104 GEOLOGICAL SURVEY OF CANADA. 



191. P. crenulatum, (WAHLENB.) TUCKERM. 



Maritime rocks, Greenland. (Vahl.) Labrador or Newfound- 

 land. (Waghorne fide Eckfeldt.} Sitka, Alaska. (Rothrock.) 



192. P. variabile, (PERS.) NYL. 

 Port Clarence, Alaska. (Rothrock.) 



193. P. vitellinum, (EHRH.) NAEG.& HEPP. 



* 

 On dead wood and rocks. 



Labrador or Newfoundland. (Waghorne fide Eckfeldt.) Green- 

 land. (Arct. Man.) At Fort Franklin, Arctic America. (Rich- 

 ardson^ North Bluff, Hudson Strait. (Dr. R. Bell.) On rocks, 

 Ste. Anne des Monts River, Gaspe Co., Que., Aug. igth, 1882 ; 

 on old rails, in great profusion, Brighton, Ont., common on old 

 rails and boulders around Ottawa, Ont.; and on boulders at 

 Aylmer, Que., 1900. (Macoun.) Behring Strait. (Wright.) Port 

 Clarence, Alaska. (Rothrock.) 



Var. aurellum, ACH. 



Labrador or Newfoundland. (Waghorne fide Eckfeldt.) On 

 rocks, Canada. (A. T. Drummond.) On rocks, Ste. Anne des 

 Monts River, Gaspe Co., Que., Aug. igth, 1882 ; on boulders 

 around Ottawa, Ont., not rare. (Macoun.) 



Var. octosporum, NYL. 



On earth, north shore of Hudson Strait, Aug., 1897. (&* & 

 Bell.) On rocks near Hogsback, Ottawa, Ont., May 2nd, 1895, 

 and on bark of cedar rails near Ottawa, Ont., April I4th, 1897. 

 (Macoun.) 



24. LECANORA, Ach. 



194. L. lent'gera, (WEB.) ACH. 



On earth along the Elbow River, below the Fisher branch, 

 Rocky Mountains, July I2th, 1897 5 on earth at Morley, Bow 

 River Pass, Rocky Mountains, June, 1885. (Macoun.) 



195. L. gelida, (LINN.) ACH. 



On rocks, Greenland. ( Vahl.) On boulders near Stewart's 

 Lake, northern British Columbia, June, 1875. (Macoun.) Cher- 



