68 



247. Colochortits NuttaUH, T. and G.— Higli plateaus, Wind River and 



Snake River ; July. 



248. Zygadenvs elegans, Fundi. — Sandy soil in timber, Warm Spring 



Creek ; August. 



Lemnace^e. 



249. Lemna gibbet, L. — On surface of warm springs near the mouth of 



Lewis's Fork of Snake River. 



Juncace^e. 



250. J uncus nodosum, L. — Wind River Valley; August. 



Cyperace^e. 



251. Carex Jamesii, Torr. — Tony's Fork and Snake River Basin. 



252. Carex atrata, L. — Bear Tooth Mountains, 9,250 feet and elsewhere 



at high elevations. 



Gr amine jk. 



253. Oryzopsis cuspidata, Benth. ( Eriocoma citspidata, Nutt.) — Gros Ven- 



tre and Snake River valleys ; August. 



254. Phlevm alpinum, L. — Bear Tooth Mountains; August 27; com- 



mon on good soil at high altitudes everywhere. 



255. Sporobolus (Yilfa) cryptandrus, Gray. — Along tributaries of Wind 



River and Gros Ventre ; August. 



256. Sporobulus asperifolius, Thurb. — Snake River and National Park; 



August 18. 



257. Trisetum siibspicatnm, Beau v. — Bear Tooth Mountains ; August 29- 



258. Kceleria cristata, Pers. — Wind River; July; Snake River; August - 



259. Catabrosa aquatica, Beauv. — North Fork of Wind River; July. 



260. Poa pratensis, L. — Tributaries of Wind River, Snake River Basin; 



August. t 



261. Poa tenuifoiia, Nutt. (var. !). — Bear Tooth Mountains; August. 



262. Poa andina, Nutt (var.), see Bot., Rep. Wheeler Surv., 1871-1875, 



p. 289. — Wind River; July; Bear Tooth Mountains, August. 



263. Poa ? (species uncertain). — Jackson's Lake; August. 



264. Poa ? (species uncertain, but differs from the above). — Bear 



Tooth Mountains; August 28. 



265. Poa cassia, Smith, var. striaHar y Gray .— Open places, Bear Tooth 



Mountains; August. 



266. Poapurpurascens,Vasey. — Bear Tooth Mountains; August. 



267. Alopecurus glmicus, L. (?). — Snake River Basin; August. 



268. Stipa comata, Trin. — Very common in valley of Clark's Fork; Au- 



gust. 



269. Stipa viridida, Trin. — Found with the above, but less common. 



270. Agrostis scabra, Willd. — Snake River Basin ; August. 



271. Phragmites communis* L. — Valley of Clark's Fork of the Yellow 



27U. 



stone; August. 

 Festv.ca rubra, L. — Snake Biver Basis ; common; August. 



