118 (lEOLOGICAL SURVEY OF CANADA. 



145. DESMODIUM, DC. iTICK TREFOIL.) 

 (5.3rO D. nudiflorum, !>('. 



Ili<hfmritm niullfli)rinii. l-iim. .Miclix. I'l. II., 71. 



lviil> woodlniuls and sandy tliicdvOt.s. lv;u-e eastward. About (iueboc. 

 (^CIe<jhorn.) Papineau Wood, Montreal. (Holmes.) Rare in caHtorn 

 Ontario. (BillitKjs.) Oak Hills, 1(5 miles north of Hclleville ; near 

 Hriirhton Villatco and at Niagara Falls, Ont. (Macoun.) Vicinit}- of 

 Hamilton. Ont. {Logic.) London, Ont.. not rair. {Burgess.) 



(53i».) D. acuminatum, 1>C. 



Ilethimrum (irnmivatum, Michx. Fl. II., 7:.'. 



IJieh woods ; common throughout Ontario, and eastward in Quebec 

 to the Isle of (Orleans. 



(53T.) D. pauciflorum, DC. 



Kich woods of western Ontario. Woods at Niagara Falls. {Maroun.) 

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



(538.)) D. rotundifolium, DC. 



JI(ih/.'<ar(iiit riilundij'oliiDn, Mi(;hx. Fl. II., 72. 

 J)i-y, sandy woods, near Lomlon, Ont. (Burgess.) 

 (539.) D. cuspidatum, Hook. 



Hediimrum cuspidatum, INIuhl. Pursh, 483. 



H. hracteosum, Michx. Fl. II., 73. 



D. hracU'osum, DC. Hook. Fl. I., 154. 



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

 Ont. {Macimn.) 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. {Douglas.) 



(540.) D. canescens, DC. 



Hedysarum canescens, Linn. Pursli, 482. 

 H. viridiflorum, Willd. Pursh, 482. 



In moi.st soil, Maiden, Ont. {Maclagan.) 



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



Hedi/sarum Marilandicum, Willd. Pursh, 482. 



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

 of Hamilton, Ont. {Logic.) Not rare at London, Ont, {Burgess.) 



