CATALOGUE OF CANADIAN PLANTS. 181 



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

 westward throughout Ontario. 



220. THASPIUM, Nutt. (MEADOW PARSNIP.) 

 (848.) T. barbinode, Nutt. 



lAguBticum barbinode, Michx. Fl. I., 167. 



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

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

 Chippawa and Detroit Eiver. (Maclagan.) 



(849.) T. aureum, Nutt. 



Smymium aureum, Linn. Michx. Fl. I., 171. 

 Sison irifoUaium, Michx. Pursh, 194. 

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



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

 (Fowler's Oat.) Quebec, Isle of Orleans, and other places. (Bnunei.) 

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

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

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

 Ont." (Logie.) Islands in the Detroit Eiver. (Maclagan.) Common 

 around London, Ont. (Burgess.) 



(850.) T. trifol latum, Gray. - 



Smymium cordatum, Walter. Pursh, 196. 

 S. trifoKatum, 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 

 Eocky Mountains, and northward to the Peace Eiver. (Maeoun.) 

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

 Saskatchewan, and the Eiver "Winnipeg, and the prairies of the Eocky 

 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. 



Slum (f) Douglam, DC. Hook. Fl. I., 263. 



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

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

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



