CAKEX. 471 



ribs faint, beak broad bifil rough at the edges, nut obovoid rough- 

 ish. E. B. 1235. Schk. Rrr. 160. lf.b.39. R. 255. St. trian- 

 gular, smooth, a 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 parple, 2 prominent ribs always 

 green ; nut brown. Male spike with blunt glumes. Heaths 

 and moors. P. VI. VII. .E. S. I. 



63. C. Iceviydta (Sm.) ; fertile spikes remote cylindrical, stalks 

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

 nuate striate, beak long deeply bind with rough edges, nut sub" 

 pi/riform narrowed below triangular smooth, E. B. 1387. Schk. 

 Bbb. 116 & Sss. 162. H. b. 38. R. 254. St. smooth, 23 feet 

 high. Spikes distant, erect or drooping. Gl. often acute on the 

 male spike, always so on the others, purple with a paler dorsal 

 longitudinal band. Rarely 2 male spikes. Fr. green ; nut 

 yellowish. L. broad. /3. yracilis (Ar. Benn.) ; 1. much nar- 

 rower, fertile spikes short, fr. patent smaller but more 

 swollen. Marshes and wet thickets, rather rare-. P, VI. 



E. S. I. 



64. C. depauperdta (With.) ; fertile spikes erect remote 3- or 

 4-^., stalks exserted, bracts sheathing leafluke, gl. acute, fr. large 

 nearly globose, beak long bitid with rough edges, nut elliptic 

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

 1 2 feet high, trigonous, smooth. GL of the male spike blunt. 

 Fr. very large and few with many ribs-. Spikes very distant. 

 Dry woods, very rare, P. VI. E, 



ttt Beak of fr. glabrous, terete or compressed. Male spike 

 1 (rarely more;. Stigmas 3. 



65. C. sylvat'ica (Huds.) ; fertile spikes about 4 distant slightly 

 drooping linear with long half-exserted stalks, bracts leaflike 

 sheathing, fr. elliptic trigonous obscurely veined narrowed into a 

 long cloven smooth beak, nut obovoid-elliptic-triangular, 1. nar- 

 rower than in the preceding. E. B. 995. Schk. LL 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. E. S. I. 



66. C. Pseudo-cyperus (L.) ; fertile spikes about 5 drooping 

 cylindrical densely flowered stalked near together, bracts leaflike 

 scarcely sheathing, gl. setaceous rough dilated at the base, fr. 

 ovoid-lanceolate ribbed narrowed into a deeply bifid beak, nut 



