1902] Macoun — Contributions to Canadian Botany. 273 



silphium terebinthinaceum, l. 



VValpole Island, St. Clair River, Ont. (C. K.Dodge.) In 

 thickets at Sandwich and Windsor, Ont. {John Macoun.) 



Helianthus petiolaris, Nutt. 



Along the C. P. Ry. at Cache Lake, Ont. 1900. [John 

 Macoun.) Introduced trom the west. 



Helianthus annuus, L. 



Head of Queen street, near High Park, Toronto, Ont. 

 1 90 1 . {John Macoun. ) 



Chrysanthemum segetum, L. 



Near the tannery at Tilsonburg, Ont. 1901. {Macoun.) A 

 garden escape. Not recorded from Ontario. 



Chrysanthemum coronarium, L. 



A garden escape at Tilsonburg, Norfolk Co., Ont. {John 

 Macoun.) 



Artemisia caudata, Michx. 



Abundant in sandy fields at Sarnia, Lambton Co., Ont. 

 Collected in recent years by C. K. Dodge and by Prof. 

 . Macoun in 1901. Herb. No. 26,339. The plants from Mani- 

 toba referred here in Macoun's Catalogue of Canadian Plants, 

 vol. I, p. 256, are A. Caiiadensis. 



Artemisia Abrotanum, L. 



Roadsides at Allenford between Southampton and Owen 

 Sound, Ont. 1901. {Macoun.) Not before recorded in these 

 papers. 



Senecio Plattensis, Nutt. 



Woods at Sandwich, Ont. Herb. No. 26,673, ^"^ ^^ 



Camlachie, seven miles from .Sarnia, Ont. Herb. No. 26,674, 

 1901. {John Macoun.) New to Canada. 



Carduus Hillii, (Canby.) Porter. 



On shingle, Little Eagle Harbour, Lake Huron. Aug. 

 23rd, 1901. Herb. No. 26,454. {John Macoun.) Specimens 

 referred to Cnicus pumilus, Macoun, Cat. Can. Plants, vol. i, 

 p. 555 are this species. 



