CATALOGUE OF CANADIAN PLANTS. 283 



Maiden, Ont. (Maclagan.) Shores of Lake Huron along the Bruce 

 Peninsula, north shore of Lake Superior and westward on damp prairie 

 and in thickets to Edmonton on the Saskatchewan. (Macoun.) Turtle 

 Mountain, 49th parallel. (Dawson.} 



(1320.) P. alata, Gray. 



Nabalus alatus, Hook. Fl. I., 294. 



N. Boottii, DC. Var. Dawson's Boundary Commission Report, p. 365. 



Observatory Inlet and northwest coast. (Scouler.*) Queen Char- 

 lotte Islands. (Dawson.) Ounalashka and 

 FortWrangel, and Sitka. (Meehan.) 



Var. sagittata, Gray. 



South Fork of Belly River, growing in thick 

 tanie Pass, 49th parallel. (Dawson.~) 



339. SONCHUS, Linn. (SOW-THISTLE.) 



(1321.) S. oleraceus, Linn. Common Sow-thistle. 

 S. titiatus, Lam. DC. Prodr. VIL, 185. 



Waste places around dwellings and in gardens. Naturalized from 

 Newfoundland to Manitoba and British Columbia. Departure Bay, 

 Vancouver Island. (Meehan.') 



(1322.) S. asper, Vill. Spiny Sow-thistle. 

 8. fallax, Wallroth. DC. Prodr. VIL, 185. 



Commoner than the last arid found in company with it, but more 

 frequently in cultivated fields. 



(1323.) S. arvensis, Linn. 



Abundant along roadsides and in fields from Newfoundland through- 

 out the Maritime provinces and Quebec. Parliament Hill and other 

 places around Ottawa. (Fletcher Fl, Ott.) Grounds of the Insane 

 Asylum, London, Ont. (Burgess.) Vicinity of Hamilton, Ont. (Buchan.) 



34O. LYCODESMIA, Don. 



(1324.) L. juncea, Don. Hook. Fl. I., 295. 



Prenanthes juncea, Pursh. Fl. II., 498. 

 Dry plains of the Saskatchewan. (Drummond.) Dry, sandy or 



