CYPERACEAE 347 



HARESFOOT-LIKE CAREX. 



Culm about 2 feet high, sulcate-striate, leafy to half its height. Leaves mostly 

 longer than the culm, pale green. Spike 1 to 2 inches long. Spikelets sometimes 

 clustered into an ovoid head, under the lowest a foliaceous deciduous bract, 

 which often overtops the spike; perigynia with somewhat diverging points, and 

 rather narrow ciliate-serrulate margins. 

 Hab. Swamps, and low grounds : frequent. Fl. May. Fr. July. 



Obs. This has been sometimes reduced to a var. of the preceding. 

 Indeed, there is a strong family resemblance among the whole four 

 species, of this subdivision, from number 10 to 13, inclusive. 



12. C. festucacea. Schk. Spikelets 5 to 8, obovoid, or clavate, 

 the lower ones distinct; perigynia ovate, acuminate, rather 

 narrow-margined, longer than the lance-ovate acute scale. 

 FESTUCA-LIKE CAREX. 



Culms 2 to 3 (and sometimes 4) feet long, often decumhent, smooth, sulcate-stri- 

 ate, leafy. Leaves shorter than the culm. Spike 1 to 2 or 3 inches long. Spikelets 

 sometimes rather distant, at first oval, then obovoid from being staminate at 

 base, and finally subglobose. Bracts lanceolate, shorter .than the spikelets. Peri- 

 gynia striate, the margins serrulate. 

 Hab. Meadows, and open woodlands: frequent. Fl. May. Fr. July. 



13. C. straminea, Schk. Spikelets 3 to 6 (usually 5), roundish- 

 ovoid, approximated; perigynia orbicular-ovate, abruptly acumi- 

 nate, broadly margined, a little longer than the lanceolate slightly 

 mucronate scale. 



STRAW-LIKE CAREX. 



Culms 1 to 2 feet high, roughish, leafy. Leaves shorter than the culm, the 

 lower ones abbreviated. Spike 1 to 1*^ inches long. Spikelets each with an ovate 

 cuspidate bract at base, the setaceous points of the two lower bracts sometimes 

 longer than the spikelets. Akene much smaller than its envelope. 

 Hab. Moist, low grounds : frequent. Fl. May. Fr. July. 

 C. Spikelets more or less stalked, wholly staminate and pistillate (or 

 occasionally somewhat androgynous), separate on the same culm, the 

 etaminate ones constantly above : stigmas mostly 3. 



a. Perigynia with a minute, or short point, not prolonged into a beak. 



gl. Perigynia not (or but slightly) inflated; staminate epikelets 1 to 3,w t7ie ter- 

 minal one androgynous. 



14. C. Stricta, Lam. Pistillate spikelets 2 to 4, cylindric, slender, 

 the upper ones sessile, often staminate at summit; perigynia 

 ovate, acute, about as long as the lanceolate scale. 



C. acuta. Muhl. $ FL Cestr. ed. 2. p. 41. not of L. 

 UPRIGHT CAREX. Tussock Sedge. 



Culms 1 to 2 feet high, rather slender, deeply striate, very acute and scabrous on 

 the angles, leafy at base, remarkably cespitose. Leaves linear, keeled, often 

 longer than the culm, radical ones very numerous ; sheatfis striate, sometimes 

 filamentous. Stam. spikelets 2 or 3 (often solitary), % an inch to near 2 inches in 

 length. Pistillate spikelets % to 1% inches long, the lowest on a very short 

 peduncle ; scale* reddish brown, with a green keel , variable in length and acute- 



Hab. Swamps, and low grounds: common. Fl. April. Fr. June. 



