CATALOGUE OF CANADIAN PLANTS. lOI 



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



179. 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. {Macou?i.) Buffalo Lake, Lat. 

 56°, north of He a la Crosse, Atha. (/. M. Macoun.) 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. murorum, (Hoffm.) DC. 



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

 land. {Waghor/ie 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.) 



