138 SYNOPSIS OF THE FLORA OF COLORADO. 



^"-IJ" wide, mostly auricled at base ; heads 3-10 flowered, paler, rather 

 numerous and panicled ; flowers a little smaller, the inner petals shorter 

 and mostly acute, the outer ones equaling the loug-inucronate capsule. 

 Hall & Harbour, 564 ; Canby. 



COMMELYNA YiRGiNiCA, L. Purgatory Eiver, Dr. Bell. 

 TRADESCANTIA VIRGHNICA, L. On the plains, Dr. Smith; B. H. 

 Smith. Along the Platte, Coulter; Redfield. 



CYPERACE^. 



CYPERUS TNFLEXUS, Muhl. Near Denver, Dr. Smith. Canon City, 

 Brandegee. South Park, Porter; Redfield. 



CYPERUS SCHWEINITZII, Torr. " Low Mountain s," Hall & Harbour, 

 584. Wet Mountain Valley, Brandegee. Colorado Springs, Porter; Red- 

 field. 



HEMICARPHA SUBSQUARROSA, ISTees. Wet Mountain Valley, Bran- 

 degee. 



ELEOCHARIS OLIVACEA, Torr. Greeley, Greene. 



ELEOCHARIS PALUSTRIS, E. Br. Near Denver, Dr. Smith. 



ELEOCHARIS OOMPRESSA, Sulliv. Pueblo, Greene. 



ELEOCHARIS ACICULARIS, E. Br. Near Denver, along the Platte, Dr. 

 Smith. 



SCIRPUS PAUCIFLORUS, Lightfoot. Hall & Harbour, 582. 



SCIRPUS C^ESPITOSUS, L. Hall & Harbour, 583 ; subalpine. 



SCIRPUS PUNG-ENS, Vahl. Near Denver, Dr. Smith. 



SCIRPUS VALIDUS, Vahl. Near Denver, Dr. Smith. Canon City, 

 Brandegee. 



SCIRPUS MARITIMUS, L. Wet Mountain Valley, Brandegee. 



SCIRPUS SYLVATICUS, L. Canon City, Brandegee. 



SCIRPUS ATROVIRENS, Muhl. Hall. 



ERIOPHORUM POLYSTACHYON, L. Wet Mountain Valley, Brandegee. 



FIMBRISTYLIS LAXA, Vahl. Hall & Harbour, '581. 



ELYNA 1 SPICATA, Schrad. (Kobresia scirpina, Willd.) Csespitose ; 

 stems numerous, 1 high, slender, striate-angled ; leaves filiform ; spike 

 1' long, somewhat clavate. South Park, Hall & Harbour, 598 and 599. 



CAREX NiaRiCANS, Meyer. Spike solitary, oblong, staminate at top ; 

 stigmas 3 or rarely 2 ;' perigynium ovate, stipitate, ventricose, shining, 

 gradually attenuated into a beak, sometimes few-toothed, nerveless, 

 spreading or at length reflexed, rusty-colored, with an entire obliquely- 

 cut mouth, about equaling the dark-brown, oblong, obtuse scale ; the 

 lowest scale rarely subleafy ; achenium unequally 3-sided. Boots creep- 

 ing ; culms 6 / -12 / high. Hall & Harbour, 609. 



CAREX PYRENAICA, Wahl. Spike solitary, densely flowered, stam- 

 inate at top, elliptic, rusty-brown; stigmas 3, rarely 2; perigynium fusi- 

 form or lanceolate, gradually attenuate, long*stipitate, nerveless, coni- 



1 ELYNA, Schrad. Spikelets 2-flowered, covered by a bract. Scale single, its mar- 

 gins connate at base. Hypogoiious setae none. Pistillate flower of the spikelets be- 

 low, style 1, stigmas 3. Nut 3-angled, short-mucronate by the persistent base of the 

 style. Upper flower staminate, short pediceled. Stamens 3. Koch Fl. German. 



