CATALOGUE OF CANADIAN PLANTS. lOl 



23. PLACODIUM, (DC.) Naeg. & Hepp. 

 1V9. P. elegans, (Link.) DC. 



On rocks. 



Greenland. (Arct. Man.) Arctic America. {Richardson^ Mel- 

 ville Island. {R. Brown) Nottingham Island, Hudson Strait. 

 (Dr. R. Bell) On rocks, Fort Chimo, Ungava Bay, Labrador, 

 Aug., 1896. {A. P. Low.) Newfoundland. {Pylaie.) St. John, 

 N.B. (/. Mose-.) Southwest Point, Anticosti. Que. ; falls of the 

 Madeline River, Gaspe Co., Que.; on a large boulder. Gover- 

 nor's Bay, Rockliffe Park, Ottawa, Ont. ; abundant around Lake 

 Nipigon and Lake Superior ; on rocks. Cypress Hills, Assa., and at 

 the " elbow " of the South Saskatchewan, Assa. ; in woods at Banff 

 and along Jumping Pound Creek, Rocky Mountains; at Deer 

 Park, Lower Arrow Lake, Columbia River, B.C. ; Mount Benson* 

 near Nanaimo, Vancouver Island. {Macoun.) Buffalo Lake, Lat. 

 56°, north of He a la Crosse, Atha. (/. M. Mncoun) Harble- 

 down Island, Gulf of Georgia, B.C, {Dr. G. M. Dawson) Islands 

 of Behring Strait. {Wright) Alaska. {Turner) 



Var. trachyphyllum, Tuckerm. 



On boulders in the Cypress Hills, Assa., June loth, 1884. 

 (/. M, Macoun) 



180. P. raurorum, (Hoffm.) DC. 



On rocks, Greenland. {Arct. Man) Labrador or Newfound- 

 land. {Waghorne fide Eckfeldt.) On rocks, Arctic America. 

 {Richardson) On sandstone rocks, "elbow" of South Saskatche- 

 wan, Assa., July i8th, 1879 ; abundant on sandstone rocks. Wood 

 Mountain, Assa., June loth, 1895. {Macoun) 



181. P. fulgens, (Sw.) DC. 



On calcareous soils, Greenland. {Vahl) On earth along Old 

 Wives' Creek, Assa., May 23rd, 1895. {Macoun) 



182. P. cirrochroum, (Ach.) Hepp. 



Labrador or Newfoundland. {Waghorne fide Eckfeldt) 



