CATALOGUE OF CANADIAN PLANTS. 275 



332. HIERACIUM, Linn. (HAWKWEED.) 



(1284.) H. Pilosella, Linn. Mouse Ear Hawkweed. 



Dry sandy soil. Introduced into meadows near London, Ont. 

 (Burgess.) 



(1285.) H. murorum, Linn. 



Apparently introduced in the Province of Quebec. (Gray.) Within 

 the limits of the city of Quebec. (Fletcher.) 



(1286.) H. vulgatum, Fries. 



H. molle, Pursh. Fl. II., 503, not Jacq. 



H. sylvaticum, Schlecht. Hook. Fl. I., 299. 



Labrador. (Kolmeister.) Frequent along river margins on Anti- 

 costi, and along the Gasp coast from Cape Rosier to Matane ; also on 

 the heights of Point Levis. (Macoun.~) Point Levis. (Shepperd.) It is 

 probable that this species is common on both sides of the Lower St. 

 Lawrence and along the shores of the gulf. It is certainly indigenous. 



(1287.) H. umbellatum, Linn. 



H. Canadense, Michx. Var. angustifolium, Torr. & Gray Fl. II., 476, 

 in part. 



Magdalen Islands, Gulf of St. Lawrence. (McKay.) Apparently 

 extending from the Gulf of St. Lawrence to the Pacific. River 

 margins, Anticosti, common along the Gaspe coast ; from Mani- 

 toba to the Rocky Mountains and north to the Peace River, Lat. 56. 

 (Macoun.) York Factory, Hudson Bay. (ft. Bell.) Vicinity of 

 Dunvogan, Peace River, Lat. 56 ; Kit-a-man River, Kootanie Valley, 

 Rocky Mountains ; Chilcoten River, B.C. (Dawson.) From the Lower 

 Fraser to Lytton B. C. (Fletcher.) From Lake Huron to Fort 

 Franklin on the Mackenzie River in Lat. 66, abundant. (Hooker.) 

 Greenland. (Hook. Arct. PL) 



(1288.) H. Canadense, Michx. 



H. prenanthoides, Hook. Fl. I., 300, not Vill. 



H. virgatum, fasciculatum, and macrophyllum, Pursh. Fl. II., 504. 



River banks and in thickets frequent in Ontario. Halifax, N.S. 

 (Sommers.) Rather rare in New Brunswick. (Fowler's Cat.) Common 

 throughout Quebec and Ontario. The limits of this and the above 

 species are not very well defined, but it is quite evident that there are 

 two distinct forms. The Ontario one being H. Canadense as generally 

 recognized ; while the other, if not, H. umbellatum closely approaches 

 that species. 



