142 SYNOPSIS OF THE FLORA OF COLORADO. 



CAREX ALPINA, Vahl. Rail & Harbour, 618. Chicago Lakes, at 12,000 

 feet altitude, Coulter. 



CAREX AUREA, Nutt. Mouut La Plata, at 11, 000 feet altitude, Coulter. 



Var. ANDROGKYNA, Olney. Culms short, more rigid; leaves erect, 

 broader ; upper spikes more closely aggregated and deuser flowered, the 

 upper spike generally androgynous, having more or less fertile flowers 

 at the top. Colorado, Dudley's Ranch, E. L. Greene. 



CAREX GEYERI, Boott. (C. pliyllostachya, Dew., in Bot. Mex. Bound., 

 not of Meyer.) Spike simple, androgynous, the top cylindric and stam- 

 inate, pale, at length bright-rusty, with 1-5-pistillate flowers at the base, 

 remote and erect with the rachis ; stigmas 3 ; perigynium oval-trigon- 

 ous, produced at base, short-beaked, entire at the oriflce, whitish-hya- 

 line, membranous, smooth, with two prominent nerves, shorter than the 

 broad-ovate, obtuse or acute sheathing cuspidate or foliaceous scale, which 

 is whitish with a green nerve. Hall & Harbour, 611. 



CAREX TORREYI, Tuckerinan. Clear Creek, near Golden City, E. L. 

 Greene. 



CAREX Eossn, Boott. Spikelets 4-5, pale, few-flowered, the terminal 

 one stamiuate, the rest pistillate, each of 3-6 alternate and distinct flow- 

 ers, the upper 3 spikes approximate, the lower remote, exsertly but un- 

 equally long-pedunculate; and upper bract surpassing the culm, the 

 lower sheathed, and all but the lower short-peduueled ; stigmas 3; peri- 

 gynium oval, stipitate, long beaked, bifid, pubescent, nerveless, equaling 

 the ovate-lanceolate acute or cuspidate scale ; acheniuin globose- trian- 

 gular, obtuse. Hall & Harbour, 020. 



CAREX OAPILLARIS, L. Hall & Harbour, 613. 



CAREX PENNSYLVANIA, Lain. Ute Pass, 1872, Porter. 



CAREX LANUGINOSA, MX. South Park, Canby. Ute Pass, Porter. 

 Caiion City, Brandegee. Meehan. 



CAREX TJTRICULATA, Boott. Hall & Harbour, 615; B. H. Smith; 

 Brandegee. 



Var. MINOR, Boott. " Swamps on low mountains," Canby. 



CAREX LONGIROSTRIS, Torr., var. MINOR, Boott. Culm short ; spike 

 shortened; beak shorter. Hall & Harbour, 614. 



ALOPEOURUS ALPINTJS, Sm. English Fl. 1. p. 81. Culm erect, smooth, 

 6'-l high ; palet about equaling the rather acute glumes ; awn exserted 

 more than half its length, slightly bent but not twisted; glumes 3-ribbed, 

 covered on the back with long, dense, white hairs; upper leaf much 

 shorter than its inflated sheath. Hall & Harbour, 683. Gray's Peak, 

 Dr. Smith. 



ALOPECURUS ARISTULATUS, MX. Hall & Harbour, 682. Monument 

 Park, Coulter. Platte Kiver, near Denver, Dr. Smith. Canon City, 

 Brandegee. 



PHLETJM ALPINUM, L. Gray's Peak, Dr. Smith; Meehan. Twin Lakes, 

 Porter. Saugre de Cristo Pass, Brandegee. Sierra Madre Kange, at 

 11,000 feet altitude, Weston's Pass and Twin Lakes, Coulter. 



VILFA CRYPTANDRA, Torr. fSporobolus cryptandrus, Gray J On the 

 plains near Denver, Dr. Smith. Colorado Springs, Porter. Canon City, 

 Brandegee. Hall & Harbour, 648. 



