CAUHX. 
3r;7 
with 11 heak sUyhthj thickened npwardn, glmncs inucronate sliortcr 
than the fruit, st. acutely triciiietrous with seahnms angles, bracts 
setaceous. — pj.B.'MJ. Schk. C. //. a. l(i. ii. 5(i-J.— Height 
2 feet. St. tinn ; faces concave. L. broad. l*'r. jialish green. 
Heak of the nut constricted, its base narrower than the base of 
the style. — AVet jihices. P. VI. 
11. r. muricata (L.l ; spikelets a])proximate in an oblong sjiike 
dense or interruiited below, fr. ovate-acuminate plano-convex 
obsoletely nerved bifid fnelij serrate above divergent, nut ovate 
eomjiressed its beak extremely short, glumes inucronate shorter 
than the fruit, st. smooth with rough angles. — E. B. 1097- R- b()l. 
C. contigua H. a. 10. — Height 1 — 2 feet. St. slender. L. narrow. 
Lmvermost s])ikelets not more than their own length distant 
from each otlier. Fr. with a broad flat beak with very sharp 
edges. — Gravelly pastures. P. VI. 
12. C. divulsa (Good.); spikelets distant the upper ones ap- 
proximate, fr. ovate acute plano-convex obsoletely nerved bifid 
smooth ascemhng ; beak slightly rough at the edges, nut ovate- 
oblong compressed its beak extremely short, glumes inucronate 
shorter than the fruit, st. smooth with rough angles above, bracts 
short setaceous. — E.B.(V29. Schk. Dd. andWw. 82. H. a. 16. 
R. 570 . — Height 1 — 2 feet. More slender than the preceding. 
Spikelets grayish, usually distant, 1 or 2 lowest often lengthened 
into a short branch. Fr. with a thick green margin slightly 
rough near the summit. — Moist shady places. P. VI. 
13. C. teretiuscula {Good.) i spike compound oblong, s/iiSe/ets 
densely aggregated, fr. ovate-gibbous with 2 — 5 central nerves on 
the convex side ; beak bidentate serrulate subtriquetrous strongly 
winged on the convex side, nut tiu-binate convex on both sides : 
beak extremely short, style not thickened at the base, st. tri- 
gonous and scabrous above with convex faces. — E. B. 1065. 
Schk. D. 19. T. 69. H. a. 9. R. 572. — Root forming scattered 
simple tufts. St. 1 — 2 feet high, slender. — /3. Ehrhartiana ; 
root more caispitose, spike elongated, spikelets rather loosely 
aggregated, nut narrowed from below the middle, st. triquetrous 
above. C. Ehrhartiana Hoppe !, C. pseudo-paradoxa Gibs. ! — 
Boggy meadows, rare. (3. near Manchester. P. VI. 
14. C. paradoxa (Willd.) ; spikes narrowly panicled lower 
branches rather distant, fr. ovate gibbous with numerous short 
elevated ribs near its base : beak bidentate serrulate with no wing 
on its convex side, nut rbomboidal constricted below' convex on 
both sides with a short beak, style slightly enlarged at the base, 
st. trigonous and scabrous in the upper part with convex faces. 
—E.B. S.2896. Schk. E, 21. H. a. 12. R. 573.— Root densely 
tufted, erowned with the fibrous remains of decayed leaves. St. 
