CATALOGUE OP CANADIAN PLANTS. 271 



(1261.) C. folioSUS, Grtiy. 



Carduusfoliosus, Hook. Fl. I., 303. 



Cirsium foliosurn, DC. Torn & Gray Fl. II., 461. Macoun's Cat., No. 

 1063. 



Prairies of the Eocky Mountains. (Drunmiond.) South Kootanie 

 Pass, 49th parallel ; also, North Fork of Old Man Eiver, Eocky 

 Mountains. (Dawson.) 



(1262.) C. arvensis, Pnrsh. Canada Thistle. 



Carduvs arvensis, Smith. Hook. Fl. I., 302. 



Cirsium arvense, Scop. Gray, jNIanual, i^age 274. Macouii's Cat., No. 

 1062. 



IS'aturalized throughout the country and become a pestilent weed on 

 all badly cultivated farms. Many country roads in Ontario are almost 

 impassable in summer owing to the prevalence of this pest. 



(1263.) C. HookerianuSy Gray. 



Carduus discolor, var. fl. albis, Hook. Fl. I., 302. 

 Upper wooded and snb-alpine region of the Eocky Mountains, north 

 of Lat. 49^. (Bouglcui & Bourgeau.) At the base of the high lime- 

 stone cliffs at the entrance to Bow Eiver Pass. (Macoun.) 



(1264.) C. edulis, Gray. 



"Wet or shady places, along the southern boundary of British 

 Columbia. (Gray.) 



(1265.) C. Kamtschaticus, Maxim. 



Cirsium Kamtschaticum, Ledeb. DC. Prodr. VI., 644. 

 Atkha, one of the Aleutian Islands. (Gray.) 



324. ONOPORDON, Vaill. (SCOTCH THISTLE.) 



(1266.) O. acanthium, Linn. 



Waste grounds generally escaped from gardens. Pictou, N. S. 

 (McKa>j.) Buctouche and Bass Eiver, N.B. Eare. (Fowler's Cat.) 

 Vicinity of London, Ont. (Burgess.) Vicinity of St. Thomas, Out. 

 (McGill Coll. Herb.) 



325. SAUSSUREA, DC. 



(1267.) S. alpina, DC. Hook. Fl. I., 30.3, in part. 

 S. monticola, Richards. Hook. Fl. I., 303. 

 Elevated parts of the Eocky Mountains. (Drummond.) Eastern 



