574 MINNESOTA BOTANICAL STUDIES. 



Carduus muticus (Michx.) Pers. Syn. 2:386. 1807. 

 Moist meadows. August. No. 760. 



Carduus odoratus (Muhl.) Porter. Mem. Torr. Bot. Club 

 5:345. 1893-4. 

 Meadows. Cannon Falls. July. No. 268. 



Adopogon virginicum (L.) Kuntze. Rev. Gen. PI. 304. 1891. 

 Sandy ground. Cannon Falls; Park Rapids. July. Nos. 

 353, 1233. 



Hieracium canadense Michx. Fl. Bor. Am. 2:86. 1803. 

 Sandy soil. Grand Rapids. August. No. 723. 



Hieracium scabrum Michx. Fl. Bor. Am. 2:86. 1803. 

 Pine woods. Grand Rapids. August. No. 722. 



Nothocalais cuspidata (Pursh) Greene. Bull. Cal. Acad. (II) 

 2:55. 1886. 

 Sandy prairies. Fort Snelling. May. No. 49. 



Agoseris glauca (Pursh) Greene. Pitt. 2:176. 1891. 

 Prairies. Park Rapids. June. No. 1234. 



Taraxacum taraxacum (L.) Karst. Deutsch. Fl. 1138. 

 (1880-83.) 

 Minneapolis. May. No. 74. 



Lactuca spicata Lam. A. S. Hitchc. Trans. St. Louis Acad. 

 5:506. 1891. 

 Dry soil. Minneapolis; Aitkin county. August, September. 

 Nos. 951, 1007. 



Lactuca scariolaL. Sp. PL ed. 2. 1119. 1763. 

 Road sides. Minneapolis. September. No. 972. 



Prenanthes alba L. Sp. PL 798. 1753. 



Moist places. Crow Wing county. August. No. 856. 



Prenanthes racemosa Michx. Fl. Bor. Am. 2:84. 1803. 

 Copses. Minneapolis. September. No. 971. 



Sonchus oleraceus L. Sp. PL 794. 1753. 



Waste ground. Minneapolis. August. No. 993. 



Lygodesmia juncea (Pursh) Don. Edin. Phil. Jour. 6:311. 



1829. 

 Sandy soil. Minneapolis. July. No. 571. 



