116 GEOLOGICAL SURVEY OF CANADA. 



(527.) O. campestris, DC. Hook. FI. I, 147. 



0. borealis, DC. Hook. Fl. L, 145. 



Islands in St. John Eiver, N.B. (Bailey.*) Edmundton and along 

 the banks of the Upper St. John, N.B. (Hay.} Cliffs near Cape "St. 

 Louis, Gasp coast. (Macovn.) Isle of Orleans, and coast of Labrador. 

 (Brunei.) From Carlton to the Rocky Mountains, and as far as the 

 sources of the Columbia (Douglas.) Bear Lake to the Arctic shores 

 and islands. (Richardson.) At Spence's Bridge, B.C. Throughout the 

 prairie region, very common. (Macoun.) Kotzebue Sound. (Eothr. 

 AlasJc.) Baffin's Bay. (Hooker.) 



Var. vise id a, Watson. 



0. visdda, Nutt. Torr. & Gray, Fl. I, 341. 

 0. campestris. ? PL Bourgeau, 256. 



Saskatchewan Plains. (Bourgeon.) Bow Eiver at the Blackfoot 

 Crossing and at Morley, N.W.T. (Macoun.) 



(528.) O. Lamberti, Pursh, 740. . 



0. Hookeriana, Nutt. Torr. & Gray, Fl. I., 340. 

 0, Plattensis, Nutt. Torr. & Gray, Fl. I., 340. 

 0. sericea, Nutt. Torr. & Gray, Fl. L, 339. 



Dry banks on the Eed Eiver and Saskatchewan. (Douglas.) Prairies 

 in the valleys of the Eocky Mountains. (Drummond.) Yery abundant 

 throughout the prairie region. (Macoun.) North Antler Creek, 

 White Mud Eiver, and First Crossing of the Souris, N.W.T. ; always on 

 dry ground. (Dawson.*) 



(529.) O. nana, Nutt. 



? 0. argentata, Pursh. Hook. Fl. L, 146. 



Woody country, Lat. 54-64. (Richardson.) 

 (530.) O. nigrescens, Fisch. Hook. Fl. I, 147. 



Island of St. Lawrence in Behring's Straits. (De Candolle.) 

 (531.) O. splendens, Dougl. 



On limestone rocks of the Eed Eiver and south to Pembina. (Douglas.) 

 Very abundant from Brandon, westward to the Eocky Mountains, 

 throughout the prairie region. (Macoun.) Turtle Mountain, N.W.T. 

 (Dawson.) 



Var. Richardson!, Hooh. Fl. I., 148. 



0. oxyphylla, Richards, in Frankl. Journ. 17. 

 From Cumberland House on the Saskatchewan, north to Fort Frank- 



