31 
Bromus porteri (Coulter) Seribn. 
Colorado: Georgetown, common on mountainsides, August (610, 6241) ; Idaho Springs, 
n mountain sides aad along the road, frequent, August (739, 2490, 2496). 
Bromus inermis Leyss. (Smooth Brome-grass). 
Montana: Bozeman, cultivated on the experiment station grounds, where it is said 
to withstand dry weather well, July 22 (447). 
Bromus kalmii A. Gray. 
Utah: Cache Junction, August 9 (597). 
tals: Beaver Canyon, common in a meadow, 5 (2344). 
1 Bozeman, in woods in the canyon, rare, a taller weak-stemmed form, with 
spreading and many-flowered panicle, posa ing B. ciliatus, July 22 
pee 3); Lima, frequent along the moist bank of a mountain brook, August 6 
(566, 2315). 
Bromus mollis Linn. 
Montana: Garrison, only a few specimens found on a railway embankment, July 10 
(2126). 
» Bromus pumpellianus tweedyi Scribn. var. nov. 
Culms stout, about 2 feet high; leaves short; panicle dense, short; spikelets small; 
Montana: Lima, frequent along a mountain brook, August 6 (568, 2304). 
Bromus secalinus Linn. 
Montana: Garrison, near the railway track, scarce, July 10 (368); Bozeman, in a 
moist meadow with B. breviaristatus, rare, July 22 (453, 2214). 
Agropyron caninum R. & 8. 
Montana: Manhattan, in a moist meadow, July 17 (416, 2176); Bozeman, in a moist 
meadow, July 22 (452); Melrose, in moist sandy soil, August 1 (542). 
Agropyron dasystachyum subvillosum Scribn. & Smith. 
Colorado: Georgetown, low ground, August 19 (631). 
Idaho: Beaver Canyon, August 7 (587, 2341). 
Montana: Deer Lodge, on the river bank July 9 (2130); Red Rock, in a meadow. 
August 3 (549). 
Agropyron divergens Nees. 
Idaho: Beaver Canyon, on hillsides, June x 2064). 
Montana: Lima, July 1-2, August 6 (326, 330, 559); Melrose, rocky hillsides, July 6 
(2 ry Silver Bow, hillsides, July 6 rad Bozeman, mountain sides, July 23 
(472, 474). 
5 p tenuispicum Scribn. & Smith. 
Montana e July 1 (2074); Melrose, rocky cliffs, July 6 (347); Helena, 
oar ian Tuy 12 (2147). 
Agropyron gmelini Scribn. & Smith. 
Idaho: Beaver Canyon, August 7 (2321). 
Montana: Deer Lodge, in a meadow, July 9 (379); Bozeman, on Baldy Peak, July 23 
(2233). 
propyron nae An Seribn. & Smith. 
mp aska arney, in a meadow, June 20 (272, 2018). 
Colorado: Georeetoy », mountain side, August 17-19 (621, 649, 651); Idaho Springs, 
August 27-28 (733, 
Montana: ia on m bán k of a brook, July 3 (340, 2088) ; Helena, along a diteh, 
July 12 (383); Manhattan, on a shady river bank (411), in sandy places, ay 17-18 
