CATALOGUE OP CANADIAN PLANTS. 141 



House, Lake Nipigon, north of Lake Superior. {Macoun.) Swampy- 

 river flat, London, Ont. (Burgesi. Millman.) LakeMistassini, N.E.T. 

 (J. M. Macoun.) Eather common on the margins of rivers and small 

 streams, from the Kananaskis westward through the Rocky Moun- 

 tains to the Columbia Valley, at Donald, B. 0. (Macoun.) Lake 

 Winnipeg. (Hooker, Fl.) 



Var. rectorostrata, Bailey, (ined.) 



C. XJrhani, (?) Bceckeler, Engler's Bot. Jahrb. VII, 280, (1886.) 



Plant less yellow than the species. Spikes more scattered, the 

 lowest two or three inches from the next above, remote and usually 

 conspicuously stalked, beak short, straight or nearly so. (Bailey.) 

 This form seems to me to come between 0. flava, and G. (Ederi, but is 

 unlike either. The specimens referred here agree in many respects with 

 the description of C. Urhani, but as that species is based on immature 

 specimens, allowance must be made for inaccuracies. Our specimens 

 are in some cases one foot or more high, and in most cases the lower 

 spikelet is distant and compound. The plant approaches C. flava 

 in general appearance, but the spikelete and perigynia are much 

 smaller, and the latter is not reflexcd at maturity. Nanaimo, Gold- 

 stream, Shawnigan Lake, and Home Lake near Qualicum, Vancouver 

 Island. Habitat is in wet gravel along rivers or lakes. (Macoun.) 

 Spence's Bridge, along the Thompson Eiver, B.C., 1885. (Fletcher.) 



V. SpiMets unisexual, the upper male ; mostly single; the rest female 

 or sparingly androgynous. 



* Stigmas II. 



(259Y.) C. csespitosa, Linn., Fl. Suec. Ed. II., 333. 



C. concolor, R. Br. Suppl. App. Parry's Voy., 218, (1823.) 



a Pacifica, Drejer., Fl. Ex. Hafn., 292. 



C. Brejeri, Lang. Fl. Ratisb., 548. 

 Said by Bceeckler to occur in British America. (Bailey.) New- 

 foundland. (Reeks.) Between Eepulge Bay and Cape Lady Belly, 

 Hudson Bay. (Dr. Bae.) "Wet meadow, JSTachacco Eiver, British 

 Columbia. The specimens referred here are young, but they resemble 

 very closely 0. ccespitosa of Europe. (Macoun.) 



Var. fllifolia, Boott. 111. 182. 



C. aperta, var. angustifolia, Boott, Hook., Fl. II., 218, (1840.) 



Fort Good Hope, Mackenzie River, lat. 67°. (Br. Richardson.) 

 Cascade Mountains, lat. about 49°. {Br. Lyall.) A stouter form. 

 (Bailey.) 



