CATALOGUE OF CANADIAN PLANTS. 459 



560. COREMA, Don. (BROWN CROW-BERRY.) 



(2060.) C. Conradii, Torrey. 



On rocks, Newfoundland. {Gray.) ISTeai- Bedford, and North-west 

 Arm, Halifax, N. S. {Lindsay & Sommers.) Wilmot, Annapolis, N.S. 

 {How.) Common on rocky ledges, North-west Arm, Halifax, and 

 very abundant on sand at Kingston on the Windsor and Annapolis 

 railway. {Burgess & Macoun.) 



G. CBEATOPHYLLB^. Horn-wort Family. 



56r. CERATOPHYLLUM, Linn. (HORNWORT.) 



(2061.) C. demersum, Linn, 



Not rare, but seldom collected. Ponds and slow streams at Ottawa. 

 {Fletcher Fl. Ott.) Vicinity of Montreal, and at Maiden, Ont. {Mac- 

 lagan.) Common in the St. Lawrence at Prescott. {Billings.) Gren- 

 adier Pond, near Toronto. (A. Fowler.) Abundant in the Bay of 

 Quinte and in still water in all the rivers of Ontario and lake expan- 

 sions on them ; head of the canal at the Sault Ste. Marie, and west- 

 ward to the head of Lake Winnipegoosis near Point Wilkins. {Macoun.) 



CI. CONIPEE^. Pine Family. 



562. THUYA, Linn. (ARBOR-VIT/E.) 



(2062.) T. OCCidentalis, Linn. White Cedar. 



Widely distributed in Quebec and Ontario, where it forms extensive 

 " swamps " in hollows where springs abound. Another favorite haunt 

 is river banks, where its roots can enter the crevices and obtain mois- 

 ture, although no earth may cover the bare rock. Yery rare in Nova 

 Scotia. In a swamp within three miles of Annapolis, but said to grow 

 on the Bay of Pundy side of North Mountain, near that place. 

 {Macoun.) Common throughout New Brunswick. {Fowler's Cat.) 

 On the route from Lake St. John to Lake Mistassini it reaches, as a 

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