SYNOPSIS OF THE GENERA. 



7. SCHJE'NOS, [Page 46.] Spikchts one to three-flowered. Glum 



two, ranked, the outer ones smaller, barren. Bristles ve 

 small, or none. Style jointed, or deciduous. 



8. RHYNCHOS'PORA, [Page 46.] Spikelets few-flowered. Glumes 



one valve, imbricated on all sides, the outer ones small< 

 barren. Bristles various in number, spiny, and short 

 than the glumes. Style bifid, dilated at the base, more 

 less articulated, persistent, and crowning the fruit. 



9. SCIR'PUS, [Page 48.] Glumes of one valve, imbricated on < 



sides, the outer ones sometimes barren. Bristles som 

 times wanting. Style simple, deciduous. Fruit tenr 

 nating in a point. 



10. ELEO'CHARIS, [Page 52.] Spike terminal, solitary. Glufn 



of one valve, imbricated on all sides, mostly all fertil 

 Bristles four to twelve, finely toothed, rarely absent. Sty 

 dilated at the base, and jointed upon the germen. Stiyni 

 two or three. Fruit lenticular or triangular, crowned 1 

 the indurated base of the style. Stem erect, simp] 

 sheathed at the base. 



11. ELIO'GETON, [Page 54.] 'Spike terminal. Glumes near 



equal, of one valve, imbricated on all sides, all fertil 

 Bristles absent. Style deciduous. Fruit tipped with 

 short point. 



12. BLYS'MUS, [Page 55.] Spike terminal, compressed. Spikeh 



bracteated, arranged in a distichous manner on a slight! 

 zig-zag rachis. Glumes of one valve, imbricated on t 

 sides, outer ones the largest, barren. Bristles often abser 

 Fruit compressed, terminated by the tapering persistej 

 style. 



13. ERIOPHO'RUM, [Page 56.] Spikes terminal, solitary or m 



inerous. Glumes of one valve, imbricated on all side 

 nearly equal. Style deciduous. Stigmas three. Frit 

 with very long silky hairs springing from the base. 



14. NAR'DUS, [Page 61.] Glumes wanting. Glumelles two ur 



equal lanceolate valves, the outer one the largest. 



ORDER II. BIGYNIA. 2 Pistils. 

 * Flowers panicled ; (compact, appearing like a spike, or spreading 



f- Spikelets single-flowered. 

 15. ALOPECU'RUS, [Page 74.] Panicle spiked. Glumes of tv* 



