250 CYPERACE.E. Carex. 



70. C. luzulsefolia. Stem 2 or 3 feet high, curving at top, obtusely angled, 

 smooth, 1- or 2-leaved at or below the middle, many-leaved at base : leaves lance- 

 linear, 4 to 10 inches long and 2 to 4 lines broad, acuminate to a sharp rough tri- 

 angular apex, much shorter than the stem : bracts sheathed, tapering to a short sharp 

 point, shorter than the peduncles ; sheaths 2| to 3 inches long, enlarging upward : 

 spikes 3 to 6 (usually 6), the male 1 to 3, clavate or obovoid or ellipsoidal, 3 to 9 

 lines long and 1 to 3 thick, often crowded so closely as to appear a single one, rarely 

 female at top or at bottom, the female 3 to 5, clavate, 6 to 14 lines long and 2 or 2 

 thick, the upper often sessile at the base of the male and occasionally overtopping 

 them, the others or all remote on exserted scabrous peduncles 2 to 6 inches long, 

 rather loosely flowered at base , scales purple or pale on the midnerve, oblong or 

 ovate or lanceolate, ciliate, obtuse or acute or roughly cuspidate : perigynium tawny 

 or purple, membranous, compressed-triangular, oval to lanceolate, acuminate to a long 

 cylindrical bidentate beak, the orifice not hyaline, stipitate, often curving outward 

 at top, smooth, slenderly nerved, slightly serrate on the upper margins, longer and 

 broader than the scale : nutlet olive-colored, triangular-obovoid, stipitate, loosely 

 invested by the perigynium and not half its length. 



In the Sierra Nevada, at high altitudes, from above Yosemite Valley to Ebbett's Pass and 

 northward, Brewer, n. 1701, 2019, 2131 ; Bolander, n. 6210, 6219 ; Kellogg. 



71. C. fulva, Good., var. Hornschuchiana, Boott. Stem slender, 1 to 2| 

 feet high, smooth : leaves flat, a line broad, much shorter than the stem : bracts 

 sheathing, the lower exceeding their spikes ; sheaths \ to 1 inch long : spikes 3 to 6, 

 chestnut-colored, the male 1 or rarely 2, cylindrical, 6 to 9 lines long, the female 

 oblong, 3 to 6 lines long, densely flowered, the upper usually close to the male and 

 often male at top, the rest approximate or remote on short peduncles or the lower 

 peduncle longer (an inch long) ; scales chestnut-colored with hyaline margins, ovate, 

 obtuse or rarely acute : perigynium membranous, obtusely and unequally triangular- 

 ellipsoidal, with a scabrous hyaline-toothed beak, smooth, nerved, divergent, longer 

 than the scale: nutlet chestnut-colored, triangular-obovoid. 111. iv. 137, t. 443. 

 G. Hornschuchiana, Hoppe. C. speirostachya, Smith ; Eng. Bot. t. 2770. 



In the Yosemite Valley, at Inspiration Rocks, and in the Mariposa Grove (Bolander, n. 4905, 

 4995) ; also in Newfoundland, and in Exirope. 



= = Perigynium hirsute. 



72. C. filiformis, Linn., var. latifolia, Boeckeler. Stoloriiferous : stem 1 to 2J 

 feet high : leaves flat, 1 or 2 lines broad, often exceeding the stem ; lower sheaths 

 fibrous-reticulate, scabrous on the outer sides : bracts without sheaths or the lowest 

 with a sheath 2 inches long or less, those of the female spikes exceeding the stem : 

 spikes 3 or 4 (rarely 6), purple, the male 1 to 4, linear, sometimes female at top, the 

 upper the largest, 16 to 26 lines long, more or less pedunculate, the lower sessile 

 and the lowest setaceously bracted ; female spikes 2 to 4, oblong or cylindrical, 

 to 2 inches long and 3 or 4 lines thick, often male at top, densely flowered, remote 

 and sessile, or the lowest peduncled, loosely flowered at base, and rarely compound ; 

 peduncles scabrous, 2 lines to 2 inches long ; scales purple, pale in the middle, 

 lanceolate to ovate or oblong, acute, ciliate at top or roughly cuspidate, 1 - 3-nerved : 

 perigynium olive-colored, coriaceous and hispid, ellipsoidal or ovoid, obtusely angled, 

 turgid, abruptly ending in a short bicuspidate beak with divergent scabrous teeth, 

 nerved, broader and usually shorter than the scale : nutlet chestnut-colored, triangu- 

 lar-ellipsoidal or obovoid, stipitate : style often contorted. Linnaea, xli. 309. C. 

 lanuginnsa, Michx. ; Boott, 111. i. 48, t. 129. C. pellita, Muhl. ; Schk. Car. 84, 

 fig. 149, 150. 



Var. aematorhyncha. Spikes 4, cylindrical, the male 2, the others female, 

 contiguous ; lower male scales obtuse, rounded, the upper apiculate, the lower female 

 lanceolate and the upper ovate, acute : perigynium ovate, emarginate-bidentate, pale 



