Ol'd. 2.] MONOECIA TRIANDRIA. 183 



*6. C. Vdhlii, Suppl. 2666. (Close-headed Alpine C.) Spikes 3—4, 

 roundish or oblong, aggregated ; the terminal one with barren 

 flowers at its base. Stigmas three. Fruit obovate, scabrous 

 above, with minute chrystalline prickles ; shortly beaked, longer 

 than the ovate, obtuse calyx. Stem triangular, rough at the 

 edges. 

 Alpine rocks, head of Loch Callater, in Braemar; and Glen of the 

 Dole, Clova. If. 8, 9. Stem erect, rigid. 



7. C. elongata, 27. 1920. (Elongated C.) Spikelets numerous, oblong, 



rather distant, without bracteas. Fruit ovate-oblong, tapering, 

 cloven, many-ribbed, recurved, longer than the scales. 

 Marsh., rare. If. . 6. Taller. Spikel. of a rusty greenish br., fy glossy. 



8. C. ovalis, 5. 306. (Oval-spiked C.) Spikelets about six, oval, 



crowded, alternate, with a bractea under the lowermost. Fruit 

 lanceolate, rough-edged, striated, nearly entire, the length of 

 the lanceolate acute scales. 

 Watery pi. If. 6. Larger, I — l$f. Spikel. 5 or 6, greyish, soft. 



9. C. tenella. (Slender-headed C.) Spikelets three, bracteated, 



distant, minute, of about three florets. Fruit elliptical, convex 

 at each side, very smooth and even, with a blunt, entire beak. 

 Wood, by the Esk, Angus. If. 6. Slender, smooth. 8 in. Sta?n.2. 



10. C. remota, 12.832. (Remote C.) Spikelets several, solitary, re- 



mote, simple, nearly sessile. Bracteas very long, overtopping the 

 stem. Fruit ovate, with a slightly cloven beak. 

 Moist shady pi. If. 5, 6. Pale and slender, if. Sp. pale yellow. 



11. C. axillaris, 14.993. (Axillary C.) Spikelets several, remote, 

 sessile ; the lower ones compound, with very long bracteas. 

 Fruit ovate ; its beak deepty cloven. 



Marshes. If. 5, 6. Larger and stouter. Sp. brownish. 



12. C. incurva, 13. 927. (Curved C.) Spikelets crowded into a dense 

 head. Lower florets fertile. Bracteas membranous. Stem round- 

 ish, smooth. Leaves channelled. 



Sandy sea-shore, N. of Scotl. If. 7, 8. 2 — 5 in. Sp. ovate, brown. 



13. C. arenaria, 13. 923. (Sea C.) Spikelets numerous, crowded 



into an oblong spike ; upper ones chiefly of barren, lower of fer- 

 tile, florets. Bracteas membranous ; lower ones leafy. Stem 

 triangular. Leaves flat. Fruit winged. 

 Sandy sea-shores. If . 6. \f R. long Sf cord-like, widely spreading. 



14. C. intermedia, 29. 2042. (Soft Brown C.) Spikelets numerous, 



crowded into an oblong dense spike : the lowermost and termi- 

 nal ones fertile ; intermediate ones barren. Stem upright, tri- 

 angular. 

 Marshy mead. If.. 5, 6. Taller. Spike soft, rusty brown. 



15. C. divisa, 16. 1096. (Bracteated C.) Spike dense, once or twice 

 compounded. Spikelets of barren and fertile florets ; the latter 

 inferior, most numerous. Bracteas leafy, erect. Fruit not spread- 

 ing. Root creeping. 



Marsh., near the sea.lf. 5,6. Stems iveak. Spike small, dark brown. 



16. C. muricdta, 16. 1097. (Greater Prickly C.) Spike oblong, dense, 



