CYPEBACE^- 418 



3. Staminate spikes one or more, and the vpper part of the pistillate sometimes staminate. 



42. C. ri'giua. Good. 



Staminate spike oh\ong, cy]\n(\nc, rarely 2; pistillatr. spikes 2 — 3, oblong, 

 cylindric, densely flowered, short and thick, approximate, lower one subpedi- 

 cellate, with a bract surpassing the stern ; pcrig. ovate, obtusish, entire at the 

 orifice ; glumfi nearly twice longer than the mature fruit and subequal before; 

 stem's — d inches high, tirick and stiff, often recurved ; /cares stiff and glaucous. 

 Ipswich, Ms. Oakes. Has been compounded with C.cccspilosaiiW this time. 



43. C. CvESPITo'SA. L. 



Sia?«r/ia/e s/^jAe single, oblong, cylindric, sometimes 2, with oblong black 

 scales ; p'stillule spike 2 — 3, cylindric, obtuse, rather thick, remotish, bracleate, 

 lowest one short pedunculate ; -jierig. ovate, obtuse, glabrous, entire at the 

 orifice, scarcely rostrate, a little longer than the oblong, obtuse, black glume ; 

 stem G — 14 inches high, scabrous on the edge, lealy towards the base ; leaves 

 flat. Wet places, Ipswich, Mass. Oakes; N. York and Michigan. 



44. C. STRic'TroR. Dew. C. stricta. Goodn. 

 Staminate sp kes 1 — 2, with oblong and blackish acutish glumes; pis!illate 



spikes 2 — 3, cylindric, staminate above, and hence acutish, lowest short- 

 pedunculate ; perig. ovate, compressed, acute, glabrous, entire at the orifice, 

 early falling off, glabrous, a little longer than the oblong and acute glume; 

 stem a toot and more high, triquetrous and rough on the angles, with reticu- 

 lated filaments connecting the leaves towards the base ; leaves erect, close; 

 whole plant glaucous except the spikes. Wet places; common. 



45. C. STRICTA. Lfim. C. acuta, of American authors in part. 

 SlainiiKite spikes 1 — 2, cylindric, lower one sessile, and the scale rusty 



brown and obtuse, pstillnte spikes 2 — 3, long cylindric, upper half slaniii, ale, 

 lower longer, short-pedunculate, loosely flowered below; pcrig. ovate-acumi- 

 nate or elliptic, compressed, at the orifice entire or slightly emarginate and its 

 glume strongly ferruginous, the lower ones acute-lanceolate, the upper linear 

 and obtuse, commonly longer and narrower than ttie perigynia ; s em 2 feet 

 high, with reticulated filaments connecting the leaves. Boott. Wet places, 

 as bogs ; common. 



46. C. ACUTA. L. C. csDspitnsa of Am authors in part. 

 Spikes long and slender; slaminnte 2 — 3; pistiWite'i — 4, long, slerrder, 



cylindric, short pedunculate, nodding towards nraturity, remotish, bracleate ; 

 perig. oval or oblong, obtuse, orifice |)rotended, or very short-rostrate, about 

 equaling the oblong, acute glume; sicm acute, triquetrous, lax ; the stamens 

 at the summit of the pistillate spikes render them acute. Common. 



/3. erecta (Dew. Schk. fi^. 85, c) ; spikes shorter, 2 of each ; pisli'late nearly 

 erect, oblong, close-flowered ; perig. shorter than the ovate-lanceolate glume. 

 Evidently mrsplaced by Sclikahr. 



y. sparsiflirra {Dew. Schk. fig. 92, b.) ; pistillate spikes very long, recurved, 

 very sparsely flowered below Coirrmon. 



47. C. AqUA'TiLis. IVafd. 



Staminate sp kes 1 — 4. erect, cylindric, lowest bracteate, the glume oblong, 

 obtusish ; pistillate spikes often 3, cylindric, thick and thickened above, 1 — 2 

 inches long, suberect, short-pedunculate, densely flowered; perig- elliptic, 

 lenticular, rather small, entire, glabrous, protruded at the orifice, about equal 

 lo the ovate, acutish glume ; stem 20 — 3U incires high, rather obtuse-angled 

 and scarcely scabrous. In marshes and wet places. Common. 



48. C. crini'ta. Lam. C. leonura. IVahl. Schk. fig. 1G4. 

 Staminate spikes one or more, lax, oblong, sometimes with a few pistillate 



flowers; pistillate spikes about 3, oblong, cylindric, pedicellate, nodding, 

 attenuated below, and more loosely flowered, often staminate at summit; 

 perig. ovate, sub-inflated, short-rostrate, entire at the orifice, glabrous, about 

 A as long as the oblong, obtusish, scabrous-awned glume ; stem, 12 — 24 inches 

 high, rough, triquetrous. Common in wet places. 



