376 GEOLOaiCAL SURVEY 0¥ CANADA. 



(3193.) C. Eleocharis, Bailey, Mem. Torr. Bot. Club, I., 6. 



" One of the Vignece, perhaps allied to G. tenella, iSchk. ; verj' slender 

 but stiff, half a foot high, both leaves and culm filiform and smooth ; 

 spikes two or three, each bearing from one to three flowers, closely 

 aggregated into a very small and apparently monostachyous head, 

 evidently staminate above ; perigynium short-ovate, turgid, flat on the 

 inner face, marginless and nerveless, dull brown, beak entire or nearly 

 so, as long as or longer than the thin hyaline scale.'' Collected on the 

 Saskatchewan Plains, near Fort Carleton, in August, 1812. Col. Olney 

 named it C. glareosa, and under this name it was distributed. It has 

 never been seen since, but often looked for. {Macoun.) 



(2557.) C. canescens, Linn., var. polystachya, Boott; Eich. 

 Jour., II., 344. 



C. arcta, Boott; Maooun, Cat. IV., 124, in part. 



Erfect and mostly strict, not glaucous, 1 J to 2| feet high ; leaves very 

 lax and usually exceeding the culm ; spikes oblong, green, more or less 

 aggregated into a loose head, the lowest one or two subtended by a 

 short and hyaline broad- based and pointed or caudate bract ; perigynium 

 more spreading than in the species. 



All eastern references to C. arcta, in Part IV., belong here. The 

 western to the next variety. 



Var. Oregana, Bailey, Mem. Torr. Bot. Club, I., 15. 



C. arcta, Boott ; Macoun, Part IV., 125, in part. 



" Head larger and more dense than in the var. polystachya, becoming 

 brown ; spikes loosely flowered, the perigynia sometimes spreading in 

 a stellate manner ; perigynium narrow, often almost lineai--lanceolate, 

 brown-nerved, sharp edged and rough above." Very abundant in 

 ditches at Hastings, B.C. ; and Victoria and Kanaimo, Vancouver 

 Island. {Macoun.) Cedar Hill, near Victoria, V. I. {Fletcher.) 

 Vancouver City, Burrard Inlet, B.C. {Prof. Fowler.) 



Var. robustina, 



A very tall form growing in clumps in boggy places. Spikes 6 to 8, 

 generally Y, often half an inch long, tapering at the base, lower spikes 

 distant and peduncled, the latter four forming an oval head, lower with 

 a short setaceous bract, whole head with a light silvery hue. In damp 

 woods at Port Haney, B.C., May Ist, 1889. {Macoun.) Burnaby Lake, 

 near Hastings, B.C., April, 1889. {J. M. Macoun.) 



