392 



CYPERACEiE. 



Carex. 



included peduncles, very remote, few -flowered, often sparingly staminate at the summit ; 

 perigynium subulate, reflexed, bifid at the orifice, with the teeth reflexed ; culm very slender. 

 — Michx.fi. 2. p. 173 ; Pursh,fl. 1. p. 40 ; Schwein. $ Torr. Car. I. c. p. 340. t. 26. f. 1 ; 

 Beck, hot. p. 439 ; Kunth, enum. 2. p. 500. C. Collinsii, Nutt. gen. 2. p. 205 ; Dew. Car. 

 I. c. 11. p. 317 ; Darlingt. fi. Cest. p. 36. C. Michauxii, Dew. Car. I. c. 10. p. 273. t. G. 

 /.21. 



Culm 1-2 feet high, almost filiform, often reclining or even decumbent, obtusely triangular, 

 leafy. Leaves 1^-3 lines broad, deep green. Sterile spike 3-4 lines long; the scales 

 lanceolate, acute. Fertile spikes usually 4 on the taller culms, but often 3 and rarely 5, and 

 in the dwarf forms of the plant sometimes only 2, few- (4 - 10-) flowered ; the upper ones 

 sessile, the lower pedunculate, usually bearing several staminate flowers at the summit ; the 

 distance between the two lowest often 3-6 inches or more : fertile scales lanceolate, mucro- 

 nate, about one third the length of the perigynium, persistent. Perigynia about half an inch 

 long, very slender, slightly ventricose below, smooth, indistinctly nerved, arranged on the 

 rachis in a somewhat distichous manner : orifice very oblique, and furnished with 2 subulate 

 rigid abruptly reflexed teeth. Achenium linear-oblong, triangular, smooth, with a very long 

 slender style. 



Deep cedar swamps, Long Island. Fl. End of May. Fr. June - July. 



49. Carex folliculata, Linn. Tall Yellow Sedge. 



Staminate spike solitary ; fertile spikes 3-4 (in the dwarf form 2), ovoid, very remote, 

 pedunculate, few-flowered ; perigynia oblong-conical, somewhat inflated, tapering to a long 

 point, many-striate, at length diverging, 2-toothed at the apex, the teeth mostly erect, about 

 twice as long as the ovate mucronate scale. — Linn. sp. 2. p. 978 ; Rudge in Linn, trans. 7. 

 p. 98. t. 9.f. 4 ; Ell. sk. 2. p. 545 ; Gray in ann. lyc. N. York, 4. p. 235, not of Schk. C. 

 xanthophysa, Wahl. Cur. I. c. no. 73 ; Dew. Car. I. c. 7. p. 274, and 10. t. D.f. 15, and 14. 

 p. 353. t. R. /. 57 & 58 (varieties nana and minor) ; Schwein. $ Torr. Car. 1. c. p. 330 ; 

 Beck, bot. p. 439 ; Kunth, enum. 2. p. 500. C. folliculata, var. xanthophysa, Muhl. gram, 

 p. 244. C. rostrata, Mich. fl. 2. p. 273 ; Dew. Car. I. c. 39. p. 52. 



Culm 1-4 feet high, erect, slender, obtusely triangular, smooth, leafy. Leaves 3-5 lines 

 wide, flat, very smooth. Sterile spike nearly an inch long, on a short peduncle ; the scales 

 lanceolate, acute. Fertile spikes 4 in the tallest individuals, 2 or rarely solitary in the dwarf 

 states of the plant, 8 - 10-flowered ; the peduncles included or exserted ; the rachis produced 

 beyond the summit. Scales sometimes nearly as long as the perigynium, with a long slender 

 rough point. Perigynium 6-8 lines long, at first nearly erect, but finally spreading ; the 

 teeth at the summit sometimes a little diverging. Achenium elliptical, triquetrous, crowned 

 with the long continuous style. 



Swamps : not common. Fl. June. Fr. July. The whole plant is at first of a bright 

 green color, but is yellowish in age. There can be no doubt that this is the original C. 

 folliculata of Linnaeus. It occurs from the northern parts of Canada to Florida. 



