CATALOGUE OP CANADIAN PLANTS. 125 



the Eestigouche, N.B. (Fowler's Cat.) Eestigoiiche Eiver, N.B., Isle 

 of Orleans, and Lake Mistassini, Q. (Brunei.) Eiver St. Lawrence at 

 Montreal. (Holmes.) Beaches, Gasp^ coast, and westward along the 

 St. Lawrence and Great Lakes and on the prairies to about the lOGth 

 meridian. 



(5*71.) P. Pennsylvanica, Linn. Bird Cherry. 



F. borealis, Poir. Pursli, 538. 



Cerams borealis, Michx. Fl. I., 286. 



C Pemisiilvanica, Seringe. Hook. Fl. I., 168. 



From Newfoundland, Nova Scotia, New Brunswick, and westward to 

 the Eocky Mountains, where it is a small bush. Hence through northern 

 British Columbia to the Coast Eange. 



(572.) P. emarginata, Walp. 



Cerasus emarginata, Dougl. Hook. Fl. I., 169. 



Southern British Columbia near the coast, also on Vancouver Island 

 in the vicinity of Victoria. 



Var. mollis, Brewer. Bot. Cal. I., 16*7. 



Cerasus mollis, Dougl. Hook. Fl. I.. 169. 

 Prunus mollis, Walp. Macoun's Cat., No. 501. 



On subalpinc hills, near the source of the Columbia. (Douglas.) 

 Victoria, Vancouver Island, and at Yale, B.C. (Alacoun.) 



(573.) P. Virginiana, Linn. Choke Cherry. 



P. serotina, Poir. Pursh; 330. 



Cerasus Virginiana, Loisel. PI. Bourgeau, 256. 



Cerasus serotina. Hook. Fl. I., 169. 



Very abundant in thickets, extending from Newfoundland, Nova 

 Scotia and New Brunswick across the entire continent. On the Pacific 

 coast, it seems to merge into the next species, which at any rate takes 

 its place on the coast. It is found as far north as Lat. 62° on the Mac- 

 kenzie. On the southern prairie amongst sand and along river banks, 

 it produces fruit which vies in sweetness with the far-famed " Sas- 

 kutoom " berries of the Plain Indians. The prairie form should be 

 carefully com2:)ared with the eastern one. 



(574.) P. demlssa, Walp. 



Cerasus serotina. Hook. Fl. I., 169, in part. 

 Cerasus demissa, Nutt. Torr. & Gray, Fl. I., 411. 



Along the coast of British Columbia, and in the interior as far as 

 Cache Creek. 



