392 97. OlTEBACE^. 



X Stigmas 2. Sheaths of leaves webbed. Fertile spikes erect. 

 L. ultimately revolute-edged ; lowest sheaths usually leafless. 



25. C. stric'ta (Good.) ; fertile spikes erect long cylindrical, 

 bracts auxicled lowermost leaflil£e snort, fr. oblong-elliptic acute, 

 compressed veined closely imbricate, nut roundly obovoid shortly 

 beaked, sheaths of 1. "with^lamentous network. — U. B. 914. M. 

 2S0. C. ceespitosa Gay. — Densely ccBspitose. St. 2 — 3 ft. high, 

 triquetrous, rioid. L. short, narrow. Fertile spikes ofteij male 

 at the top. Gl. blunt or acute, equalling or shorter than the 

 fr., narrow, dark purple ; keel green. Fr. in 6 — 9 regular 

 rows.— Marshes. P. VI. E. S. I. 



[C. ccsspitdsa (L.) ; fr. elliptic lenticular not veined rather 

 patent, sheaths of 1. finely webbed. — R. 229. B. t. 62. C. pa- 

 cifica Drej. — Probably never found in Britain. Gre-ville so 

 named a Bmall form of C. aquatilis.1 



Xt Stigmas 2. Sheaths not webbed, usually all hearing leaves, 

 L. ultimately revolute-edged, Stoloniferous. 



26. C. acuta (L.) ; male spikes 1 — 3, fertile 2 — 4 slender cylin- 

 drical-acuminate erect with fruit, lowermost bract leaflike often 

 overtopping the stem vnth long auricles, fr. oblong lenticular 

 veined, nut roundish-obovoid with a short slender beak, gl. acute. 

 —E. B. 580. Schk. Ee. & Ff. 92. E. a. 44. R. 231, 232.— St. 

 2 — 3 feet high, triquetrous, rough at top. L. broad. Gl. narrow- 

 lanceolate, acute, on the male spikes spathulate-lanceolate, 

 purple with a green keel. Fr. pale, blunt or acute, romid or 

 oval, spherical or flattened. Fertile spikes usually with a few 

 male fl. at the end, nodding with flowers. — Syme mentions a 

 csBspitose form or distinct species (C. prolixa Fr. ?). — Wet 

 places. P. %n[. E. S. L 



27. C rig'ida (Good.) ; spikes erect, male 1, fertile oval or 

 shortly cylindrical dense subsessile, lower braet leaflike, fr. 

 elliptic lenticular without veins, mit roundish blunt with a slender 

 beak, st. triquetrous rough towards the top, I. curving outwards 

 with deflexed edges.—H. B. 2047. JI. a. 40. S. 225. C. sasa- 

 iilis L. ? — St. 6 in. tO' a foot or more high. L. broad, flat, keeled, 

 rigid. Bracts without sheaths. Spikes near together, short, 

 rarely nai-rowed and laxly flowered below. Gl. about exceeding 

 the fc., purple with a green keel. Nut rather longer tlian 

 broad. — In wet and stony places on moimtains. P. vl. VII. 



E.8. L 



XXi stigmas 2. Sheaths not webbed. Fertile spikes erect. 

 Edges of leaves tdtimatelg involute. Glumes narrower than 

 the fruit. 



28. C. aquat'itis (Wahl.); spikes erect, male I ormore, fer- 



