376 96. CYPERACE^. 



4-4- Barren spikes usually more than 1. 



51. C. ylauca (Scop.) ; fertile spikes 2 or 3 erect or drooping 

 cylindrical densely flowered long-stalked, bracts leaflike scarcely 

 sheathing, gl. ovate acute, fr. obtuse elliptical veinless slightly 

 scabrous entire at the small point, nut roundish-ovate trian- 

 gular. H. b. 67. Sclik. O. P. 57. R. 269. C. recurva Huds., 

 E. B. 1506. Stoloniferous. St. a foot or more in height. Barren 

 spikes variable in number. Fertile spikes often with a barren fl. 

 at the summit. j3, C. Micheliana (Sm.) ; gl. blunt, fr. smaller. 

 E. B. 2236. y. C. stictocarpa (Sm.) ; fertile spikes ovate, fr. 

 obovate dotted. E. B. S. 27/2. Damp places. P. VI. 



** Beak offr. long, 2-toothed or bifid. Nut with 3 angles. 

 Stigmas 3, rarely 2. 



t Beak of fruit terete. Terminal spike barren. 



52. C. ustulata (Wahl.) ; fertile spikes 2 or 3 upon short stalks 

 ovate densely flowered, bracts scarcely leaflike or sheathing, gl. 

 ovate acute, fr. elliptical compressed rough-edged with a cloven 

 beak, nut elliptical triangular on a long stalk, root fibrous. E. B. 

 2404. Schk. Y. 82. H. b. 47- St. 310 in. high. L. very 

 short, broad. Gl. dark purple with a slender pale midrib. Fr. 

 dark purple, paler below. Nut fuscous. I have seen no speci- 

 mens. Ben Lawers. Mr. G. Don. P. VII. S. 



jtt Beak of fruit plane-convex. Barren spike 1, or rarely 2. 

 Fruit glabrous. Bracts sheathing, leaflike. 



53. C.flava (L.); fertile spikes roundish-oval subsessile, low- 

 est spike with a nearly included stalk, bracts leaflike with short 

 sheaths, gl. obtuse, fr. ovate inflated ribbed smooth narrowed 

 into a deftexed rough-edged bifid beak., nut obovate trigonous 

 punctate-scabrous, st. trigonous smooth. E. B. 1294. Schk. 

 H. 36. H. b. 22. R. 2/3. St. 612 in. high. L. broad. 

 Barren spike cylindrical, obtuse; gl. obtuse. Fertile spikes 

 usually near together and near the barren spike, sometimes di- 

 stant ; gl. with a green midrib slightly rough and often excur- 

 reiit at the end. Beak of the fr. curved downwards. Lowest 

 fr. declining. /3. C. lepidocarpa (Tausch !) ; barren spikes 

 usually long-stalked, beak of fr. often nearly straight. Kunze 

 Riedgr. 13. R. 2/2. Wet places. P. V. VI. 



[C. Mairii (C. and G. !), point of gl. scabrous, fr. obsoletelr 

 veined narrowed into a setose- ciliated beak, may occur.] 



54. C. (Ederi (Ehrh.) ; fertile spikes roundish-ovate subsessile 

 near together, lowest spike with an included stalk, bracts leaflike 

 with short sheaths, gl. obtuse (?),/r. subglobose inflated ribbed 



