194. Senecio Tourn. 



416. S. lobatus Pers. Butter-weed. 

 Herbarium of Prof. W. G. Tight. May 26, 1887. 



417. S. aureus L. Golden Ragwort. 



Rocky banks, somewhat common. May 27, 1887; May 11, 1889. 



418. S. aureus L. Var. obovatus Torr. and Gray. 



Same situations but more common than type. May 6, 1887; 

 April 15, 1890; April 20, 1891. 



419. S. aureus L. Var. Balsamitae Torr. and Gray. 



This has been reported several times as occuring in the county 

 but as I know of no herbarium specimens, it is only inserted here 

 with this explanation. 



195. Cacalia L. 



420. C. reniformis Muhl. Great Indian Plaintain. 

 Woods, somewhat common; Toboso. August 23, 1890. 



421. C. atriplicifolia L. Pale Indian Plaintain. 



Woods and rocky bands, common. September 5, 1888; August 

 23, 1890. 



196. Erechtites Raf. 



422. E. hieracifolia Raf. Fireweed. 



Waste places, common. August 20, 1888; August ir, 1890. 



197. Arctium L. 



423. A. Lappa L. Burdock. 



Waste places everywhere. July 21, 1887; July 17, 1890; July 2, 

 1891. 



198. Cnicus Tourn. 



424. C. lanceolatus Hoffm. 



Pastures and fields everywhere. August 4, 1888; July 6, 1888; 

 August 10, 1889; August 31, 1890; August 2, 1891. 



425. C. altissimus Willd. 



Fields, rare; Alexandria. August 13, 1890. 



426. C. altissimus Willd. Var. discolor Gray. 

 Fields, rare; Clay Lick. August 25, 1890. 



427. C. muticus Pursh. Swamp Thistle. 



Swamps, somewhat common; Everett's Swamp. August 15, 

 j887; September 29, 1890. 



