CATALOGUE. 367 



ium ovate-lanceolate or lanceolate, tapering to a long bifid beak, sjjongy at base, 

 winged, serrate and waved on the margins, slightly nerved, shorter than or 

 nearly equaling the ovate-lanceolate acuminate scale, which is membranous 

 with bright rusty-colored margins. Eoot fibrous ; culm 1-2° high, leafy. — 

 Yosemite Valley, California, (1650 Brewer, 552 Torrey, 6213 Bolander ;) 

 Colorado, (587 D., Vasey.) Truckee River, Nevada, near the Big Bend, (W. 

 W. Bailey ;) 4,000 feet altitude; August. (1,236.) 



Var. MiNOE, Olney. California, (Brewer and Hillebrand.) Young 

 specimens from the "Wahsatch Mountains -may doubtfully be referred here ; 

 9,000' feet altitude ; August. (1,237.) 



Caeex Liddoni, Boott. Spike erect, oblong, rusty-white, composed of 



3-6 androgynous club-shaped spikelets, the upper half pistillate, the lower 



staminate, contiguous, simple ; bracts scale-like, long-acuminate ; stigmas 2 ; 



perigynium lanceolate, tapering to a bifid beak, deeply cleft in front, winged, 



slightly nerved, compressed, loosely imbricated, bright rust-colored above, 



longer than or nearly equaling the lanceolate acuminate, acute or cuspidate 



scale, which is of a bright-rusty color, whitish-hyaline on the margins and 



scabrous on the nerve ; achenium lanceolate, stipitate. Culm 2-3° high, 



exceeding the leaves. — On the Columbia River, (Scouler !) East Humboldt 



Mountains, Nevada, near snow at 9,000 feet altitude ; July, August. (1,238.) 



References to doubtful plants that have been referred to this species are 



omitted. 



Caeex straminea, Schk. Throughout North America; Colorado, on 



Hayden's Survey, (Thomas, 422 Greene.) In the Uintas, on a snowy 

 divide between the Provo and Duchesne Rivers ; 10,000 feet altitude ; 

 July. (1,239.) 



Caeex limula. Fries., (not of Gray's Manual.) Spikelets erect, 3-4, 

 the terminal one (or sometimes two) staminate, the remainder pistillate, often 

 with staminate flowers at the apex, oblong, cylindrical, the lowest peduncu- 

 late ; bracts leafy, surpassing the culm, with small blackish auricles ; stigmas 

 2 ; perygnium oblong, compressed, faintly nerved, exceeding or equaling the 

 black oblong single-nerved scale ; achenium obovate, compressed. Culm 

 2-2 i° high, acutely angled ; leaves erect, flat, rough on the margins, the 

 sheathing base-leaves not fibrillose. — Colorado, at 11,300 feet altitude, (582 

 Vasey.) In the Uintas on the shore of a subalpine lake, with C. elongaia, 

 &c.; 9,500 feet altitude ; August. (1,240.) 



