MEMOIRS OF THE NEW YORK BOTANICAL GARDEN, 



29 



Yellowstone Park: 1884, Tweedy, 2^g and 2^0; East De 

 Lacy's Creek, Aug. 10, 1897, Rydberg & Besscy, j66g. 



Idaho: Henry's Lake, July 31, 1897, Rydberg iS: Bessey, jdyo. 



Trisetum subspicatum (L.) Beauv. Agrost. 88 [Man. R. M. 415; 



111. Fl. i: 171; Bot. Cal. 2: 296]; Aim snbspicaia 'L. Syst. 



Veg. Ed. 10, 673. 



On hillsides up to an altitude of 2500 m. 



Montana: Mystic Lake, 1895, Shear, 48 j and ^gj ; Rydberg, 

 22^j and 22j8; Spanish Basin, 1896, Flodman, 86 and 8y ; Philips- 

 burg, 1892, Kelscy ; Spanish Basin, 1896, Rydberg, J14Q; Belt 

 Pass, jjjj. 



Yellowstone Park: 18S4, Tzceedy, 261; East Fork, 1885 » 

 61 g; Stinking Water, 1873, Parry, 2gi ; East De Lacy's Creek, 

 Aug. 10, 1897, Rydberg & Bessey, 35g6; Shoshone Lake, Jjgj; 

 Upper Falls, Aug. 14, 75^^; 1871, Hayden. 



Trisetum subspicatum molle (Michx.) Gray, Man. Ed. 2, 572 



[Man. R. M. 415; Bot. Cal. 2: 296]; Avena moUis Michx. 



Fl. Bor. Am. i : 72. 



Range as in the species, but in dryer soil. The spike is nearly 

 always much shorter and thicker than in the typical form. 



Montana : Spanish Basin, 1896, Flodman, 88 ; Long Baldy, Lit- 

 tle Belt Mts., c^^,- Bridger Mts., go; Yogo, 1888, R. S. Williams, 

 548; Spanish Basin, 1886, Rydberg, jioj, jij;o, J184; Bridger 

 V?iss, J2i6 ; Elk Mountains, J2yg; Long Baldy, Little Belt Mts., 

 3j8g; Cedar Mountain, July 16, 1897, Rydberg d- Bessey, jjgj ; 

 McDonald's Peak, 1883, Canby,j66; Little Belt Mts., 1883, Serib- 

 ner, 36 g. 



Yellowstone Park: Mirror Lake, 1885, Ticeedy, 618; Elec- 

 tric Peak, Aug. 18, 1897, Rydberg £■ Bessey, 33g4. 



Idaho : Mt. Chauvet, July 29, 1897, Rydberg d' Bessey, 33g3. 



* Avena Americana Scribn., Bull, U. S. Dept. Agric. Div. Agrost. 



7 : 183 ; Avena versieolor Hook. Fl. Bor. Am. 2 : 244 ; not Willd. ; 



A. -pratensis Anicrieana Scribn. Coult. Bot. Gaz. 11: 177; A. 



//oo^er i Scnhnev, Hack. True Grasses, 123. 



Montana: Spanish Basin, July 18, 1896, Flodman, yg; Belt 

 Canon, 1887, R. S. Williams, 381 ; Gallatin Co., 1886, Tzueedy, 

 1013; 1883, Scribner, 3J2 ; Spanish Basin, 1896, Rydberg, 3 141 , 

 Judith River, 3431 ; Spanish Basin, June 26-July i, 1897, Rydberg 

 & Bessey, 33gg andj(5oo; Fort Logan, 1883, Seribner, 3^2. 



