GEOLOGICAL SURVEY OF THE TERRITORIES. 771 



Acliillea MillefoUicm, L. — Near Ogden, Utah, May 30; very abundant 

 everywhere on the route. 



Matricaria discoidea, D. C. — Great Salt Lake, June 17. 



Artemisia dracitnculoides, Pursh. — Snake Eiver Valley, October ; Yel- 

 lowstone Elver, August 23. 



Artemisia tridentata, ISTutt. — Yellowstone Lake, August 23; Snake 

 Eiver Valley, July. The common form all over the West. 



Artemisia discolor, Dougl. — Snake Eiver Valley, October; Lower 

 Fire-Hole Basin, August. 



Artemisia Ludoviciana, jli'^'utt. — Weber Eiver, Utah, June. 



Artemisia Ludoviciana, Nutt., var. Douglasiana, D. C. Eaton. {A. 

 BougJasiana, T. and G.) — Yellowstone Lake, August; Market Lake, 

 Idaho, July. 



Artemisia Ludovidana, Nutt., var. latifolia^ T. and G. — Yellowstone 

 Lake, August 5 ; Port Neuf Canon, Idaho, July. 



Artemisia cana, Pursh. — Yellowstone Lake, August. 



Artemisia frigida, Nutt. — Near Fort Bridger, Wyoming, August, Dr. 

 Joseph Leidy. 



Gnaplialium luieo album, L., var. Sprengelii, J). C. Eaton. — White 

 Mountain Hot Springs, Montana, elevation 6,400 feet, July ; Geyser 

 Basin on Shoshone Lake, September. 



Giuqjhalium palustre, IS ntt. — Great Salt Lake, June. 



GnapJialiiim microcephalum, Nutt.— Shoshone Lake, September. 



Antemiaria margaritacea, E. Br. — Henry's Lake, Idaho, August 8. 



Antennaria Garpatliica, E. Br. — Shoshone Lake, September 6. 



Antennaria Garpailiica, E. Br., xox. pulclierrima, Hook. — Henry's Lake, 

 Idaho, August 8 ; Lower Fire-Hole Basin, September ; Teton Basin, 

 July 21. 



Antennaria alpina, Geertn. — Ogden Canon, Utah, June 15 ; Fort Hall, 

 Idaho, July ; Upper Geyser Basin, August. 



Antennaria dioica, Gtertn. — Yellowstone Eiver, August 22 ; Snake 

 Eiver Valley, July 30. 



Antennaria dioica, Gsertn., var. rosea, D. 0. Eaton. — Teton Basin, July 

 21. 



Antennaria racemosa, Hook. — Mountains near Henry's Lake, Idaho, 

 August 9. 



Arnica longifolia, D. C, Eaton. — Grand Canon of the Yellowstone, 

 August 22. 



Arnica augustifolia, Vahl. — Divide between Marsh and Malade Valleys, 

 June 29. 



Arnica Gliamissonis, Less. — Divide between Marsh and Malade Val- 

 ley's, June 29 ; swamps along Henry's Fork of Snake Eiver, August. 



Arnica latifolia, Bohgard. — Teton Mountains, elevation 10,000 feet, 

 July. 



Arnica cordifolia, Hook. — Ogden Caiion, Utah, June; Teton Basin, 

 July; Trail Eiver Mountains, September. 



Senecio liigens, Eichards. — Teton Mountains, elevation 10,000 feet, 

 July ; Yellowstone Lake, August. 



Senecio lugens, Eichards, var. HooTceri, D. C. Eaton. — Mountains near 

 Henry's Lake, Idaho, August. 



Senecio lugens, Eichards, var. exaltatus, D. 0. Eaton. — Lower Fire- 

 Hole Basin, August; Mountains near Ogden, Utah, June. 



Senecio hydrophilus, Nutt. — Henry's Lake, Idaho, August. 



Senecio triangula/ris. Hook. — Henry's Fork of Snake river, August; 

 Yellowstone Lake; Eed Mountain, elevation 10,000 feet, September; 

 Teton Eiver. 



