40 C. Dewey on Caricography. 
laevi subtriquetro basin foliaceo et vaginato, foliis crassis baiaggia nervatis 
pe: foliis forma juniore flaccidis et omnibus laevi 
about 20 inches high, erect, stiff and smooth, ley towards ee 
base, sia bracteate under the lower spikes; leaves flat, urved, stiff i 
maturity, but flaccid earlier, slightly rough on the upper ie of the ee ie 
and shorter than the cu ulm ; staminate spikes single, ovate, short-conic ; 
pistillate spikes 3-5, ovate-oblong or eee cya thick and close-flow- 
ered; when 4-5, the é upper 1-2 spikes short, small and near the stami- 
nate, the three lower pedunculate, leafy bractent hein vaginate, the 
lower longer and more remote, and the lowest long, pedunculate and 
some declined; stigmas three and short; fruit chlouss ellipsoidal, round, 
triquetrous, ovate or sub-cylindric, nerved, black at the short opening apex, 
orifice sometimes bilabiate, as long as or near twice as long as = broad- 
short-ovate short acute scale or sub-mucronate tawny-black sca 
Pierre’s Hole, valley of Snake River, June 20, 1860, 6000 s sik and 
Heety ~ oa June 22, 1860, 5500 ft. alt. —Dr. F. V. aise 
te 275. t jee Dew. 
Spica composita oblonga 3-1 unciali; spiculis 4—7 onesie sessilibus 
yrevibus parvisque apicem staminiferis nune approximatis nunc remoti- 
usculis, inferiore squamaceo-bracteata ; fructibus distigmaticis obovatis 
substipitatis convexo-concavis brevi-rostratis ore obliquis eatin squama 
lata ovata subacuta dorso fusca m: a dea _albo-membranacea paulo longio- 
ribus vel subaequantibus; culmo acili foliis. angustis Jongiore. In- 
terdum spicis nullo flores pistilliferos haben tbe forte non floriferis, 
Culm 6-12 inches high, slender, erect, triquetrous, scabrous and naked 
above, narrow-leafy towards the base; spikelets 4-7, ovate and sessile, 
on a short cylinder terminating above and especially the upper ones ; the 
lower spikelets scaly-bracteate; stigmas 2; fruit obovate, tapering 
below, rostrate and stiped, at the orifice oblique, equalling or a little ~ 
ceeding the broad-ovate ‘subacute scale which has a tawn ny back a 
white membranous mar 
Jackson n’s Hole, on Snake River, June 18, 1860, 6000 ft. alt—Dr. F. 
ayden. 
Differs from others of this family in having the staminate part of the 
spikelet a short projecting column or cylinder at the apex, often longer 
than the pistillate part, and having its closely appressed ovate scales, 
No. 276. C. Douglasii, Boott, Hook; Fl. Am. Bor., tab. 214. 
The common form of this species, as found by Dr, Hayden in Nebraska 
Ter., a few years since, was described in this ener g! vol. xxiv, p. 46, 
1857. In 1860 he collected specimens, as desribod | age Boott, to- 
wards a foot high, with spikelets androgynous and st at the aper, 
wit hol seta fertie j and also another tice ck “aholy pistillif- 
erous and so different in spike as to be ranked as a very 
clear variety, if indeed it belong’ this speci, It is here described as 
