CATALOGUE OF CANADIAN PLANTS. 459 



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



(2060.) C. Con radii, Torrey. 



On rocks, Newfoundland. (Gray.) Near 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.) 



C. CEKATOPHYLLE^E. HORN-WORT FAMILY. 



561. 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. CONIFEE^}. PINE FAMILY. 



562. THUYA, Linn. (ARBOR-VITXE.) 



(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. Very rare in Nova 

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

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

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

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



