MEMOIRS OF THE NEW VORK BOTANICAL GARDEN. 4I 



Yellowstone Park: Slough Creek, 1885, Tweedy, jg6 and 

 jgy; 1884, 26g. 



Spartina cynosuroides (L.) Willd. Enum. 80 [Man. R. M. 405 ; 



111. Fl. i: 175; Bot. Cal. 2: 290]; Dactylis cynosuroides L. 



Sp. PI. 71. 



Along edges of ponds and streams and in swamp lands of the Great 

 Plains, extending in the valleys to an altitude of 1600 m. 



Montana: Logan, 1895, Shear, 523; Rvdbcrg; 2283; East Gal- 

 latin Swamps, 1896, Flodinau, loi ; Helena, 1891, Kelsey ; Town- 

 send, 1883, Scribiicr, Jjo; East Gallatin Swamps, 1896, Rydherg, 

 3200. 



Spartina gracilis Trin. Mem. Acad. St. Petersb. (VI.) 6: no 

 [Man. R. M. 405 ; 111. Fl. i : 176; Bot. Cal. 2: 290]. 

 In wet meadows, especially in saline soils, up to an altitude of 1600 

 m. It is a species belonging to the Great Plains rather than the 

 nnountain region. 



Montana: Manhattan, 1895, Shear, ^^6; Rydberg, 2204; Town- 

 send, Shear, 3g2 ; Rydberg, 2132; Dillon, Shear, 333; Rydberg-, 

 20S0; East Gallatin Swamps, 1896, RIodiiiau, 102; Great Falls, 

 1886, R. S. WiUiaiiis, 33S; Teton River, 1883, Seribner, 32^; 

 Crow Creek Valley, j'i'p; East Gallatin Swamps, 1896, Rydberg, 



3194- 



Yellowstone Park: Upper and Lower Geyser Basin, Coulter; 



Lower Geyser Basin, Aug. 4, 1897, Rydberg & Dessey, 3606. 



Beckmannia erucaeformis (L.) Host, Gram. Austr. 3:5 [Man. R. 



M. 403 ; 111. Fl. i: 181; Bot. Cal. 2: 264]; Phalaris erucae- 

 formis L. Sp. PI. 55. 



A good hay-grass, growing in low ground and ascending to an 

 altitude of 2000 m. 



Montana: Townsend, Shear, 38^; Rydberg, 2i6g; Red Rock, 

 Shear, 32 y; Deer Lodge, Rydberg, 2134: East Gallatin Swamps, 

 1896, Flodman, gg ; Centerville, 1883, Seribner, 32-/; Bozeman, 

 1884, Tzveedy, 280; Madison Valley, 1871, Hayden; East Gallatin 

 ■Swamps, 1896, Rydberg, 31 yj ; Castle, j^^(5,- Madison Co., Mrs. 

 McXu/ty. 



Yellowstone Park: Stinking Water, 1873, C. C. Parry, 2g6. 



Bouteloua oligostachya (Nutt. ) Torr. ; A. Gray, Man. Ed. 2, 553 

 [Man. R. M. 416 ; 111. Fl. i : 180 ; Bot. Cal. 2 : 291] ; Atheropogon 

 ■oligostachyus Nutt. Gen. i : 78. 



