456 97. 



as long. Lower bract with a slender leaflike point [sometimes 

 exceeding the spike]. Marshy places. P. V. VI. E. S. I. 



7. C. arendria (L.) ; spikelets in an oblong interrupted spike 

 upper ones male lower fertile intermediate male at the end, /K 

 ovate veined winged and serrulate from the middle to the bifid 

 top of the beak, nut bluntly ovoid, glumes longer than the fr. 

 acuminate, st. rough above. E. B. 921. Sclik. B. & Dd. 6. 

 H. a. 13. R. 209. Height 1 foot. Sobole superficial, very 

 long. Lowermost bracts with slender leaflike points 1 . Stindy 

 places. P. VI. E. S. I. 



ff Spikelets male at the top. J Sobole far-creeping. 



8. C. incur 1 va (Lightf.) ; spikelets in a roundish head, fr. 

 inflated broadly ovoid acuminate-rostrate, beak split externally, 

 nut obovoid, st. smooth about equalling the leaves. E. B. 927. 

 Schk. Hh. 95. H. a. 5. R. 199. St. 23 in. high, usually 

 recurved so as to bring the large head down to the ground. 

 Beak of fr. usually rather rough. [A tall form with almost erect 

 heads is var. erecta (0. F. Lang).] Sandy shores of the North. 

 P. VI. E. S. 



9. C. cTiordorrhiza (Ehrh.) ; spikelets crowded in a small shortly-ovate 

 head, fr. inflated ovoid brown shining with darker brown veins narroiving 

 somewhat suddenly into an inconspicuously bifid beak, nut roundish, gl. 

 Hunt with a membranous margin, st. smooth exceeding the I. J. ofB. 

 xxxvi. (1898) p. 73, t. 383. Stems upright branched 6 12 in. high, the 

 base with very short sheathing 1. Bracts acuminate scarious the lower- 

 most about equalling its spike. Very wet bogs, Altuaharra, Sutherl. 

 Messrs. E. S. Marshall $ W. A. Shoolbred. P. VII. VIII. S. 



10. C. diiisa (Huds.) ; spikelets in a somewhat ovate head, fr. 

 plane-convex ovoid many-veined, beak acutely bifid with finely 

 serrate edges, nut broadly oblong, gl. with an excurrent rib, st. 

 rour/hish at the top. E. B. 1096. St. slender, a foot high. 

 Lowermost bract (brown) scarious, often prolonged into a slen- 

 der green point sometimes overtopping the spike. Fr. veined 

 on both sides. Spike often interrupted below. Near the sea 

 on the Southern and Eastern coasts. P. V. VI. E. I. 



\\ Ccespitose. Spike simply compound. Fr. squarrose, not 

 gibbous. 



11 . C. vulpina (L.) ; spikelets compound in a cylindrical oblong 

 crowded spike, fr. ovoid-acuminate plane-convex veined, beak 



1 Specimens with some female fl. in the upper spikes have been named 

 var. Ugerica (J. Gay) but we have seen none like the French plant. 

 H. & J.G. 



