lis GEOLOGICAL SURVEY OP CANADA. 



145. DESMODIUM, DC. (TICK TREFOIL.) 

 (535.) D. nudiflorum, DC. 



Hedysarum nudiflorum, Linn. Michx. Fl. II., 71. 



Eich woodlands and sandy thickets. Eare eastward. About Quebec. 

 {Cleghorn.) Papineau Wood, Montreal. (Holmes.) Eare in eastern 

 Ontario. (Billings.) Oak Hills, 16 miles north of Belleville ; near 

 Brighton Village and at Niagara Falls, Ont. (Macoun.) Vicinity of 

 Hamilton, Ont. (^Logie.) London, Ont., not rare. (Burgess.) 



(536.) D. acuminatum, DC. 



Hedysarum acuminatum, Michx. Fl. II., 72. 



Eich woods ; common throughout Ontario, and eastward in Quebec 

 to the Isle of Orleans. 



(531.) D. pauciflorum, DC. 



Eich woods of western Ontario. Woods at Niagara Falls. (Macoun.) 

 Vicinity of Hamilton, Ont. (Logie.) Prescott, Ont., rare. (Billings.) ? 



(538.)) D. rotundifolium, DC. 



Hedysarum rolundifolium, Michx. Fl. II., 72. 

 Dry, sandy woods, near London, Ont. (Burgess.) 



(539.) D. cuspldatum, Hook. 



Hedysarum cuspidatum, Muhl. Pursh, 483. 

 H. bracteosum, Michx. Fl. II., 73. 

 D. firacteosum, DC. Hook. Fl. I., 154. 



Eocky thickets ; rather local. Meyersburg, Northumberland Co., 

 Ont. (Jfacoun.) Vicinity of Ottawa. [?] (Fletcher Fl. Ott.) Hamilton, 

 Ont. (Buchan.) Cayaga, St. Catharines, and Maiden, Ont. (Maclagan.) 

 Vicinity of London, Ont. (Burgess.) Near Fort Brie, rare ; also, at 

 Queens ton Heights. (Douglas.) 



(540.) D. canescens, DC. 



Hedysarum canescens, Linn. Pursh, 482. 

 H. riridiflorwn. Willd. Pursh, 482. 



In moist soil, Maiden, Ont. (Maclagan.) 



(541.) D. Dillenil, Darling. Macouu's Cat, No. 469. 



Hedysarum ilarilandiciim , Willd. Pursh, 482. 



Dry, rather open thickets, Queenston Heights. (Macoun.) Vicinity 

 of Hamilton, Ont. (Logie:) Not rare at London, Ont. (Burgess.) 



