906 THE SEDGE FAMILY. 



f Spikelet above 6 lines long. St'gmas 2. Fruits tapering to a point. 



2. Flea C. 

 . J Spikelet above 6 lines long. Stigmas 3. Fruits obovoid, obtuse. 

 1 3. Hock C. 



I Spikelet not above 4 lines. Flowers very few. Stigmas 3. Fruit tapering. 

 L 4. Feiv-Jloivered C. 



Spikelets several, the terminal one mixed. 



r Spikelets all sessile in a simple or branched, close or interrupted spike. 



5 -{ Stigmas 2 . . G 



L Lower spikelets generally stalked. Stigmas 3 20 



fi f Terminal spikelet male at the base. Spike simple ....... 7 



I Terminal spikelet male at the top. Spike often branched or compound 13 

 r Spikelets forming a terminal spike without leafy bracts, or with only a 



*l -{ small one to the lowest spikelet 8 



L Spikelets very distant, the lower ones each in the axil of a long leafy bract 12 

 ^Spikelets ovoid, close together. Fruits tapering to a point, erect or 



8«^ scarcely spreading 9 



L Spikelets, at least the lower ones, at some distance from each other . 10 



q J" Fruits winged at the edges. Stems usually a foot high or more 5. Oval C. 



I Fruits not winged. Stems usually 8 or 9 inches high . 6. Hare's-foot C. 



( Fruits tapering to a point or beak considerably longer than the glume 11 



10 <[ Fruits erect, ovate, with a minute point. Stems a foot or more. Spike- 



L lets pale green 9. Whitish C. 



t Ripe spikelets nearly globular, with very spreading beaked fruits. Stem 



6 or 8 inches 8. Star -headed C. 



Ripe spikelets oblong, with rather spreading pointed fruits. Stem 1 to 



L 2 feet 7. Elongated C. 



r All the spikelets simple, sessile, and distant .... 10. Remote C. 

 12 < Lower spikelets branched or 2 or 3 together. Upper ones rather near 



L together 11. Axillary C. 



, o J Stems tufted, without creeping rootstocks 14 



L Rootstock long and creeping 18 



r Spike compound or branched. Stems 1 to 4 feet (usually 2 to 3 feet) 15 

 14 <! Spike simple or the lower spikelets slightly compound. Stems not a 



L foot or very slender 16 



/-Spike or panicle dark brown, rather loose. Fruits obtusely 3-angled. 

 j 12. Panicled C. 



] Spike cylindrical, often green, densely crowded. Fruits much flat- 

 L tened, with acute angles. Stem acutely triangular . . 13. Fox C. 

 r Spikelets near together, in a terminal brown spike about an inch long. 



16 <j 14. PricHg C. 



L Lower spikelets distant, all pale brown or green 17 



rFruiting spikelets globular, no male flowers at their base . 14. PricHg C. 



17 <{ Fruiting spikelets oblong, a few males at the base of some of them. 



L Fruits flattened 11. Axillary C. 



n\ 



