CYPERACEAE. 



VOL. I. 



161. Carex complanata Torr. Hirsute Sedge. Fig. 1028. 



Carex triceps Michx. Fl. Bor. Am. 2: 170. 1803. Not 



Schrank. 1789. 



Carex hirsuta Willd. Sp. PI. 4: 252. 1805. Not Suter, 1802. 

 Carex complanata Torr. Ann. Lye. N. Y. 3 : 408. 1836. 

 Carex triceps var. hirsuta Bailey, Mem. Torr. Club i : 35. 



1889. 



Light green, culms slender, rough above, erect or re- 

 clining, 6'-3 high. Leaves i"-2" wide, pubescent, at 

 least on the sheaths, shorter than the culm, the lower 

 bract similar, much exceeding the culm ; spikes 2-5, 

 oblong or oblong-cylindric, dense, erect, sessile or very 

 nearly so, 3" -9" long, 2i"-3i" in diameter, usually 

 clustered at the summit, the terminal one gynaecan- 

 drous ; perigynia oval or obovoid, flattened, not inflated, 

 green or greenish-brown, lightly nerved, imbricated, 

 slightly pubescent when young, glabrous when mature, 

 i" long, beakless and very rounded at apex, the orifice 

 entire ; scales ovate, scarious-margined, short-cuspidate 

 to obtuse, rather shorter than the perigynia ; achene 

 elliptic-obovoid, its summit straight, but style often 

 short-bent; stigmas 3. 



In woods, fields and swamps, Maine to southern Ontario 

 and Michigan, south to Florida and Texas. Ascends to 2500 ft. in Virginia. April-Aug. 



162. Carex caroliniana Schwein. 

 Sedge. Fig. 1029. 



Carolina 



Carex carolinana Schwein. Ann. Lye. i : 67. 1824. 

 Carex Smithii Porter ; Olney, Car. Bor. Am. 2, name only. 



1871. Not Tausch. 1821. 

 C. triceps var. Smithii Bailey, Bot. Gaz. 13: 88. 1888. 



Culms very slender, erect, rough above, i-2i tall. 

 Leaves i"-il" wide, rather dark green, glabrous, ex- 

 cept on the sheaths, the upper and the similar but nar- 

 rower bracts usually much overtopping the spikes ; 

 spikes 2-4, oblong, dense, sessile or nearly so, 4"-o/' 

 long, 2" in diameter, erect, clustered at the summit, 

 the upper gynaecandrous ; perigynia squarrose, obovoid, 

 swollen, and orbicular in cross-section, i" long, 

 about i" in diameter, not imbricated, coarsely nerved, 

 brown, glabrous at least when mature, pointed at apex, 

 the orifice entire or emarginate ; scales brown, ovate, 

 mucronate ; achene pyriform, bent at the summit or 

 tipped with a bent style; stigmas 3. 



In meadows, New Jersey and Pennsylvania to North 

 Carolina and Texas. May-July. 



163. Carex Bushii Mackenzie. Bush's Sedge. 

 Fig. 1030. 



C. hirsuta var. cuspidata Dewey, in Wood's Class-book, 



758. 1863. Not C. cuspidata Wahl. 1803. 

 Carex Bushii Mackenzie, Bull. Torr. Club 37 : 241. 1910. 



Culms slender, erect, roughish above, i$-2i tall. 

 Leaves i"-ii" wide, glabrous or pubescent beneath, 

 the sheaths pubescent, the upper and the similar but 

 reduced bracts much overtopping the spikes ; spikes 

 2 or 3, oblong or oblong-cylindric, dense, sessile or 

 nearly so, 3"-io" long, 2i"-4" in diameter, erect, 

 clustered at the summit, the upper gynaecandrous; 

 perigynia ascending, obovoid, orbicular in cross- 

 section, ii"-ii" long, swollen, not imbricated, about 

 I" in diameter, coarsely ribbed, green, glabrous 

 when mature, pointed at apex, the orifice entire or 

 emarginate ; scales lanceolate, the middle and^ lower 

 strongly rough-cuspidate, exceeding perigynia ; 

 achene obovoid, tipped with a bent style ; stigmas 3. 



In meadows, Rhode Island and New York to South 

 Carolina and Oklahoma. May-July. 



