346 ENDOGENOUS PLANTS 



Culms 1 to 2 feet high, naked above, leafy near the base. Leaves often very 

 long, channelled, with a rounded and prominent midrib. Spike }/ 2 an inch to % 

 in length, somewhat 3-lobed at base. Bracts, at the base of the spike, 2, subulate, 

 or filiform, scarcely equalling it in length, generally spreading or recurved. 

 ffab. Hilly, grassy woodlands : frequent. Fl. May. Fr. July. 



7. C. Muhlenbergll, Schk. Spikelets 5 to 7, roundish-oval, 

 closely approximated in an oblong head ; perigynia orbicular-ovate, 

 nerved on both sides, rather shorter than the ovate mucronate scale. 

 MUHLENBERG'S CAREX. 



Calms 1 to 2 feet high, leafy below. Leaves about as long as the culm, the 

 lowest ones short ; sheaths scarious, and often transversely rugose, opposite the 

 leaves. Spike about an inch long. Spikelets rather clustered, the uppermost 

 often almost entirely staminate ; the others with each an ovate-lanceolate bract at 

 base, ending in a scabrous awn longer than the spikelet. 

 Sab. Hill sides; foot of Serpentine ridge: not common. Fl. May. Fr. July. 



8. C. rosea, Schk. Spikelets 3 to 6, the 2 uppermost approx- 

 imated, the others mostly remote ; perigynia few (8 or 10), oblong- 

 ovate, at length widely and rosaceously diverging, nearly twice as 

 long as the broadly ovate obtuse scale. 



HOSE-LIKE CAREX. 



Culms 9 to 18 inches high, slender, leafy near the base. Leaves narrow-linear, 

 often as long, or longer than the culm, the lower sheaths often without laminae, 

 or with very short ones. Lower spikelets nearly an inch apart, the lowest one 

 with a setaceous bract often overtopping the culm; perigynia with acute margins, 

 which are somewhat incurved. 

 Hob. Moist woodlands, and low grounds : frequent. Fl. May. Fr. July. 



3. Spikelets pistillate at summit. 

 f Spikelets small ; perigynia with rigid narrow margins. 



9. C. stellillata, Gooden. Spikelets 3 to 5, distinct, obovoid ; 

 perjgynia ovate, subcordate at base, finally diverging, longer than 

 the ovate acute scale. 



STAR-LIKE CAREX. 



Culms 6 to 12 and 18 inches high, leafy toward the base. Leaves generally 

 longer than the culm, linear and erect, the lower ones short. Uppermost spikelets 

 etaminate at base, so as to give it a turbinate, or clubshaped appearance, the 

 lowest one bracteate at base. 



ffab. Woodlands, and meadows : frequent. Fl. May. Fr. July, 

 ft Spikelets rather large, mostly straw-colored; perigynia with broadish membrana- 

 ceous margins. 



10. C. SCOparia, Schk. Spikelets 5 to 8 or 10, obovoid, finally 

 ovoid, crowded in a dense subclavate head; perigynia lanceolate, 

 tapering to a long beak, longer than the lanceolate acuminate scale. 

 BESOM-LIKE CAREX. 



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

 Spike (or cluster) 1 to 1% inches long, somewhat nodding, brownish straw-colored 

 at maturity. Lowest spikelet with a deciduous bract as long as the spike, the 

 others with glume-like bracts, terminating in long setaceous points. 

 Hab. Swamps, and wet meadows : frequent. Fl. May. Fr. July. 



11. C. lagopodioides, Schk. Spikelets 10 to 15 or 20, oval, 

 approximated in an oblong spike ; perigynia ovate-lanceolate, nearly 

 twice as long as the ovate-oblong rather obtuse scale. 



