CATALOGUE OF CANADIAN PLANTS. IOI 



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

 iV9. 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 lie a la Crosse, Atha. (/. M. Maccun.) Harble- 

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

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



Var. trachyphyllum, TUCKER M. 



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. (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.) 



382. P. cirrochroum, (ACH.) HEPP. 



Labrador or Newfoundland. (Waghorne fide Eckfeldt.) 



