192 Wyoming Experiment Station. 



Agrostis exarata, Trin. Unifl. 207 (1824). 



Head of Rawhide Creek, August 1892. 

 Agrostis humilis, \'asey, Bull. Torr. Club, x, 21. 



Alpine, in wet soil; La Platta Mines, August 23, 1895 (No. 1814). 

 Agrostis scabra, Willd. Sp. PL i, 370 (1798). 



Frequent; Big Sandy, July, 1892; Albany county, September, 

 1891. 

 Calamagrostis Canadensis, Beauv. Agrost. 15 (1812). 



Wind River Mountains, July, 1892. 

 Calamagrostis confinis, Nutt. Gen. i, 47 (1818). 



Common ; Centennial Valley, September 7, 1891 ; Laramie, 

 September 30, 1894 (No. 1179). 

 Calamagrostis longifolia, Hook. Fl. Bor. Am. 241 (1840). Calamo- 

 vilfa lo7igifolia, (Hook.) Hack. 



Frequent; Lander, July, 1892; Whalen Canon, July 9, 1894 

 (No. 536). 

 Calamagrostis Montanensis, Scribn. 

 Sheridan county, August, 1892. 

 Calamagrotis neglecta, (Ehrh.) Ga?rtn. Fl. Wett. i. 94 (1799). 



Frequent; Big Horn Mountains, August, 1892; Orin Junction, 

 August 14, 1891. 

 Calamagrostis pallida, Vasey & Scribn. 



Eagle Rock Canon, September 22, 1891 ; also from Carbon 

 county. 

 Calamagrostis purpurascens, R. Br., in Rich. Bot. App. Frank. Voy. 3. 



Infrequent; Laramie Peak, August 7. 1895 (No. 1627). 

 Deschampsia csespitosa, Beauv. Agrost. 160, t. 18, f. 3 (1812). 



Common in the mountains; Big Sandy, July, 1892; La Plata 

 Mines, August 23, 1895 (No. 1815). 

 Deschampsia caespitosa arctica, Vasey. 



Rare ; Laramie Hills, June 12. 1894 (No. 238). 

 Trisetum subspicatum, Beauv. Agrost. 180 (1812). » 



Very abundant in the mountains; Big Sandy, July, 1892; 

 La Plata Mines, August 22, 1895 (No. 1783). 

 Trisetum subspicatum molle. Gray, Man. Ed. 2, 572 (1856). 



La Plata, Medicine Bow Mountains, August 23, 18«5 (No. 1807). 

 Trisetum Wolfli, Vasey. 



Fort Laramie, September 6, 1892, B. C. Buffum. 



