SEDGE FAMILY 



295 



20. Carex stenoptera Mackenzie 

 Narrow-winged Sedge. 



Fig. 696. 



Ca-e.r stciwpiera Mackenzie, Erythea 8: 28. 1922. 



Rootstocks thick, dark, short-creeping, the cuhns 2.5-4 dm. 

 high, smooth: leaf-hlades 2-3 mm. wide, channelled, the sheaths 

 tight, not cross-rugulose, obscurely red-dotted ; head decompound, 

 2.5-5 cm. long, 6-10 mm. thick, with numerous androgynous 

 spikes 5-8 mm. long, 4-6 mm. wide, with several-many perigynia ; 

 bracts inconspicuous; scales ovate-lanceolate, obtusish to short 

 cuspidate, about length of perigynia, brownish with broad green 

 center and conspicuous hyaline margins; perigynia ovate-lanceo- 

 late, plano-convex, 3-3.5 mm. long, 1.5 mm. wide, narrowly thin- 

 winged to base, stramineous, nerved dorsally, nerveless ventrally 

 or nearly so, round tapering at base, tapering or contracted into 

 a serrulate bidentate beak more than half length of the body; 

 achenes lenticular; style slender, jointed with achene ; stigmas 2. 



San Antonio Mountains, southern California. Type locality: Ice House 

 Canon, San Antonio Mountains. 



21. C 



smooth or 



arex densa Bailey. Dense Sedge. Fig. 697. 



Care.v brongniartii dcnsa Bailey, Proc. Am. Acad. 22: 137. 1886. 



Carex densa Bailey, Mem. Torrey Club 1: 50. 1889. 



Carex chrysolcuca Holm, Am. Journ. Sci. IV. 17: 302. 1904. 



Culms 3-6 dm. high, sharply triangular, stiff, 

 roughened immediately beneath head, from exceeding to shorter 

 than the leaves. Leaf-blades 3-6 mm. wide, the sheaths loose, 

 conspicuously septate dorsally, and thin, hyaline and more or 

 less cross-rugulose ventrally, prolonged and convex at the 

 mouth; head 2-5 cm. long. 1.5 cm. wide, dense, decompound, the 

 clusters closely aggregated, the individual spikes hardly recog- 

 nizable, the perigynia few, appressed-ascending ; bracts incon- 

 spicuous, except one or two lower ones ; scales ovate, shorter 

 than perigynia, dark chestnut-brown with green rnidvein, acute 

 to cuspidate; perigynia 4-4.5 mm. long, 1.5 mm. wide, unequally 

 slightly bi-convex, smooth, ovate or ovate-lanceolate from a 

 round" tapering substipitate base, straw-colored or at length 

 brownish, strongly several nerved on both faces, narrowly green- 

 margined, the upper half of body serrulate, more or less abruptly 

 beaked, the beak more than half length of body ; achenes lentic- 

 ular ; stigmas 2. 



In dry soil. Upper Sonoran Zone; west of the higher ranges of the Sierra 

 Nevada from Santa Clara and Mariposa Counties, California, northward into 

 Oregon. Type locality: Mark West Creek and Napa, California. 



22, Carex vicaria Bailey. Western Fox Sedge. 



Carex vicaria Bailey, Mem. Torrey Club 1: 49. 1889. 

 Carex itilf^iiwidea vicaria (Bailey) Kiikenth. in Engler Pflanzenreich 

 4=": 148. 1909. 



Culms 3-6 dm. high, sharply triangular, strongly roughened 

 on angles above, exceeding the leaves. Leaves with blades 

 3^.5 mm. wide, the sheaths tight, not conspicuously septate 

 dorsally; and thin, hyaline and more or less cross-rugulose 

 ventrally, the upper short-prolonged and convex at mouth ; 

 head l.B-3 cm. long, about 12 mm. wide, decompound, the 

 clusters closely aggregated, or the lower slightly separate, the 

 individual spikes hardly recognizable, the perigynia in each 

 few, spreading at maturity; bracts inconspicuous, except one 

 or two lower ones ; scales ovate, acute to cuspidate ; shorter 

 than perigynia, reddish-l)rown tinged with green midvein ; 

 perigynia 3-3.5 mm. long, 1.5 mm. wide, plano-convex, smooth, 

 ovate from a rounded base, substipitate, reddish-tinged or 

 yellowish-brown with green margin, few-nerved dorsally, 

 nerveless ventrally, the body sparingly serrulate above, con- 

 tracted into the serrulate, bidentate beak half length of body; 

 achenes lenticular ; stigmas 2. 



Marshes and swales. Humid Transition and Canadian Zones; W'ash- 

 ington to northern California. Type locality: Oregon. 



Fig. 698. 



