CATALOGUE, _ 991 
(1132). Culm 2-3°, erect, rather stout; culm-leaves broadly linear (3-5’ 
long, 3” broad), gradually tapering to a point, rather scabrous; sheaths 
mostly smooth, shorter than the internodes; panicle 4-8’ long; rays 2-5 
together, mostly in twos or threes, 2-3’ long, and capillary, smooth or 
slightly scabrous, diverging, flower-bearing mostly for the upper third ; 
spikelets 3-5-flowered, light green, rather loose ; glumes acute, thin, smooth, 
except slightly hispid on the keel, obscurely nerved; lower palet distinctly 
3—h-nerved, slightly pubescent, rather more so on the keel and margin 
below, acutish. 
Poa WueEeEver!, Vasey.—Culms 14-2 feet high; radical leaves rigid, 
involute and cuspidate-pointed, 5—10 inches long; culms from running root- 
stocks like Poa brevifolia, Muhl., and having a panicle like that with capil- 
lary branches in pairs; flowers acute, not webbed.—South Park, Colorado, 
1873 (1131).—Piate XXVIII. Fig. 1. Natural size. 2. Spikelet, mag- 
_nified 5 diameters. 3. Upper floret, with rudiment, magnified 7 diameters. 
Poa arctica, R. Br.—Culms 14-2° high, erect, slender, very smooth, 
as are the sheaths and leaves; leaves about 2 on the culm, 2-3’ long, 
narrow-linear ;. panicle 4-5’ long; rays simple or in pairs, capillary, lower 
ones 2-3’ long, rather distinct, spreading and reflexed with age, branched 
near the extremity with few spikelets; spikelets mostly 3-flowered; 
glumes broadly ovate, rather acute, purple-margined; flowers ovate, acute, 
obscurely 3-5-nerved, smooth, except pubescent on the keel and lateral 
nerves, slightly webbed.—Along mountain streams. Twin Lakes, Colo- 
rado (1144 and 1145). 
Eracrostis Pursuu, Bernh.?—Nevada, 1871 and 1872; Camp Lowell, 
Arizona, 1874 (1004). 
Eragrostis PrLosa, Beauv.—Saguache Creek, Colorado, 1873 (1146). 
ERAGROSTIS POAOIDES, var. MEGASTACHYA, Beauv.—Ash Creek, Ari- 
zona, 1874 (305). Var. rotiosa, Cienega Creek, Arizona, 1874 (591). 
Festuca ovina, L.—Utah, 1871 and 1872; Colorado, 1873 (1149). 
Festuca ovina, L., var. puriuscuLA.—Twin Lakes, Colorado, 1873 
(1150). : 
Festuca ovina, L., var—Mount Graham, Arizona, 1874 (424). 
Festuca ovina, L., var. ARIsTATA—South Park, Colorado, 1873 (1148). 
