228 GEOLOGICAL SURVEY OF CANADA. 



{Thomas.) la profusion on gneiss rocks on the shores of Trembling 

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

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

 {Burgess.) 



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



Diplopappus albuSjUook. Fl. II., 21. 

 Heleastnvm 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 Eed 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 Eed Deer Eiver, at the head of 

 Lake Winnipegoosis. {Macoun.) "Wood End, Souris Eiver, Lat. 49°. 

 {Burgess.) Hurricane Hills, N.W.T. {J. M. Macoun 0. P. B. Coll.) 

 On the banks of the Saskatchewan, but rare. {Bichardson.) Along 

 the Eed Eiver, Man. {Douglas.) Stoney Mountain, Man. {Fletcher.) 



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



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

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



On dry elevated ground of the Assiniboine Eiver, 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 anguslun. Hook. Fl. II., 15. 



Saskatchewan and towards the Eocky Mountains. {Drummond.) 

 Slave Lake. {Bichardson.) Salt marsh borders at Old "Wives Lakes, 

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

 basca. {Macoun.) 



(1066.) A. pauciflorus, Nutt. 



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



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

 chewan. {Drummond.) Tery abundant in salt marshes along Lake 

 "Winnipegoosis, and up the Eed Doer Eiver, 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.) 



