174 THE FLORA OF THE ALPS 



circular, furrowed, spikelets brown ; very high, moist ; 

 Switzerland, Styria. 



10. KOBRESIA, Willd. 



Flowers unisexual; spikelets few-flowered, in a ter- 

 minal compressed ovoid spike. 



K. caricina, Willd. ; stem 4-8 in., lower spikelets of 

 one female, upper usually of 2 male flowers ; very high ; 

 Switzerland, Tirol, Mont Cenis, Styria, Pyrenees, rare. 



ii. CAREX, L. 



Flowers unisexual, usually monoecious; male flowers 

 without perianth-bristles ; stamens 2-3 ; female flowers 

 enclosed in a bidentate sac or utricle ; stigmas 2-3 ; seed- 

 vessel enclosed in the enlarged sac or perigyne. 



The following enumeration of the alpine species of the 

 very difficult genus of Sedges is founded on Dalla-Torre's 

 classification. 



A. Spikelet solitary, terminal, without bracts at the 

 base ; stem nearly leafless : C. dioica, L. ; spikelet 

 dioecious, stigmas 2, stem terete, 3-8 in.; moist. C. 

 Davalliana, Sm. ; dioecious, stigmas 2, stem triangular, 

 up to I ft. ; moist. C. rupestris, All. ; lower flowers of 

 spikelet female, upper male, fruit erect; pastures. C. 

 pauciflora, Lightf. ; spikelet similar, 4-6-flowered, fruit 

 bent downwards ; moist. C. microglochin, Whlb. ; spike- 

 let similar, 10-12 -flowered, fruit bent downwards, with a 

 long green bristle at the base ; Valais. 



B. Spikelets united into a head, with 2-3 green in- 

 volucral leaves at its base : C. baldensis, L. ; rare ; 

 Southern Tirol, Salzburg, Upper Bavaria. 



