210 GEOLOGICAL SURVEY OF CANADA. 



north-westward to Edmonton. (Macoun.) Turtle Mountain and west- 

 ward to the Rocky Mountains on dry prairie, 49th parallel. (Dawson.) 

 Rocky Mountains, near Jasper's Lake, Lat. 54. (Drummond.) 



(974.) H. lanceolatUS, Torr. & Gray. 



Ajylopappiis lanceotus, Torr. & Gray. Macoun's Cat., No. 931. 

 Donia lanceolata, Hook. Fl. II., 25. 



On saline marshy prairie, not uncommon, from Manitoba westward 

 to the base of the Eocky Mountains. (Macoun.) Saskatchewan River 

 between Carl ton and Edmonton. (Drummond.) First branch of Milk 

 River on the 49th parallel. (Dawson.) 



(975.) H. uniflorus, Torr. & Gray. 



Aplopappus uniflorus, Torr. & Gray. Macoun's Cat., No. 933. 

 Donia urn flora, Hook. Fl. II., 25. 



Plains of the Saskatchewan and prairies of the Rocky Mountains. 

 (Drummond.) We are unacquainted with this species. 



(976.) H. Nuttallii, Torr. & Gray. 



Aplopappus Nutlallii, Torr. & Gray. Macoun's Cat., No. 934. 

 On dry clay, or gravelly banks, not common. On gravel ridges west 

 of Moose Mountain ; at the eastern end of the Cypress Hills, and the 

 Elbow of the South Saskatchewan, N. W. T. (Macoun.) Dry bank at 

 the Crossing of the White Mud River or Frenchman's Creek, 49th 

 parallel. (Daicson.) On the Saskatchewan. (Bourgeau.) 



(977.) H. acaulis, Gray, Var. glabratus, Watson. 



Aplopappus acaulis, Gray, var. Macoun's Cat, No. 935. 

 Aplopappus, Sp. I. Dawson Bound. Rep. 363. 

 Stenotus csespitosus, Nutt- Torr. & Gray Fl. II., 238. 



On dry clay, or gravel clifts or ridges. Elbow of South Saskatchewan 

 and on the eastern end of the Cypress Hills, highest point of ridge. 

 (Macoun.) Short Creek, Souris River, 49th parallel, growing in dense 

 tufts. (Dawson.) 



270. BICELOVIA, DC. 



(978.) B. graveolens, Gray. Var. hololeuca, Gray. 



Linosyris graveoltns, var. /?. Torr. & Gray. Macoun's Cat., No. 929. 

 L. Hmmrdii, Parry. Dawson Bound. Rep , 365. 

 Chrysocoma nauseosa, Pursh Fl. II., 517, in part. 



On denuded and alkaline soil that is very arid. Banks of Cotton- 

 wood Creek, 18 miles south of Fort Walsh: also, on an arid tract south- 

 east of Island Lake, near Medicine Hat, N.W.T. (Macoun.) Second 



