

MONOCOTYLEDONS. CYPEKAC&E. Carex. 175 



a roundish head, fruit broadly rotundato-ovate shortly acumina- 

 ted swellingon both sides nearly entire at the point, culm obtuse- 

 ly angular, leaves channelled, p. 261. Sandy sea-shores, rare. 



6. C. arenaria, lower spikelets fertile upper ones sterile all 

 crowded, fruit with a membranous margin, bracteas membra- 

 naceous the lower ones subfoliaceous, culm triangular, leaves 

 plane, p. 26 1 . Sandy sea-shores. 



l.C. intermedia, inferior and terminal spikelets fertile, the in- 

 termediate ones sterile, fruit acutely margined, culms triangu- 

 lar, p. 262. Marshes. 



S. C. divisa, spikelets sterile at their extremity crowded into a 

 somewhat ovate head, the lower ones simple or compound 

 with a leafy erect bractea at their base, fruit roundish ovate 

 convex on one side slightly concave on the other acutely an- 

 gular cloven at the point, p. 262. Marshes. 



9. C. rnuricata, spikelets sterile at their extremities subcom- 

 poundad collected into a rather long more or less interrupted 

 spike, fruit convexo-plane ovato-acuminate acutangular diver- 

 gent rough at the margin upward, p. 262. Marshes. 



10. C. vulpina, spikelets sterile at their extremities thrice com- 

 pounded collected into a cylindrical crowded spike, fruit ovate 

 acuminated convexo-plane acutangular divergent, stem very 

 acutely triangular, leaves rather broad, p. 262. Watery places. 



11. C. panicnlata, spikelets sterile at their extremity thrice 

 compounded and collected into a panicled spike, fruit broadly 

 ovate acuminated gibbous on both sides with a somewhat mem- 

 branaceous margin towards the extremity, p. 262. Marshes. 



ft Spikelets sterile at their base. 



12. C. slellulata, spikelets sterile at their base 3 or 4 distant, fruit 

 ovate much attenuated convex or plane acutangular divaricated 

 rough at the margins, p. 263. Moist heaths. 



13. C. curia, spikelets sterile at their base about 5 rather distant 

 elliptical, bracteas very minute (except the lower one), fruit 

 broadly ovate acute convex on one side and nearly plane on the 

 other subobtusangular with 2 teeth at the extremity, p. 263. 

 Bogs. 



14. C. ovalis, spikelets sterile at the base oval about 5 approxi- 

 mate, fruit as long as the scale ovato acuminate convex on one 

 side concave on the other with a membranaceous margin, bifid 

 at the point, p. 263. Marshes. 



15. C. remota, spikelets sterile at the base distant, fruit longer 

 than the scale oblongo-ovate acuminate convexo-plane sub- 

 acutangular obtuse at the margins the point bifid, bracteas very 

 narrow reaching beyond the culm. /;. 263. Woods, 



