96. crPEEACE^. 369 



,\BriAs about 6. Xid eompresaed, convex on both sides 

 crowned tDvth the dilated base of the style. 



** Lowest glume empty or larger dhan the others, sometimes all 

 fertile. 



t Bristlep scarcely equalling- the glume or wanting. 



5. Eleochabis. One or 2 lowest gl. broader, empty. Bris- 

 tles 8 — 6. Nut compressed, crowned with the persistent 

 dpated base of the style. 



6. ScjBFDS. Gflumea nearly equal ; or 1 or 2 lowest broader, 

 empty. Bristles about 6 or 0. Niii plane-convex or tri- 



; gonous; base of the style filiform, not dUated. 



7. BLTSirus. Two lowest gl. broader, and empty. Bristles 

 S — 6. Nut plane-convex, tipped with the not dilated base 

 of the style. Spikelets with bracts, alternate, forming a close 

 distichous compound terminal spike. 



tt Bristles ultimately much exceeding the glumes. 



8. Ehiophokum. Glurnes nearly equal, lowest sometimes 

 empty. Bristles-ultimately silky. Nut trigonous. 



H^.m.. ELTNR^. Fl. vmisexual. Perianth or foi-med of 



1 .or 2 scales. 



9. KoBKEsiA. Spiies close together. Lower fl. fem., peri- 

 anth of 1 scale encldsing the germen and covered by the 

 glume. Upper fl. male, without any perianth. 



Tr. IT. CASICJE^. Fl. unisexual. Nut completely enclosed 

 in the bottle-shaped perianth. 



10. Cabex. Fl. inj imbricate spikes, each covered by a 

 glnme. Female fl. with a single bottle-shaped persistent 

 perianth, 1 style and 2—3 stigmas. Male fl. of 3 stam., 

 without a perianth. 



Tribe I. Cyperecs. 



1. Ctpb'etjs Linn. . GaJingale. 



1. C. Imigus (Ij.)5 spikelets linear-lanceolate in twice-com- 

 pound um.bels, peduncles of partial umbels erect unequal, stig- 

 mas 3, creeping.— -E. 3. 1309. -Slf. 52. 10.— St. triangular, 2—3 

 feet high. Dmbel veir large, lax, unequal, its base with 2 or 

 3 long leaves. ; Glumes brovsiiish red, with gi'een keels anH pale 

 margins. — South of England, rare. P. Till. IX, £, 



K 5 



