172 GEOLOGICAL SURVEY OF CANADA. 



{2682.) C. Tuckermani, Boott, Hook., Journ. Bot. V., 73, (1846.) 



C. bullata,Dew. Sill. Journ. IX., 71, (1825); Hook., Fl. IL, 221. 



C. Tuckermani, var. cylindrica, Dew. Sill. Journ. XLIV., 48, (1845.) 



C. cylindrica, Carey, Gray, Man. 566, (1848.) 



Bather common in some localities growing in large clumps, mostly 

 in water. Newfoundland. (Reeks.} Wet bank of Bass Biver, Kent 

 Co., KB. (Fowler, Cat.} Nun's Island, Montreal. (C. F. McCrea.) 

 Nation Biver, and plentiful in all low grounds near Ottawa. (Fletcher, 

 Fl.Ott.) Wet ground, Prescott, Ont, (Billings.} -Abundant in wet 

 spots around Belleville, and westward in central Ontario ; Port Dover 

 Junction, and near St. Thomas, Elgin Co., Ont. (Macoun.) Swamps 

 near London, Ont. (Burgess. Millman.) Vicinity of Hamilton, Ont. 

 (Logie.) Port Colborne, Lake Erie. (Me Gill Coll. Herb.) Canada to 

 Norway House. (Hooker, Fl.) 



{2683.) C. retrorsa, Schweinitz, An. Tab. (1823.) 



C. reversa, Sprengl. Syst. Veg. III., 827. 



Marshy places and b} r ditches ; rather common. Marshes at Truro, 

 .and Annapolis, N.S. (Macoun.) Common in wet places at Bass Biver. 

 Kent Co., N.B. (Fowler, Cat.} Campbellton, N.B. (Chalmers.) Riviere 

 du Loup, Q. (Pickering.) Becollet Swamp, near Montreal. (C. F. 

 McCrea.) Sugar Bush, and Bevin's lakes, Montcalm Co., Q. (!>' Urban.) 

 Yicinity of Ottawa. (Fletcher, Fl. Ott.) Very common at Prescott, 

 Ont. (killings.) Very abundant throughout central Ontario, and 

 westward to Owen Sound, and north-westerly to Lake Nipigon and 

 south to Port Arthur and Fort William, Lake Superior. (Macoun.) 

 Vicinity of Hamilton, Ont. (Logie.) Swampy flat, London, Ont. 

 (Burgess. Millman.) Oba Lake, Ont, (E. Bdl.} Apparently quite 

 rare in the Rocky Mountains, only noticed at Donald, Columbia Valley. 

 (Macoun.) Saskatchewan. (Bourgeau.) Cumberland House to the Rocky 

 Mountains. (Hooker, Fl.) Lake of the Woods, and Winnipeg River. 

 (Richardson.) 



Var. Hartii, Gray, Man. Ed. V., 600, (1868.) 



C. Hartii, and var. Bradleyii, Dew. Sill. Journ. 2d. Ser. XLL, 226, (1886) 

 C. Macounii, Dew. Sill. Journ. XLL, 2d. Ser. 228, (1866.) 

 Abundant in ponds at Stirling, Hastings Co.; and in Tudor, and 

 Marmora, North Hastings ; also on F. Macoun's farm, Seymour, Nor- 

 thumberland Co., Ont., 1864. I agree with Prof. Bailey in placing 

 this under var. Hartii, Gray, where I believe it properly belongs. 

 Prof. Dewey thought it might be new, but suggested C. Hartii as its 

 next of kin. 



