THE HAMILTON ASSOCIATION. 47 



of Goldie, who records it as occurring in rich alluvial soil on the 

 shore of Lake Erie. I am myself of the opinion that Baptisia 

 tinctoria, which occurs as described, is the species referred to, but 

 am at a loss to understand how such an error could have been 

 made. It is of course quite possible that I am wrong in my 

 conjecture and that Baptisia leiicantha, which is a native of Ohio, 

 may yet be rediscovered. 



7. Sedum ter?iatum, Mx. Rocks in the Niagara River and 

 Lake Erie (Douglas, 1823); vicinity of Hamilton, Ont. (Buchan) 

 Prof. Macoun says this is a doubtful species and should be carefully 

 looked for and verified. 



8. Ludwigia alternifolia, L. In swamps, Canada. (Hooker, 

 Fl. Bor. Am. — Torrey and Gray, Fl. N. Am.) Another doubtful species. 

 No exact locality is ascribed for it by these authors, but if it occurs 

 with us at all it will probably be along the Lake Erie shore. 



9. Archangelica hirsuta, T. & G. Both Pursh and Michaux 

 credit this species to Canada, but do not say to what part. If found 

 it will almost certainly be in the neighborhood of Lake Erie. 



10. Liatrissauarrosa,Wi\\d. Dry gravelly or sandy soil, Western 

 Ontario (Gray) Neither this species nor its variety intermedia, D C, 

 which occurs in the same situations as the type, have been noticed 

 by any of the late collectors. 



11. Helianthus parviflorus, Bernh. Thickets in alluvial soil in 

 Western Ontario (Goldie, vide T. and G., Fl. N. Am.) 



12. Cacalia atrip licifolia, L., (Indian Plantain) Canada (Cleg- 

 horn, vide Hooker) Moist woodlands, Western Ontario (X. and G.) 

 Not collected recently. 



13. Krigia Virginica, Willd. Sandy ground, Western Ontario 

 ( Gray) 



14. Sabbattia angularis, Pursh. Rich soil, Western Ontario 

 ( Gray) Prof Macoun says that this species as a Canadian plant is 

 unknown to him. My friend, Mr. Yates, of Hatchley, Ont, tells me 

 he once found a Sabattia in the Erie district but did not know the 

 species and had lost the specimen. It is probable that it was the 

 same as Gray refers to. 



15. Pycnanthemum incanum, Mx. Dry soil, Canada (Goldie) 

 New England to Western Canada (Gray) Hamilton, Ont. (Logie) 



