786 GEOLOGICAL SURVEY OF THE TERRITORIES. 



Vilfa airoides^ Trin. — Grreat Salt Lake, June; hot springs, ten miles 

 from Ogden, Utah ; Marsh Valley, Idaho. 



VUfa asjjerifoUa, Nees. and Meyer. — Port jSTeuf Yalley, Idaho, July ; 

 common in both Geyser Basins, August 5 Twin Buttes on Henry's Fork 

 of Snake Eiver. 



Vilfa depauperata, Torr. — Blackfoot Eiver, Idaho, July ; Henry's Fork 

 of Snake Eiver ; Upper Geyser Basin, August. 



Agrostis perennans, Gr. — Lower Geyser Basin, August. 



Agrostis scabra, Willd. — Snake Eiver Valley, July; Lower Geyser 

 Basin, August ; Jackson's Lake, September. 



Agrostis cxarata., Trin. — Teton Mountains, elevation 10,000 feet, July. 



Agrostis canina, L., var. alpina, Oakes. — Growing in the spray of the 

 Grand Falls of the Yellowstone, August. 



Cinna arundi)iacea, L. — Union Pass, Gallatin Eiver, September. 



Yaseya comata, Thurber. — Upper Geyser Basin, August. 



Calamagrostis Canadensis, Beauv. — Henry's Fork of Snake Eiver, 

 July ; Teton foot-hills, August. 



Calamagrostis Langsdorffii, Trin. — Henry's Fork of Snake Eiver, July. 



Calamagrostis stricta, Trin. — Uintah Mountains, Wyoming, August, 

 1872, Br. Joseph Leidy ; Teton Basin, August ; Henry's Fork of Snake 

 Eiver, July. 



Calamagrostis sylvatiea, D. C. — Teton Basin, July ; Henry's Lake, 

 Idaho ; August ; Teton Eange. 



Eriocoma cuspidata, Nutt. — Plains near Ogden, Utah, June ; Snake 

 Eiver Valley, July ; Upper Canon of the Madison, August. A valua- 

 ble " bunch-grass." 



Stipa spartea, Trin. — Near Brighara City, Utah, June; Fort Hall, 

 Idaho, July. 



StijKi comata, Trin. — Snake Eiver Plains, July. 



Stipa viridula, Trin. — Henry's Fork of Snake River, July, 



Bouteloiia oligostachya, Torr. — Union Pass, Gallatin Eiver, September. 



Spartina gracilis, Trin. — Snake Eiver Valley, July ; found in both 

 Geyser Basins, August. 



Kceleria cristata, Pers. — Plains near Ogden, Utah, June ; Marsh 

 Valley, Idaho ; Teton foot-hills, July ; Upper Canon of the Madison, 

 August. 



Eatonia ohtusata, Gray. — Port Neuf CaSon, Idaho, July. 



Melica hulbosa, Geyer. (Gray, in Proc. Am. Acad., May, 1872.) The 

 M. poceoides of Whipple's Eep. and Bolander, but not of Nuttall. — Near 

 Ogden, Utah, June ; Snake Eiver Valley, July ; Upper Teton Caiion. 



Melica stricta, Boland. — Eed Mountain, elevation 10,000 feet, Septem- 

 ber. 



Glyceria oiervata, Trim. — Port Neuf Valley, Idaho, July ; Shoshone 

 Lake, September. 



Glyceria pauciflora, Presl. — Snake Eiver Valley, July. 

 Glyceria distans, Wahl. — Upper Geyser Basin, August. 



Brizopyrum spicatum, Hook. — Great Salt Lake, June ; hot springs, 

 ten miles from Ogden, Utah ; Snake Eiver Valley, July. 



Poa alpina, L. — Teton Eange, elevation 10,000 feet, July. 



Poa Eatoni, S. Watson. — Near Great Salt Lake, Utah, June. 



Poa Kingii, S. Watson. — Near Great Salt Lake, Utah, June ; Teton 

 Eange. 



Poa tenuifolia, Nutt. — Uintah Mountains, Wyoming, August, 1872. 

 Br Joseph Beidy. 

 Atropis Cali/ornica, Munro. — Malade Valley, Utah, June. 



Festuca tenella, Willd. — Plains near Ogden, Utah, June. 



