374 GEOLOGICAL SURVEY OF CANADA. 



Var. oocidentalis, Bailey, MS. N. Var. 



Head lighter coloured than in the species; spikes more pointed; 

 scales thin, whitish, very sharp and as long as, or longer than the peri- 

 gynium. Guichon Creek, Nicola Valley, B.C. 1888. (Dawson.) 

 Borders of saline marshes around Karaloops, B.C. 1889. (Macoun.) 



(2529.) C. Douglasii, Boott; Macoun, Cat. IV., 115. 



Abundant and in fine fruit on the dry arid plain between the 

 Ferry and the North Thompson, opposite Kamloops, B.C., -Juno, 1889. 

 (Macoun.) 



(2530.) C. marcida, Boott; Macoun, Cat. IV., 115. 



Quite common on the dry flats by the Thompson Eiver at Spence's 

 Bridge and Kamloops, B.C. 1 889. (Macoun,) 



Var. alterna, Bailey, MS. N. Var. 



" Tall and very slender, the culm even fiexuose ; spikes small and 

 scattered, the lower ones a half inch or more separated and. the head 

 often 2 inches long ; perigynium lance-ovate, longer than in the species 

 and more strongly nerved, especially on the outer side, and strongly 

 stipitate." In dry gravelly soil along Shuswap Lake near Scotch 

 Creek, B.C., June 18th, 1889. (Macoun.) 



(2533.) C. teretiuscula, Good., var. ampla, Bailey, Mem. Torr. 

 Bot. Club, I., 53. 



" Very large and stout, growing three feet or more high in deii.se tul'ts ; 

 heads huge (2 to 3 in. long), much branched, chaffy ; perigynium twice 

 larger than in the species, nerved on the back, shining at maturity, 

 produced into a long beak." Quaking bog, on the border of Burnaby 

 Lake, near Vancouver City, B.C., April 19th, 1880. (J. M. Macoun.) 



(2543.) C. Hookeriana, Dewey; Bailey, Mem. Torr. Bot. Club, 

 I, 14. 



C. muricata, var. gracilis, Boott; Macoun, Cat. IV., 118. 



ki Very slender; head interrupted, castaneous, small, the spikes sonic- 

 times alternately arranged ; bracts of the two or three lower spike* 

 produced into long awns, which surpass the spikes; porigymum small, 

 green, usually lightly nerved, gradually produced into a beak which is 

 cut into sharp awl-like teeth," Sec Part IV. for distribution, 



