42 S2. Carex. 9. CYPERACEtE. Fiend. ph. 



Style not jointed, deciduous; 

 glumeLles setaceous, shorter than the glume, 



Chjetospora. 38. 

 Style jointed, persisting, dilated at bottom ; 

 glumelle setaceous, shorter than the glume. 



Rhyncospoea. 39. 



3. Glumes imbricate all round ; flowers hermaphrodite ; 

 glumelles none, or Iristlelike. Scirpidecs. c. 



Style jointed, persisting, dilated at bottom ; 

 spathellules 4, setaceous, shorter than the glume 



Eleocharis. 40. 



Style not jointed, deciduous ; 

 glumelle none Isolepis. il. 



Style not jointed, deciduous ; 

 spathellules 4" or 6, setaceous, shorter than the 

 glume SciRPUs. 42. 



Style not jointed, deciduous ; 

 spathellules 6, setaceous, denticulate, longer than 

 the glume Trichophorum. 43, 



Style not jointed, deciduous ; 

 spathellules many, setaceous, woolly, longer than 

 the glume Eriophorum. 44. 



A. Cariceje. Spathelles imbricate all round the spike ; 

 flowers unisexual ; akenium inclosed in the hardened glu- 

 melle. 



Roots generally diaphoretic, demulcent> and resolvent, 

 and may be substituted for sarsaparilla. 



I. 32. CAREX. Carex. 



Flowers raonoicous or dioicous, spiked ; spikelets andro- 

 gynous or unisexual ; spathelles imbricate all round ; spa- 

 thellules two, joined by the edges, perforated at top, per- 

 sisting, cartilaginous ; stamens 3 ; style 1 ; stigmata 2 ; 

 akenium 1, inclosed in the persistent spathellules. — Roof 

 perennial, fibrous, or creeping; culm 3-sided; leaves sheath- 

 ing, rou^h on the edges; sheath whole; hractecs mostly 

 embracing the stem, not sheathing ; spikes simple or com- 

 pound, mostly androgynous. 



