118 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. Rare eastward. About Quebec. 

 (Cleghorn.) Papineau Wood, Montreal. (Holmes.) Rare 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. 



Rich woods ; common throughout Ontario, and eastward in Quebec 

 to the Isle of Orleans. 



(537.) D. pauciflorum, DC. 



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

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



(538.)) D. rotund if olium, DC. 



Hedysarum rolundif olium, Michx. Fl. II., 72. 

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



(539.) D. cuspi datum, Hook. 



Hedysarum cuspidatum, Muhl. Pursh, 483. 



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



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



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

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

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

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

 Queenston Heights. (Doug Cos.) 



(540.) D. canescens, DC. 



Hedysarum canescens, Linn. Pursh, 482. 

 H. viridiflorum, Willcl. Pursh, 482. 



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

 (541.) D. Dillenii, Darling. Macoun's Cat., No. 469. 

 Hedysarum Marilandicum, Willd. Pursh, 482. 



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

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



