3/8 96. CYPERACE^E. 



H. b. 42. R. 253. St. smooth, seldom exceeding a foot high, 

 slender. Spikes distant, short; lower ped. half exserted. Gl. 

 brownish. Fr. greenish-brown. Nut yellowish. Barren spike 

 cylindrical, clavate, with blunt glumes. Marshy places espe- 

 cially near the sea. P. V. 



59. C. binervis(Sm.}; fertile spikes remote, upper ones nearer 

 cylindrical their stalks mostly included, lower long with exserted 

 stalks, bracts sheathing, gl. mucrouate, fr. ovate triquetrous with 

 2 principal green submarginal ribs on the back, beak broad bifid 

 rough at the edges, nut obovate narrowed below roughish. E. B. 

 1235. ScM.Rrr. 160. H.b.39. R. 255. St. triangular, smooth, 

 1 foot high. Spikes often very distant ; upper stalks often quite 

 included, never much exserted, lower often greatly exserted. Gl. 

 dark purple; midrib greenish-yellow. Fr. brown or deeply tinged 

 with purple, 2 prominent ribs always green ; nut brown. Barren 

 spike with blunt glumes. Dry heaths. P. VI. VII. 



60. C. l(Bvigata (Sm.) ; fertile spikes remote cylindrical, stalks 

 more or less exserted, bracts sheathing, gl. acute, fr. ovate-atte- 

 nuate striate, beak long deeply bifid with scabrous edges, nut 

 subpyriform narrowed below triangular smooth. E. B. 1387- 

 Schk. Bbb. 116. and Sss. 162. H. b. 38. R. 254. St. smooth, 

 2 3 feet high. Spikes distant, erect or drooping. Gl. often 

 acute on the barren spike, always so on the others, purple with 

 a paler dorsal longitudinal band. Rarely 2 barren spikes. Fr. 

 green; not yellowish. L. broad. Marshes and wet thickets, 

 rather rare. P. VI. 



61. C. depavperata (Good.); fertile spikes erect remote 3 or 

 4fl., stalks exserted, bracts sheathing leaflike, gl. acute, fr. large 

 nearly globose, beak long bifid with rough edges, nut elliptical 

 trigonous with bluntish angles. E. B. 1098. Schk. M. 50. 

 St. 1 2 feet high, trigonous, smooth. Gl. of the barren spike 

 blunt. Fr. very large and few with many ribs. Spikes very 

 distant. Dry woods, very rare. P. VI. E. S. ? 



ttt Beak of fr. glabrous, terete or compressed. Barren spikes 

 1 (rarely more). Stigmas 3. 



62. C. sylvatica (Huds.) ; fertile spikes about 4 distant slightly 

 drooping linear with long half-exserted stalks, bracts leaflike 

 sheathing, fr. elliptical trigonous obscurely veined narrowed into 

 a long cloven smooth beak, nut obovate-elliptical triangular, 1. 

 narrower than in the preceding. E. B. 995. Schk. LI. 101. H. 

 b. 55. R. 242. St. about 2 feet high, smooth, its top and the 

 fr.-beak rarely a little rough. Sheaths scarcely half equalling 

 the peduncles. Gl. ovate, acute, diaphanous with a green keel. 

 Damp woods. P. V. 



