CATALOGUE OF CANADIAN PLANTS. 93 



Var. castaneus, Torrey, Cyp. 251. 



C. flavescens, var. (3. castaneus, Pursh, Fl. I., 52. 



Abundant in marshes at Belleville, and at the head of the Bay of 

 Quinte, near the Murray Canal, Ont. (Macoun.) Niagara Falls. 

 (W. F. McCrea.) 



(2458.) C. flavescens, Linn.; Gray, Man. Ed. V., 552. 



Credited to Canada by Prof. L. N. Britton, in his Eevision of this 

 genus. We have never seen a Canadian specimen. It should be 

 looked for along the New Brunswick coast. 



(2459.) C. aristatus, Eottb. ; Britton. Bull. Torr. Bot. XIII., 207. 



C. inftexus, Muhl. ; Hook., Fl. II., 232 ; Macoun, Cat. No. 1909. 



C. uncinqtus, Pursh, Fl. L, 50. 



Gravel in the beds of rivers, apparently very local. Vicinity of Ottawa. 

 (Fletcher, Fl. Ott.) "West Eideau Lake, Ont. (Porter.} Gravelly bed 

 of the river Moira, at Belleville, Hastings Co ; also in the bed of the 

 Eivor Trent, at Trenton, Myersburg, and Heely Falls, Northumber- 

 land Co., Ont. ; rather uncommon at Somas Falls, four miles from 

 Alberni, west coast of Vancouver Island. (Macoun.) Saskatchewan 

 and Lake Winnipeg. (Hooker, FL) 



(2460.) C. Schweinitzii, Torr. Cyp., 276. 



Sandy shores of lakes and rivers, and on sand hills on the prairies. 

 On sand on the beach along the lake shore at Hamilton, Ont. (Burgess. 

 Millman.) Point Pele*e, Lake Erie. (Burgess.) Port Colborne, Lake 

 Erie, and Point Edward, Lake Huron, Ont.; Hungry Hall, Eainy 

 Eiver, and on sand banks where that river enters the Lake of the 

 Woods; on sand hills near the source of the Qu'Appelle, and at Old 

 Wives Lakes, Assiniboia. (Macoun.) 



(2461.) C. esculentus, Linn. , Britton, Bull. Torr. Bot. XIIL, 210. 



C. phymatodes, Muhl. ; Gray, Man. Ed. V., 554. 



C. repens, Ell. ; Hook., Fl. II., 232. 



C. tuberosus, Vahl. ; Pursh, Fl. L, 52. 



On the banks of rivers, chiefly in wet sand. Sandy bank^of Kenne- 

 beccasis ; Norton, and Fredericton, N.B. (Fowler, Cat.) Gatineau Point, 

 on the Ottawa, Q.; in wet sand at Niagara Town, and near * Queenston 

 Heights, along the railway. (Macoun.) In great abundance below 

 Parliament Hill, Ottawa. (Fletcher, Fl. Ott.) Low grounds, London, 

 Ont. (Burgess. Millman.) Point Pele'e and Point Aux Pins, LakeErie, 

 Ont. (Burgess.) Upper Canada. (Goldie.) 



