21 
"Calamagrostis poa (Vasey); (Deyeuxia neglecta americana Vasey, Macoun 
Cat. Can. Pl., 4: 206 (1888); ine Sone stricta robusta Vasey, pap a ME 
6: 285 (1818); ends robusta Vasey, Contr. U. S. Nat. Herb., 3: 1, 82 
(1892) ; not C. robusta Franch. & ei nor Deyeuxia robusta 
Montana: Townsend, common in low Seadoo, July 15 (393, 398, 406, 2154); Lim 
the principal grass in an alkaline meadow, August 5 (2318, 2319); Manhattan, 
moist thickets and shady són July 17 (421, 2191); Logan, common, shady 
river banks, July 27 (503); Madison River, common in wet meadows, a pede: hay 
grass, July 28 (522). Confused with C. neglecta but distinguished by its rigid, 
marcid basal sheaths, more rigid culms and leaves, dense panicle and thicker 
and rougher empty glumes 
Calamagrostis purpurascens R. Br. (C. sylvatica Am. auct., not DC.). 
Montana: Bozeman, woods on las Peak July 23 (2224); summit of Mount Bridger 
468). 
( 
Colorado: Silver Plume, occasional, on the summit of the mountains, altitude 13,000 
feet, August 24 (691, 696, 2470); Georgetown, on the mountains, a taller form 
(about 2 feet), panicle larger, more open, pale green, August 17 (614, 2380). 
Calamagrostis suksdorfii Scribn., in Hack., True Grasses. 
Montana: Bozeman, in € 3 very rare, July 23 (2230). 
¡ases! Beaver Canyon, ne of the most common grasses in the meadows, especially 
n wet places, kara T y 578, 2325, 2332). 
amovilfa longifolia (Hook.) Seribn 
Nebraska: North Platte, common along the Platte River, September 7 (770, 2518). 
Colorado: La Salle, along irrigation ditches, September 4 (765). 
Montana: Townsend, frequent in moist meadows, July 15 (394). 
Deschampsia ceespitosa (Linn.) Beauv. 
Colorado: ries Plume, frequent along the mountain brooks about timber line, 
altitude 11,000 to 13,000 feet, August 22, 24 (675, 683, 703, 709, 714, 2427, 2434, 
2457, 2 pied Georgetown, in wet places one streams, August 19 (645). 
Idaho: Beaver Canyon, common on the mountain sides, June 27 (300) 
Mon tana: Lima, moist shady places, June, S 319, 358, 5544, 567, 2067, 2306) ; 
ha 
Gallatin Valley, in meadows along the river, July 18 (430, 443, 2202, 2203, 2193); 
Bozeman, July 22 (2219); Melrose, August 1 (537). Several varieties are included 
here. 
Deschampsia elongata (Hook.) Munro. 
Montana; Bozeman, gravelly margin of the creek in the canyon, below Baldy Peak, 
July 23 (473, 482, 2226). 
Avena fatua Linn 
Utah: Cache Junction, common in cultivated fields, i in many places quite a pest, 
August 9 (594); Logan, August 8 (2350). 
Avena mortoniana Seribn. (Bot. Gazette, 21: 133, Plate XI). 
Colorado: Sum of Grays Peak, August 23 (697, 2439); Robinson, Summit Cot, 
altitude 13, p feet, August, 1896 (1057 Shear). 
Trisetum montanum Vasey. 
Colorado: Georgetown, hillsides, fairly common, August 17 (622, 23943); Idaho 
Springs, commón, August 28 (718, 720, 2479, 2481, 2484, 2491). 
Tristeum subspicatum (Linn.) Beauv. 
Colorado: Georgetown, mountain sides, August 17 (624, 656, 2394); Silver Plume, 
altitude 11,000 to 13, 000 feet, frequent in moist places, August 22 (668, 684, 681, 
2422); Grays Peak, August 23 (2453, 2435). 
