412 CYPERACE^. Carex. 



90. Carex miliacea, MuM. Millet-like Sedge. 

 Sterile spike solitary, pedunculate ; fertile 3, cylindrical, slender, on filiform cernuous 



peduncles ; perigynium ovoid, with a short beak, triquetrous, smooth, nerveless, nearly entire 

 at the tip, about the length of the ovate-lanceolate scale. — Muhl. in Willd. sp. 4. p. 290 ; 

 Schk. Car. t. Ooo. /. 151 ; Muhl. gram. p. 257 ; Ell. sk. 2. p. 552 ; Dew. Car. I. c. 10. 

 p. 30 ; Schwein. ^ Torr. Car. I. c. p. 353 ; Kunth, enum. 2. p. 469. C. prasina, Wahl. 

 in act. Holm. 1803. p. 161, 



Culm 12-18 inches high, erect, slender, leafy below, nearly smooth. Leaves about two 

 lines wide, as long as the culm. Sterile spike slender, somewhat clavate, 1-2 inches long, 

 often bearing fertile flowers at the summit : scales oblong, loosely imbricated, mucronate, 

 pale brown. Fertile spikes very constantly 3, somewhat approximate, 1-2 inches long ; the 

 flowers close except toward the base, where ihey are more or less distant : peduncles half an 

 inch to an inch in length. Scales acuminate, pale with a green keel. Perigynium 1^ line 

 long, very thin and membranaceous, bright green, broadish below and tapering evenly to a 

 short beak, which is minutely 2-toothcd. Achenium ovoid-triquetrous, dull. Style continuous. 



Wet meadows : frequent. Fl. May. Fr. June. 



91. Carex lacustris, Willd. Lake Sedge. 



Sterile spikes 2 - 4 ; fertile 2-3, oblong-cylindrical, stout, erect, on short or scarcely 

 exserted peduncles ; perigynium narrowly oblong, many-nerved, smooth, somewhat beaked, 

 2-toothed at ihc summit, about as long as the oblong mucronate scale. — Willd. sp. 4. p. 306 ; 

 Schk. Car. t. Ooo. /. 152 ; Pursh, ft. 1. p. 45 ; Deto. Car. I. c. 10. p. 43 ; Schwein. ^ 

 Torr. Car. I. c. p. 369 ; Kunth, enum. 2. p. 489. C. riparia, Muhl. gram. p. 259 ; Ell. 

 sk. 2. p. 554. 



Culm 3-5 feet high, stout, sharply triquetrous, leafy, rough on the angles. Leaves 3-5 

 lines wide, keeled, somewhat glaucous. Sterile spikes commonly as many as three ; terminal 

 one 1-2 inches long ; the others shorter, thick : scales oblong-lanceolate, obtuse or cmargi- 

 nale, mucronate. Fertile spikes distant, rarely four, 1-3 inches long and nearly half an inch 

 in diameter, narrowed at the base, densely fruited ; the uppermost one, and sometimes the 

 others, bearing a few sterile flowers at the summit. Scales tapering to a long narrow rough 

 point. Perigynium one fourth of an inch long, a little inflated, brown when old, gradually 

 tapering into a sort of stout beak, the apex of which is furnished with two short thick and 

 somewhat spreading teeth. Achenium obovoid, triquetrous, smoothish. Style continuous. 



Deep swamps and borders of lakes : not rare. Fl. June. Fr. July. This species diflfers 

 from C. riparia, chiefly in its narrower fruit. Prof. Dewey states that the true C. riparia 

 occurs in New-York, but I have seen no specimens. 



