CATALOGUE OF CANADIAN PLANTS. 181 



(Thomas.) Montreal Mountain. (Maclagan.) Abundant from Prescott 

 westward throughout Ontario. 



220. THASPIUM, Nutt. (MEADOW PARSNIP.) 





 (848.) T. barbinode, Nutt. 



lAgusticum barbinode, Michx. Fl. I., 167. 



Vicinity of London, Ont. (Burgess.) On the Canada Southern 

 Railway, between Colchester Station and Amherstburg. (Macoun.) 

 Chippawa and Detroit River. (Maclagan.') 



(849.) T. aureum, Nutt. 



Smyrnium aureum, Linn. Michx. Fl. L, 171. 

 Sison trifoliatum, Michx. Pursh, 194. 

 Zizia aurea, Koch. Hook. Fl. I., 260. 



Dry thickets and moist river banks. Along the St. John River, N.B. 

 (Fowler's Cat.) Quebec, Isle of Orleans, and other places. (Brunet.) 

 Nun's Island, near Montreal. (Holmes.) Montreal Mountain; and 

 Knowlton, Eastern Townships. (McGill Coll. Herb.) Banks of Con- 

 way's Creek, Prescott. (Billings.) Prince's Island, near Hamilton, 

 Ont. (Logie.) Islands in the Detroit River. (Maclagan.) Common 

 around London, Ont. (Burgess.) 



(850.) T. trifoliatum, Gray. 



Smyrnium cordatum, Walter. Pursh, 196. 

 S. trifoliatum, Muhl. Richards, in Frankl. Journ., 6. 

 Thaspium cordatum, Torr. & Gray, Fl. I., 615. 

 Zizia cordata, Koch. Hook. Fl. I., 260. 



Abundant from the eastern borders of the prairie westward to the 

 Rocky Mountains, and northward to the Peace River. (Macoun.) 

 Abundant over the first and second prairie steppes, Lat. 49. (Dawson.) 

 Saskatchewan, and the River Winnipeg, and the prairies of the Rocky 

 Mountains. (Drummond.) This species is quite variable, but we have 

 not limited the varieties. 



221. CICUTA, Koch. (WATER HEMLOCK.) 



(851.) C. maculata, Linn. Spotted Cowbane. 

 Sium (?) Douglasii, DC. Hook. Fl. I., 263. 



From the Atlantic to the Coast Range of British Columbia, and north 

 on the Mackenzie to Lat. 64. Coast east of Mackenzie River. (Hook. 

 Arct. PI.) The roots of this and following species are deadly poisons. 



