44 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Melica Californica Scribn. Proc. Phila. Acad. 1885: 45 [Man. R. 



M. 420]. 



It is a rare plant within the region. Only one specimen has been 

 seen by me. 



Yellowstone Park: Mud Springs, 1871, Haxdcn. 



Catabrosa aquatica (L.) Beauv. Agrost. 157 [Man. R. M. 419: 111. 



Fl. I : 194] ; Ai'ra aquatica L. Sp. PL 64. 



An aquatic grass of no economic value, growing in streams at an 

 altitude of 1500-2500 m. 



Montana: Bozeman, 1885, Tzccedv, S77 - ^895, Shear, ^62; 

 Townsend, 401 : Black Hawk, 1896, Flodman, no; Sheep Creek, 



1896. Rydhcrg, JJ06 ; Elk Mountains, j^^/; Gallatin City, 1883, 

 Scribner, j8j ; Bozeman, 1887, Twcedv : Jack Creek, Jul}' 16, 



1897, Rydberg & Besscy, j6o8. 



Yellowstone Park : Gardiner River, 1885, Tzccedy, §-jj. 



Koeleria'cristata (L.) Pers. Syn. i : 97 [Man. R. M. 418: 111. Fl. 



I : 194 ; Bot Cal. 2 : 301] : Aii'a cristata L. Sp. PI. 63. 



One of the most valuable pasture grasses of the Great Plains and 

 the open foothills of the mountain region, attaining an altitude of 

 2500 m. 



Montana: Lima, 1895, Shear, j 18; Rydberg-, 2o6g; Manhat- 

 tan, Shear, 412; Dear Lodge, 373; Silver Bow, Rydberg-, 21 11; 

 Spanish Peaks, 1896, Flodman, lo^andioj; East Gallatin Swamps, 

 106; Great Falls, 1887, R. S. Williams; Spanish Basin, 1896, Ryd- 

 berg 302g, 303g, 3082, 3146; July 28, 1897, Rydberg & Bessey, 

 360'j ; East Gallatin Swamps, j/po; Elk Mts., 3262, 32^1, 32^4; 

 Yogo, 3413 ; Grasshopper Valley, 1880, Watson : Missoula Co., 3fi-s. 

 Kennedy; Lewis and Clarke Co., iMrs. Miith : Gallatin Cit3s 

 Smith River, 1883, Scribner, 380; Flathead Region, 18S3, //. B. 

 Ay res. 



Yellowstone Park: 1873, C C. Parry, 2Sg: 1884, Tzceedy, 

 260. 



Eatonia obtusata (Michx.) A. Gray, Man. Ed. 2,558 [Man. R. M. 



419: 111. Fl. i: 192; Bot. Cal. 2: 302] : Aira obtusata Michx. 



Fl. Bor. Am. i : 62. 



In meadows, especially among bushes, up to an altitude of 2000 m. 



Montana: Melrose, \'^<)^, Shear, 340; Manhattan, 43^; Giant 

 Springs, 1887, R. S. Willianis, 608; Little Belt Mts., 1896, Ryd- 



