374 GEOLOGICAL STIKVEY 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 jjeri- 

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

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



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



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

 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. 1889. • (Macoun,) 



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



" Tall and very slender, the culm even floxuosc ; 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 moi'e sti'ongly nerved, especially on the outer side, and stjongiy 

 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 dense tufts ; 

 heads laige (2 to 3 in. long), much branched, chafty ; 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. (.7. M. Macoun.) 



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

 L, 14. 



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



" Very slender ; head interrupted, castaneous, small, the spikes some- 

 times alternately arranged ; bracts of the two or three lower spikes 

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

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

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



