148 SYNOPSIS OF THE FLORA OF COLORADO. 
Annual, creeping, very much branched from the vires cada fascicu- 
late, 3/-8/ lon ug; lea aves 1/2’ long , flat, 1-2” wide, s Ss what pungent, 
scabrous on the margin ; ; spikelet $n mostly 3, closely eisaced: 3—4- 
flo wered; glumes almos tou nilateral, EaSee Taawavlate, carinate; palets 
2-3 times Tonger than the glumes, lanceolate, acute, upper one bicam, 
nate, rather obtuse.—On the plains, Hall & Harbour, 638. Colorado 
Springs, Porter. Denver, Dr. Smith. Cation City, Brandegee 
LEPTOCHLOA FASCICULARIS, Gr.—Hall & Harbour, 644. 
Sees PURPUREA, Nutt.—Hall & Harbour, 645. 
TRicusPis Murica, Torr. Bot. Whippl. p. 156. Cvespitose, glabrous, 
a sal culm rigid, teret te, erect, very simple; leaves convolute- Rie 
14)/ ‘Jo ong; panicle terminal, much exserted, racemose, 3/—6/ 1e 
reer appressed a hes beari ‘ing 3-5 spikelets; spikelets fata enue 
5-8-flowered, glumes unequal, 1-nerved, rather acute, scarcely half the 
ength of the spikelets; lower palet aw nless, entire or bifid, long ciliate 
on the margin and back ; upper palet $ shorter than th lower, notched 
at the apex, plumose on t the marg gin; style short ; stigmas plumose, pur- 
ple.—Canon City, (eae ne, 1873. 
RICUSPIS ACUMENATA, Munro, in Herb. Thurb. “Culms cespitose, 
ple, usually with bat a single node, which bears a very short leaf: 
panicle dense, ovoid; spikelets subsessile, 8-12 flowered, the rachis : 
easily disarticulating ; glumes acuminate, L-ner ved, the upper subarist- 
ate and with the palets carinately compressed ; lower yalet 3” long, 
acuminate, membranaceous, 3-herved, marginal nerves terminating at 
“th 
seutellam, which is nearly half its lengt th —This exe eedingly neat and 
avedanhentee species is apparently a perennial, forming tufts with culms 
0 1° or more high, somewhat rigid, Coinbresacd: and often geniculate 
at sath nodes red ; hentia much shorte r than the internodes, with a 
pilose tuft at t the throat ; ligule minute, sderate ; the pale-green leaves 
plane or canalicolate, rigid, distinctly 3-nerved, pubescent, “scabrous on 
he margins, obtuse pit uucronulate at apex; radical leaves 2’ 4 
th ' the culm y ong; panicle 1/-2’ long with a few ates 
ar et rally ear whitish or with a very slight purple tin ; the 
broad palets (at least when dry) nearly colorless, with green nervy os and 
aeons silky hairs upon the lower portion and marginal nerves} 
& 
q 
: 
truncate ; seed fusiform, smooth, shining ey tr. hidenent, Selet the 
one.—The plant has something of the habit of Tricuspis (Uralepis) 
avenaced, Kth., and has been mixed with it by collectors, but is readily ; 
distinguished i its larger and many-flowered spikelets and its carinate, 
acumin nate, anc mostly entire lower palet—Texas, Linaheimer, 735; 
>; Wright, 781, 782, (in part) and 2058. New Mexico, Fendler, : 
915.” Cation City, Colorado, Brandegee ; Greene, 1873. 
sy TS ote ‘)) BERS ge Th urber Proc. Ae ad. Phi Hs iat : 
oOo 
