Carex. 



CYPERACE.E. 



391 



Swamps : not common : the var. cylindracea in the western part of the State. Fl. May. 

 Fr. June. 



4G. Carex cylindrica, Tuckerm. Cylindrical-spiked Sedge. 



Staminate spikes 2 - 3 ; fertile 1-3, remote, oval or oblong-cylindrical, on short pe- 

 duncles, erect or inclined ; perigynia ovoid, inflated, conical-rostrate, spreading, strongly 

 nerved, smooth, the beak 2-forked at the summit and a little hispid, about twice as long as 

 the ovate-lanceolate scale. — Tuckerm. I. c. p. 20. C. Tuckermani, Dew. Car. I. c. 49. p. 49. 



Culm li - 2 feet high, triquetrous, leafy, smooth below, rough above. Leaves about two 

 lines wide, overtopping the culm. Fertile spikes often solitary, but more frequently 2 and 

 rarely 3, an inch or sometimes rather more in length, and from one half to three quarters of an 

 inch in diameter ; the peduncles short and nearly naked. Perigynia 4-5 lines long, inflated, 

 spreading, tapering to a tubular-conical beak. Scales acute, often less than half the length of 

 the perigynium. Achenium triquetrous, with a long rigid continuous style. 



Wet meadows : not rare in the interior of the State. Differs from the preceding in its 

 shorter and stouter spikes, and more spreading perigynia. This species has much the ap- 

 pearance of C. tentaculata ; but that has more compact and longer spikes, and the scales are 

 tipped with a long rough awn. 



47. Carex utriculata, Boott. Bladder-fruited Sedge. 



Staminate spikes 2-4, elongated; fertile 2-4, cylindrical, rather stout, pedunculate; 

 perigynia oblong-elliptical, inflated, diverging, acuminate with a slender 2-cleft beak, longer 

 than the lanceolate roughly awned scale. — Boott, I. c. 2. p. 221. C. vesicaria, Schwein. 

 Torr. Car. I. c. p. 365 ; Dew. Car. I. c. 10. p. 273 ; Beck, hot. p. 443, not of Linn. C. 

 ampullacea, Dew. Car. I. c. 7. p. 266? 



Culm about 2 feet high, stout, triquetrous, rough above, leafy. Leaves 3-4 lines wide, 

 longer than the culm. Staminate spikes 1-2 inches long, mostly 3, occasionally bearing fruit 

 at the summit ; the scales lanceolate and acute. Fertile spikes 2-4 inches long, and nearly 

 half an inch in diameter, the uppermost one sometimes staminate at the summit : scales 

 mostly a little shorter than the fruit ; the point long and awn -like. Perigynia very numerous, 

 more or less spreading, about 3 lines long, abruptly contracted at the base, strongly nerved ; 

 the beak moderately 2-forked. Achenium triquetrous, minute. 



Wet meadows : northern and western counties. Fl. May. Fr. June. I have followed 

 Dr. Boott in considering the C. vesicaria of most American botanists as distinct from the 

 European plant. The former differs in its larger and more inflated perigynia, and shorter 

 awnlcss scale. 



48. Carex subulata, Michx. (Plate CXLIV.) Awl-fruited Sedge. 



Sterile spike solitary, on a short peduncle ; fertile spikes mostly 3-4, sessile or with 



