Carex. 



CYPERACEjE. 



393 



60. Carex intumescens, Rudge. Swollen-fruited Sedge. 



Fertile spikes 1-2, roundish, approximate, few-flowered, upper one sessile, lower one on 

 a short peduncle ; perigynia ovoid, acuminate-rostrate, much inflated, diverging, bicuspidate. 

 — Rudge in Linn, trans. 7. p. 97. t. 9./. 3 ; Gray in ann, lyc. N. York, 3. p. 236 ; Torr. 

 Cyp. I. c. p. 420 ; Darlingt. fl. Cest. p. 36. C. folliculata, Schk. Car. t. N. /. 52, not of 

 Linn. ; Pursh, ft. L p. 42 ; Muhl. gram. p. 43 ; Dew. Car. I. c. 10. p. 32 ; Schwein. 

 Torr. Car. I. c. p. 338 (excl. syn. Linn., Michx. Ell.) ; Beck, hot. p. 438 ; Kunth, enum. 

 2. p. 498. 



var. globularis : culm taller and stouter ; fertile spikes many- (20 - 30-) flowered. Gray, 

 I. c. ; Torr. I. c. 



Culm about a foot and a half high, triquetrous, smooth, slender, leafy. Leaves broadly 

 linear, dark green, slightly rough on the margin, taller than the culm. Sterile spike 1-2 

 inches long, erect, slender ; the peduncle 1-3 inches long : scales lanceolate, acute. Fertile 

 spikes mostly 2, but often solitary, rarely 3, usually close together, 6 - 10-flowered ( in the 

 variety often 25-flowered), more than an inch in diameter, sometimes with a few staminate 

 flowers at the summit. Scales much shorter than the perigynium, ovate, acuminate. Perigynia 

 about 7 lines long and 3i lines in diameter at the base, dark green, tapering into a long conical 

 beak, smooth and nerved, somewhat shining ; the upper ones spreading almost horizontally ; 

 lower ones a little reflexed. Achenium triquetrous, grayish white, acuminated with the base 

 of the long continuous style. 



"Wet meadows and swamps : frequent : var. globularis, meadows near Utica (Dr. Gray). 

 Fl. June. Fr. July - August. 



51. Carex lupulina, Muhl. Hop Sedge. 



Fertile spikes mostly 3, nearly sessile, ovoid-oblong, very thick, erect, approximate ; peri- 

 gynia ovoid, inflated, nerved, conical-rostrate, bicuspidate, much longer than the ovate or 

 lanceolate scale. — Muhl. in Willd. sp. 4. p. 266, and gram. p. 241 ; Schk. Car. t. Ddd. 

 /. 123, and t. Iiii. /. 194 ; Ell. sk. 2. p. 544 ; Schwein. Torr. Car. I. c. p. 337 ; Dew. 

 Car. I.e. 11. p. 165. t. L. /. 37 ; Beck, hot. p. 438 ; Darlingt. fl. Cest. p. 35 ; Kunth, 

 enum. 2. p. 497. 



var. polystachya : fertile spikes 4-5, oblong-cylindrical ; the lowest one remote on a long 

 peduncle. Torr. I. c. ; Dew. I. c. ; Beck, I. c. ; Kunth, I. c. 



Culm 2-3 feet high, stout, triquetrous, smooth. Leaves overtopping the culm, 3-4 

 lines broad, bright green. Sterile spike usually solitary, either nearly sessile or pedunculate ; 

 in the latter case, furnished with a foliaceous bract : scales narrowly lanceolate, tapering to a 

 long hispid point. Fertile spikes mostly 3, but often 4, rarely only 2, an inch and a half or 

 two inches long and as thick as a man's thumb, the lowest more or less pedunculate ; in the 

 var. 2-3 inches long, and the lowest on a long exserted peduncle. Scales rather more than 

 half the length of the perigynium ; the upper ones ovate ; lower lanceolate. Perigynia 6-8 

 [Flora — Vol. 2.] 50 



