MONOCOTYLEDONS. RESTIACE^E. 



38. C. stricta, sheaths none, bracteas with small auricles at the 

 base short subfolmceous, fertile spikes nearly sessile cylindrical 

 filiform acuminate, fruit ovate somewhat acute plane above on 

 eachside, culm acutely triangular straight, p. 268. -Watersides. 



ft Sierile spikes several on a culm (in C.laevigata mostly solitary). 

 4- Stigmas 2. 



39. C. acuta, sheaths none, bracteas long foliaceous, fertile spikes 

 long cylindrical acuminate slender erect when in fr., fruit oval 



' swelling subacumiriate entire at the point, culm acutely angu- 

 lar scabrous, p. 269. Water-sides. 



-f--t- Stigmas 3. 



40. C. paludosa, sheaths none, bracteas very long foliaceous, scales 

 of the sterile spike obtuse, fertile spikes cylindrical obtuse, fruit 

 oblongo-ovate acute bifid at the point striated, p. 269. River* 

 banks. 



41. C. riparia, sheaths hone, bracteas very long foliaceous, scales 

 of the sterile spike acuminate, fertile spikes scarcely peduncu- 

 lated broadly cylindrical acute, fruit ovate subaciiminated bifid 

 at the point, p. 269. River-banks. 



42. C. Icevigata, sheaths elongated shorter than the flowerstalks, 

 bracteas foliaceous, fertile spikes drooping cylindrical, all the 

 scales acuminated or mucronate, fruit ovate triangular with ra- 

 ther a long acuminated beak bifid at the point, p. 269 . Marshes. 



43. C. vesicaria, sheaths none, bracteas foliaceous long, fertile 

 spikes cylindrical slightly drooping, scales lanceolate, fruit 

 broadly ovate inflated subulato-rostrate deeply bifid at the point. 

 p. 26$. Bogs. 



44. C.ampullacea, sheaths none, bracteas foliaceous, fertile spikes 

 cylindrical long nearly erect, scales lanceolate, fruit crowded 

 subglobose inflated setaceo-rostrate slightly bifid at the point. 

 p. 270. Bogs. 



45. C. hirta, hairy, sheaths elongated nearly equal to the flower- 

 stalks, bracteas long foliaceous, fertile spikes short cylindrical 

 distant their scales cuspidate, fruit ovate with a long beak 

 hairy, p. 270.- Pastures and woods. 



46. C. JiKformis, glabrous, sheaths scarcely any, bracteas long- 

 very narrow, fertile spikes shortly pedunculate oblongo- cylin- 

 drical, their scales subcuspidate, fruit ovate shortly beaked bifid 

 at the point very pubescent, p. 270. Bogs. 



ORDER III. RESTIACE^}. Br. Prodr. 



F/otfersglumaceous. Pma?z//i2 6-partite, seldom none. Slam. 

 hypogynous, 1- 6 ; when 2 or 3, in a 4 6-divided perianth, 

 opposite the inner segments of the latter. Ovary superior, 



