228 GEOLOGICAL SURVEY OF CANADA. 



(Thomas.) In profusion on gneiss rocks on the shores of Trembling 

 Lake, Q. (D' Urban.) Lake Mistassini, Q. (J. Richardson.) Thickets 

 on a sandy beach, Lake Joseph and other localities, Muskoka, Ont. 

 (Burgess.) 



(1063.) A. ptarmicoides, TOIT. & Gray. 



Diplopappus albus, Hook. Fl. II., 21. 

 Heleastrum album, DC. Prodr. V., 264. 



Dry soil or rocky banks, scarce eastward. Dry fields near Belleville ; 

 also, west bank of the Trent above Trenton, Ont. Shore of Bed Bay, 

 Lake Huron. North-east shore of Lake Superior, both above and 

 below Michipicotin, and on exposed points, Lake Nipigon. Along the 

 Assiniboine, near Brandon and on the Red Deer River, at the head of 

 Lake Winnipegoosis. (Macoun.) Wood End, Souris River, Lat. 49. 

 (Burgess.) Hurricane Hills, N.W.T. (J. M. Macoun C. P. R. Coll) 

 On the banks of the Saskatchewan, but rare. (Richardson.) Along 

 the Red River, Man. (Douglas.) Stoney Mountain, Man. (Fletcher.) 



(1064.) A. lutescens, Torr. & Gray. 



Diplopappus albus, var. lutescens, Hook. Fl. II., 21. 

 D. lutescens, DC. Prodr. V., 278. 



On dry elevated ground of the Assiniboine River, Man. (Douglas.) 

 West of the Touchwood Hills, 1872, not detected since. (Macoun.) 

 This form differs from the preceding in its simple corymb, rough hairy 

 stem, leaves lanceolate and scabrous hairy. 



(1065.) A. angustus, Torr. & Gray. 

 Tripolium angustun, Hook. Fi. II., 15. 



Saskatchewan and towards the Rocky Mountains. (Drummond.) 

 Slave Lake. (Richardson.) Salt marsh borders at Old Wives Lakes, 

 and westward to the Rocky Mountains, and northward to Lake Atha- 

 basca. (Macoun.) 



(1066.) A. pauciflorus, Nutt. 



Tripolium subulatum, Nees. Hook. Fl. II., 15. 



Margin of saline lakes and in salt marshes. Marshes of the Saskat- 

 chewan. (Drummond.) Very abundant in salt marshes along Lake 

 Winnipcgoosis, and up the Red Deer River, Lat. 53 ; also, in all salt 

 marshes in the prairie region, and north of the North Saskatchewan, 

 above Fort Pitt. (Macoun.) Wood Mountain, Lat. 49. (Dawson.) 



