THE SEDGE TRIBE 311 



9. Kobresia {Kobresia) 



1. K. caricina (Sedge-like Kobresia). A small tufted plant, 

 closely resembling a Sedge ; stems seldom above 6 inches high ; 

 leaves spreading from the base, shorter than the stems ; s pikelets 

 4 or 5, brown, sessile, in a short, terminal spike. Wet moors in 

 the north ; rare. Fl. July. Perennial. 



10. Carex {Sedge) 



1. Spikelel solitary, terminal, unbranched 



* Style 2-branched 



1. C. dioica (Dioecious Sedge). Roolstock usually creeping ; 

 stems slender, usually not more than 6 or 8 inches high ; leaves 

 narrow, often shorter than the stems ; spikelets brown, about 

 | inch long, male and female on distinct plants (dioecious). Bogs ; 

 common. Fl. May, June. Perennial. 



2. C. Davalliana (Davall's Sedge). Like the preceding, but 

 differs in having the fruits deflexed instead of ascending. It is 

 now extinct in Britain ; it used to grow on Lansdown, near Bath. 



3. C. pulicaris (Flea-Sedge). Stems tufted, 3-6 inches high ; 

 leaves very slender, shorter than the stems ; spikelets about inch 

 long, male in the upper half, female in the lower ; fruits spreading. 

 Bogs ; frequent. Fl. May, June. Perennial. 



** Style ybranched 



4. C. rupestris (Rock-Sedge). Roolstock creeping ; leaves 

 broader and flatter than in C. pulicaris; spikclct similar; fruit 

 shorter, not pointed and not so spreading. Wet rocks on the 

 higher Scottish mountains ; rare. Fl. July to September. Peren- 

 nial. 



5. C. pauciflora (Few-flowered Sedge). A slender plant with 

 long, creeping runners ; stem branched, often about 6 inches high 

 or less ; leaves very narrow, the upper often nearly as long as the 

 stem ; spikelet very short, few-flowered, male at the top ; fruit 

 long, narrow, spreading or reflexed. Bogs ; frequent in the north. 

 Fl. June, July. Perennial. 



2. Spikelets several in a compound spike or panicle, each spikelei 

 containing both male and female flowers, or sometimes nearly 

 unisexual ; style 2-branched 



* Spikelets nearly entirely either male or female 



6. C. arenaria (Sand-Sedge). Roolstock creeping, often several 

 feet long ; stems a few inches to i feet high, leafy at the base ; 



