Contrihiitions to Canadian Botany. 47 



HKLIA^'TI1US DIVAKICATUS, L. 



Our specimens of this species show a wider range of 

 cauline leaf forms than are inchided in Gray's descrip- 

 tions. They vary from the ovate-lanceolate form, deeply 

 and regularly serrate, to ovate with ohtiisc or rounded tips, 

 with the serration barely apparent. Specimens collected 

 at The Chats, Ottawa Iliver, by Mr. Cowley, are farthest 

 from typical divaricatiis — the truncate, sessile, obtuse 

 leaves, not being even divaricate. 



Helia>;thus rigipus, Desf. 



In thickets, Eevelstoke, B.C. {John Macoun.) Not 

 before recorded west of prairie region. Probably intro- 

 duced from the east along the Canadian Pacific Ptailway. 



BiDENS CERNUA, L. 



New Westminster, B.C. Herb. Nos. 457 and 458. 

 (John Macoun.) Not before recorded west of liocky 

 Mountains. 



BiDENS FRONDOSA, L. 



New Westminster, B.C. Herb. No. 456. {John Macoun.) 

 Not before recorded west of Piocky Mountains. 



Madia filipes, Gray ; Macoun, Cat. Can. Plants, Vol. I., 

 p. 248. 

 Nanaimo, Vancouver Island, Herb. No. 461 ; Deer Park, 

 Lower Arrow Lake, Columbia Kiver, B.C. {John Macoun.) 



Artemisia absinthium, L. 



Waste places at Medicine Hat, Assa., 1895. {John 

 Macoun, Herb. No. 10,980.) Not before recorded west of 

 Ontario. 



Artemisia Ludoviciana, Nutt. 



Along roadsides at Port Arthur, Ont., 1889. {Dr. and 

 Mrs. N. L. Britton and Miss Timmcrman.) On the Cana- 



