43° 



CYPERACEAE. 



Vol. I. 



209. Carex lepidocarpa Tausch. Small Yellow Sedge. Fig. 1076. 



Carex lepidocarpa Tausch, Flora 129. 1834. 



" Carex flava var. rectirostra Gaudin ; " Fernald, Rho- 



dora 8 : 201. 1906. 

 C. flava var. graminis Bailey, Mem. Torr. Club 1: 30. 



1889. 

 C. flava var. elatior Schlecht. Fl. Berol. 1 : 477. 1823. 



Glabrous, yellow-green, culms slender, stiff, erect, 

 smooth or nearly so, 6-18' tall. Leaves i¥' wide 

 or less, fiat, usually shorter than the culm, the lower 

 bract elongated, spreading or ascending, sheathing; 

 staminate spike solitary, sessile or peduncled; pistil- 

 late spikes 1-4, oblong to subglobose, erect, sessile 

 and continuous or widely separate, the lower stalked, 

 densely 15-35-flowered, s"-8" long, about zh" thick 

 (extremes 3"-4i") ; perigynia ovoid, yellow, spread- 

 ing or the lower retrorse when mature, 2" long, few- 

 nerved, abruptly contracted into a subulate 2-toothed 

 beak which is shorter than the body; scales ovate to 

 lanceolate, acute or acuminate, J-l length of peri- 

 gynia, usually inconspicuous at maturity; stigmas 3. 



Wet meadows, Newfoundland to Michigan, Rhode 

 Island and New Jersey. Also in Europe. June-Sept. 



210. Carex flava L. Yellow Sedge. Fig. 1077. 



Carex flava L. Sp. PI. 975. 1753. 



Glabrous, yellow-green, culms slender but stiff and 

 erect, smooth or nearly so, 6'-2° tall. Leaves i"-2i" 

 wide, flat, the lower shorter than or sometimes ex- 

 ceeding the culm, the lower bract elongated, spreading 

 or ascending, sheathing ; staminate spike solitary, stalked 

 or sessile; pistillate spikes 1-4, globose-oblong, erect, 

 varying from sessile and close together to strongly 

 separate and the lower strongly stalked, densely 15-35- 

 flowered, 3"-9" long, about 5" thick (extremes 4i"-6") ; 

 perigynia narrowly ovoid, yellow, and spreading in all 

 directions when mature, 2i"-3" long, strongly several- 

 nerved, the subulate 2-toothed deflexed beak as long as 

 the body or longer ; scales lanceolate or ovate, acute to 

 short-cuspidate, J-4 length of perigynia, conspicuous 

 at maturity; stigmas 3. 



In swamps and wet meadows, Newfoundland to British 

 Columbia, Rhode Island, New Jersey, Pennsylvania, Ohio 

 and Montana. Europe. Marsh hedgehog-grass. June-Sept. 



211. Carex Collinsii Nutt. Collins' Sedge. Fig. 1078. 



Carex subulata Michx. Fl. Bor. Am. 2 : 173. 1803. Not Gmel. 



1791, nor Schum. 1801. 

 Carex Collinsii Nutt. Gen. 2 : 205. 1818. 

 Carex Michauxii Dewey, Am. Journ. Sci. 10 : 273. 1826. Not 



Schwein. 1824. 



Caespitose, glabrous, culms slender, weak, erect or re- 

 clining, 6'-2° long. Leaves narrow, soft, the broadest 

 about 2*" wide; staminate spike terminal, short- or long- 

 stalked; pistillate spikes 2-4, distant, 2-8-flowered, short- 

 stalked, or the stalk of the lowest sometimes ii' long; 

 bracts similar to the upper leaves, elongated, strongly 

 sheathing; perigynia light green, scarcely inflated, sub- 

 ulate, a"~7" long, tapering from below the middle into an 

 almost filiform beak, faintly many-nerved, horizontal or 

 reflexed when mature, easily detached from rachis, about 

 3 times as long as the hyaline lanceolate-acuminate per- 

 sistent scale, its teeth very strongly reflexed at maturity; 

 achenes linear-oblong; stigmas 3. 



In bogs, Rhode Island to eastern Pennsylvania, south to 

 South Carolina and Georgia. Ascends to 2000 ft. in Pennsyl- 

 vania. Attributed to Canada by Michaux. June-Aug. 



