176 THE FLORA OF THE ALPS 



E. Inflorescence similar ; stigmas 3. 



(«.) Terminal spikelet male in the lower, female in the 

 upper half; leaves flat, linear: — C. fuliginosa, Schk. ; 

 fruit lanceolate, beaked (elliptic, not beaked, in the 

 remainder) ; dry. C. alpina, L. ( Vahlii, Schk. ; spikelets 

 short, crowded, fruit green ; dry, local. C. nigra, All. ; 

 spikelets short, crowded, fruit black; dry, local. C. 

 atrata, L.; spikelets 3-5, distant, very dark, stem 8-15 in., 

 leafy ; pastures. C. aterrima, Hoppe ; spikelets 3-5, nearly 

 black, crowded, stem rough; rare. C. distachya, Willd.; 

 spikelets 2-3, brown, stem slender, leafless; Salzburg, 

 very rare. C. castanea, Miel. ; spikelets stalked, chestnut- 

 coloured, stem thick, flat, leafless ; Salzburg, very rare. 



{b^ Upper spikelets male; fruit not beaked or beak 

 very short : — C. ericetorum, Poll, (membranacea, Hoppe) ; 

 male spikelet i, fruit finely hairy, leaves rather broad; 

 rare. C. brevifolia, Host. ; fruit ciliate (glabrous in the 

 remainder), male spikelets 2, distant, stalked; moist; 

 Tirol. C. spadicea, Host. ; spikelets elongated, on long 

 stalks, fruit elliptic, leaves channelled; Tirol (Monte 

 Baldo). C. irrigua, Sm. ; spikelets elliptic, on long 

 stalks, fruit trigonous ; moist ; Tirol, Carniola. C. pal- 

 lescens, L. ; spikelets elliptic, on short stalks ; bushy, 

 frequent. C. omithopodioides, Hausm. ; spikelets small, 

 capitate,, involucral leaves composed only of a mem- 

 branous sheath ; Tirol, rare. C. clavceforme, Hoppe ; 

 involucral leaves with amplexicaul sheaths ; Styria, Car- 

 niola, rare. C. sparsiflora, Steud. {vaginaia, Tausch.); 

 sheath of involucral leaves 1-2 in. long ; rare. C. ustulata, 

 Whlb. ; sheath of involucral leaves not more than \ in. 

 long; local. 



(t.) Upper spikelets male ; fruit with a long beak -.—C. 



