CAEEX. 399 



K B. S. 2910. S. a. 34. Kunze Riedg. 22. R. 219.— St. 1—2 

 feet high, triangular with slightly convex faces and rough edgea. 

 Inflorescence often a foot long. Kachis straight, with 3 rough 

 edges. Gl. orate, membranous, silvery hvown, smooth. Lower 

 gpikelets wholly male, male at both ends or at either end. Bracts, 

 except the lowest, short. L. channelled. — Marshes and pond- 

 sides, rare. P. VI. " E. S. 



17. C. axillaris (Good.) ; spikelets several upper ones simple 

 crowded lower distant densely compound, fr. ovoid-lanceolate 

 plane-convex tapering deeply bifid serrulate above the middle, 

 nut obovoid with a beak, gl. shorter than the fruit, root tufted, 

 lower bract as long as or longer than the spike. — JE. B. 903. H. 

 a. 33. — St. 1 — 2 feet high, acutely triangular. Rachis straight, 

 with 3 rough angles. Gl. ovate, membranous, brownish ; mMrih 

 often rough, extending to the point. Divisions of the lower 

 spikelets crowded into the axils of the bracts. Bracts, except 

 the lowest, short. L. flat. Spikelets male at the base or at 

 both ends.— Marshes, rare. P. VI. E. S. I. 



18. C remdta (L.) ; spikelets several all simple upper ones 

 crowdedlower distant, fr.ovoid-acuminateplane-convexnotched 

 at the end serrulate above, nut ovoid with a beak, gl. shorter 

 than the fr., root tufted, bracts long.— £ B. 832. Schk. E. 23. 

 H. a. 36. iJ. 212. — St. 1 — 2 feet high, trigonous. Rachis mth 

 2 rough angles in its upper part. Gl. oblong, membranous, 

 greenish white ; midrib smooth, usually not reaching the point. 

 Several of the bracts long. L. channelled. Sometimes with a 

 thick rooting densely proliferous rhizome. C. tenella (Sm. not 

 Schkr.) is a starved form. — ^Damp places. P. VI. E. S. I. 



XXX Ctsspitose. Bracts not leaflike. Spikes contiguous or 



4- Spikes and leaves glaucous or dusky. 



19. C. stelluldta (Good.) ; spikelets about 4 globose rather dis- 

 tant, fr. divergent broadly ovoid acuminate plane-convex stri- 

 ate, beak bifid with serrate edges, nui ovoid abruptly narrowed 

 below, gl. shorter than the fruit.— ^. B. 806. Schk. C. 14. H. 

 a. 28. R. 214. — St. 6 — 12 in. high, triquetrous, nearly smooth. 

 Lowermost spikelet often with a short bract. Gl. ovate, mem- 

 branous, reddish with a green keel and white edges. Ripe fr. 

 greenish, stellate. — Boggy places. P. V. VI. E. S. I. 



20. O. elongdta (L.) ; spikelets many oblong contiguous, fr. 

 patent oblong-acuminate plane-convex with many ribs on both 

 sides, beak almost entire with rough edges, nut linear-oblong 

 tapering below beak very short style persistent, gl. shorter than 



