6o MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



* Bromus brizaeformis Fisch. & Mey. Ind. Sem. Hort. Petrop, 3 : 30 



[111. Fl. I : 223]. 



An introduced plant characterized by its flat spikelets and short 

 and broad awnless glumes. 



Montana: 1883, Scrihuer^ 41'/. 



* Bromus Pumpellianus Scribner, Bull. Torr. Bot. Club, 15: 9. 



This is distinguished bv the erect branches of the panicle, large 

 brownish or purplish spikelets and the auricled bases of the leaf- 

 blades. It is common on bench lands and in dryer valleys to an 

 altitude of 2500 m. 



Montana: Little Belt ]Mts., i8g6, J^/odnian, 20J and 204: Tiger 

 Butte, 1886, 7?. S. Williams, jj2 ; 1883, Scrihncr, 418: Gallatin 

 Co., 1886, Tweedy, 1002 ; Dry Fork of Belt Creek, 1896, Rydherg, 

 3356 and JJ62; Little Belt Mts., jjSj : Elk Mountains, J2yi ; Flat- 

 head Valley, 1883, Canhv, j8j. 



Yellowstone Park: 1885, Tweedy, ^Sj : ElecLi-ic Peak, Aug. 

 18, 1897, Rydhero- cf- Bessey. 36S7. 



* Bromus Pumpellianus Tweedyi Scribner, Bull. U. S. Dept. Agric. 



Div. Agrost. 5 : 37. 



Culm stout, 2 feet high ; leaves short ; panicle dense : spikelets 

 small ; flowering glumes very villous. 



Montana: Lima, 1885, Shear, j6S : Rvdhei-g, 2J04. 



Yellowstone Park: 1885, Tvjeedx, jiS; Soda Butte, 1885, 

 J87. 



Bromus breviaristatus (Hook.) Buckl. Proc. Acad. Phila. 1862 : 98 



[Man. R. iNI. 425 ; 111. Fl. I : 223] ; Ceratochloa breviaristata 



Hook. Fl. Bor. Am. 2: 253 [Bot. Cal. 2: 321]. 



Common in dr3^er valle3's, on bench lands and hillsides up to an 

 altitude of 2200 m. 



Montana: Deer Lodge, 1895, Shear, J78: Rvdberg, 21 ig; 

 Lima, 2J14: Shear, j6g: Bozeman, 44^ and 4j6 ; Rxdberg, 221 j, 

 22jjy2 and 2247; Manhattan, Shear, 413 ; Bridger Mountains, i8q6, 

 Flodman, ig6; Sheep Creek, 188: Belt Canon, 1887, R. S. Wil- 

 liams, 604; Alhambra, 1888, Kelsey ; Gallatin Co., 1886, Tweedy, 

 1000; Bozeman, iS()6, Rydberg, jooo and joo6: Spanish Basin, 

 J028, jojy,jio4, Jiog, Jijj ; East Gallatin Swamps, Ji/i : Bridger 

 Pass, J279; Castle, j^j^ and j^5p ; Dr}^ Fork of Belt Creek, jjjj,- 

 Spanish Basin, July 23, 1897, Rydberg & Bessey, j6Sja and j688 ; 



