70 GEOLOGICAL SURVEY OF CANADA. 



ponds and lakes. Newfoundland. (Reeks.) Halifax, Pictou, and 

 Oyster Ponds, Guysboro Co., N.S. (Sommers, Cat.) Kentville, and 

 Cape Blomidon, N.S. (Macoun.) Pictou Co., N.S. (McKay.) Com- 

 mon at St. Louis Dam and other places near Ottawa. (Fletcher, 

 Fl. Ott.) Abundant in marshes near Prescott Junction, Ont. (Billings.) 

 Common in the Bay of Quinte and in the still waters of the Trent 

 River, Northumberland Co., Ont. (Macoun.) Marshes, Burlington 

 Bay, Hamilton, Ont. (Logie.) London, Ont., and in the Lake of the 

 Woods.. (Burgess.) Kemptville, Ont. (Porter.) Missinaibi Eiver, 

 Ont. (R. Sell.) In water at London, andNewboro, Ont. (Miltman.) 

 Ponds, Cypress Hills, Alberta. (Macoun.) 



(2400.) S. androcladum, Morong. (MS.) 



S. ramosum, Smith, ; Pursh, FL II., 33 ; Hook., Fl. II., 169, in part 

 S. simplex, var. androcladum, Engelm. Gray, Man. Ed. V.,481 ; Macoun 

 Cat. No. 1722, var. androcladum. 



."References made to S. eurycarpum, no doubt, in some cases belong 

 here, but except as regards our own specimens we have no means 

 of determining. Indian Cove, Pictou Co., N.S. (McKay.) Norton, 

 N.B. (Fowler, Cat.) Lachine Wood, near Montreal, 1821. (Dr. Holmes.) 

 Common in the Nation Eiver at Casselrnan, near Ottawa; in the Bay 

 of Quinte, and not infrequent on the margins of ponds and lakelets in 

 central Ontario. (Macoun.) At London, Ont. ; and in Lake Joseph, 

 Muskoka, Ont. (Burgess.) Not uncommon in marshes near Cedar 

 Hill, and at Nanaimo, Vancouver Island. (Macoun.) Cumberland 

 House, on the Saskatchewan. (Hooker, Fl.) 



Yar. fluctuans, Morong. (MS.) 



S. simplex, var. fluitans, Engelm. ; Gray, Man. Ed. V., 481 



The branched infloresence includes this form with S. androcladum. 

 Marshes, Campbellton, N.B. (Chalmers.) Severn Kiver, Keewatin. 

 (J! M. Macoun.) 



(2401.) S. Simplex, Huds. ; Pursh, PL I., 34; Hook., PL II., 169. 



S. simplex, Huds., var. Nuttallii, Engelm. ; Gray, Man. Ed. V., 481. 

 Under one form or another this species extends from the Atlantic to 

 the Pacific. Newfoundland. (Miss Brenton.) Labrador. (Butler.) 

 Windsor, N.S. (Sommers, Cat.) Pictou Co., and Magdalen Islands, 

 N.S. (McKay.) Smith's Mills, near Truro, N.S. (Campbell.) Marshy 

 brook at Windsor, N.S, ; Black Creek, near Louisburg, Cape Breton. 

 (Macoun.) Caledonia, Guysboro Co., N.S. (Faribault.) Salt Lake, Anti- 

 costi, and in Fox Eiver, Gaspe", Q. (Macoun.) Ouatchechow, Q. (St. Cyr.) 

 In wet places and borders of lakes, Bass Eiver, and Welsford ; St. 



