ANALYSIS OF THE GENERA. 
farinaceous. Embryo small, lenticular, undivided at the base of the 
albumen.—Perennial herbs resembling grasses. Root fibrous. Stems 
three angled, or taper, mostly without joints. Leaves with entire 
sheaths. 
TRIBES. 
Flowers perfect. 
Glumes two ranked .....es000+0++ sseereeee L. CYPERER. 
Glumes imbricated on all sides ......... 2. ScrRPER. 
Flowers moneecious. 
Fruit completely inclosed in an urceo- 
PRES POOIATIUD nos an cides coclas cn salessiescuss 3. CARICER. 
Fruit inclosed in a membranous pouch. 4. ELYNEA. 
TRIBE 1. CYPERER. 
Spikelets many flowered .......ccssesee seoeee CYPERDS, V. 1. p. 44. 
Spikelets two to four flowered..........0000 Scuanvs, v. 1. p. 46. 
TRIBE 2. ScIRPE. 
Hypogynous setz, various in number. 
Sete short. 
Spikelets several, forming a terminal 
SPike...sresecersescessevescoeee MHYNCHOSPORA, V. 1. p. 46. 
Spikelets solitary, terminal ............ HLEocHARIS, v. 1. p. 52. 
Setze long, silky......sssssessessessesceceesee HRIOPHORON, V. 1. p. 56. 
Hypogynous sete, mostly present, some- 
times wanting. 
Spikelets arranged alternately in a 
distichous spike.........sesee.... BLYSMUS, V. 1. p. 55. 
Spikelets not in a distichous spike, 
mostly paniculated...........6. .. Scrrpvs, v. 1. p. 48. 
Hypogynous setz wanting. 
STAMENS CWO ....cesceccoerecsessescccsecee CLADIUM, V. 1. p. 32. 
Stamens three .rescccccssesseeesseseeees HLIOGETON, V. 1. p. 54. 
TriBe 3. ELyNEz. 
Spikes aggregate .....sssssesccessessesseseeeee KOBRESIA, V. 3. p. 1189. 
Tripe 4. CaricEz. 
Flowers in imbricated spikes ............... CAREX, V. 3. p. 1151. 
