Carex. CYPERACEvE. 377 



diverging almost horizontally, distinctly 3-nerved on the convex side, 2-nerved on the flat side, 

 yellowish green when mature. Achenium broadly ovate-lenticular, crowned with the somewhat 

 articulated style. 



Low grounds : common. Fl. May. Fr. June. 



1 7. Carex setacea, Dew. Bristly-spiked Sedge. 



Spike oblong, decompound, bracteate ; spikelets glomerate, ovoid, obtuse ; perigynia ovate- 

 lanceolate, acuminate, compressed, bifid at the point, somewhat diverging, strongly serrulate- 

 hispid on the margin, about the length of the ovate-lanceolate awned scale. — Dew. Car. I. c. 

 9. p. 61. t. 2./. 5 ; Schwein. <^ Torr. I. c. p. 307 ; Kunth, enum. 2. p. 382. 



Culm I5 - 2 feet high, triquetrous with the sides striate, very rough on the angles above, 

 leafy. Leaves 2-3 lines wide. Spike about 2 inches long, sometimes dioecious, appearing 

 bristly from the numerous bracts. Spikelets very numerous, aggregated into several ap- 

 proximated clusters, tawny when old. Scales light brown, green on the keel ; the bristle-like 

 tip extending to the apex of the fruit. Perigynium plano-convex, obscurely 3 - 5-nerved, 

 yellowish when mature. Achenium ovate, lenticular. Style somewhat articulated. 



Wet meadows, in the western part of the State. Fl. June. Fr. July. Very near the 

 preceding species, but differs in the more compact spike ; the perigynia also are narrower, 

 more compressed, less diverging, and the margin more strongly serrulate, 



18. Carex bromoides, Schk. Bromus-like Sedge. 



Spikes 4-6, alternate, oblong-lanceolate, erect, the uppermost one fertile at the summit , 

 the others either wholly pistillate or androgynous, with staminate and fertile flowers both at 

 the base and apex ; fruit lanceolate, nerved, erect, acuminate, rough on the margin, longer 

 than the lanceolate scale. — Schk. Car. 2. p. 8. t. Xxx.f. 176 ; Pursh, fl. I. p. ]35 ; Muhl. 

 gram. p. 217 ; Ell. sk. 2. p. 528 ; Dew. Car. I. c. 8. p. 264 ; Schwein. 4- Torr. I. c. p. 300 ; 

 Beck, hot. p. 431 ; Darlingt. fl. Cest. p. 31 ; Kunth, enum. 2. p. 377. 



Culm 1-2 feet high, slender, triquetrous, rough on the angles above. Spikelets 4-6 lines 

 long, sometimes only 3, but usually 4 ; the lower ones rather distant ; the uppermost one 

 mostly with a very few staminate flowers below, or occasionally with 1 or 2 at the summit ; 

 the others varying, either wholly fertile, or with a few sterile flowers above or below. Oc- 

 casionally the plant is somewhat dioecious or polygamous ; some individuals being entirely 

 sterile, while others are fertile. Scales broadly lanceolate, light brown, with an abrupt 

 mucronate point. Fruit conspicuously striate ; the lower third solid and corky ; the point 

 slightly bifid. Achenium ovate-oblong, obtuse, crowned with the articulated style. 



Wet meadows and swamps. Fl. May. Fr. June. 



[Flora — Vol. 2.] 48 



