816 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



316. Artemisia Car/iadensis, Mx. 



1873. August. Mouse Eiver. On dry prairie. 



1874. July. Frenchman's Creek. 

 *317. Artemisia Douglasiana, Bers. 



318. Artemisia frigida, Willd. 



1874. July. Branch of Milk Eiver. 

 *319. Artemisia discolor, Doug. 

 *320. Artemisia dracuneuloideSj Pursh. 

 321, Artemisia Ludoviciana, Nutt. 



1813. September. Mouse Eiver. Dry prairie. One of the 



species known as " sage ". 

 1874. August. Milk Eiver. 

 *322. Gnaphaliwm polycephalum, Mx. 

 *323. Antennaria alpina,, Gaertn. 

 *324. Antennaria dioica, var. rosea, Gaertn. 

 *325. Antennaria plantaginifolia, Hook. 

 '■^326. Arnica angustifolia, Vahl. 

 *327. Arnica longifolia, Eaton. 

 *328. Arnica Menziesii, Hook. 

 *329. Amida hirsuta, Nutt. 

 330. Senecio aureus, L. 



1874. August. Eocky Mountains. 

 330^. Senecio aureus, L., var. Balsamitce. 

 1873. July. Pembina. 

 *331. Senecio canus, Hook. 

 *332. Senecio Fremontii, T. & G. 

 333. Senecio eremophilus, Hook. 

 1873. August. Prairie. 

 *334. Senecio lugens, Eich. 

 *335. Senecio resedifolius, Lessiug. 

 *336. Senecio triangularis, Hook. 

 *337. Cirsium altissimum, Spring. 

 *338. Cirsium undulatum, Spring. 



1873. September. Missouri Coteau. 



1874. June. Plains near Fort Buford. 

 *339. Cirsium muticum, Mx. 



340. Troximon glaucum, Nutt. 



1874. July. Along Missouri Eiver. 

 340^. Troximon glaucum, Nutt., var. 



In company with the typical form. 



341. Troximon cuspidatum, Pursh. 



1873. July. Pembina and westward, on prairies. 

 *342. Steplianomeria minor, Nutt. 

 343. Hieracium Canadense, Mx. 



1873. July. Pembina, in thickets. 



1874. August. Along branch of Milk Eiver. 



