l65 _ GEOLOGICAL SURVEY OF CANADA. 



505. B. Pertusaricola, Willey. 



Labrador or Newfoundland. {Waghorne fide Eckfeldt.) On 

 the thallus of a Pertusaria, on poplar trees at Ottawa, Ont., Oct. 

 i6th, 1889. {Macozm.) 



506. B. obscurata, (Ach.) Eckfeldt. 



On rocks, Labrador or Newfoundland. {Waghorne fide Eck- 

 feldt^ Quite common on limestone and other rocks around 

 Ottawa, Ont., and at Aylmer, Que., igoo. (Macoun.) 



507. B. rivularis, (Plot.) Eckfeldt. 



On rocks, Labrador or Newfoundland. {Wa^kgrne fide Eck- 

 feldt.) 



508. B. Copelandi, (Koerb.) Eckfeldt. 



On rocks, Labrador or Newfoundland. (Waghorne fide Eck- 

 feldt.) 



509. B. concreta, (Koerb.) Eckfeldt. 



On rocks, Labrador or Newfoundland. {Waghorne fide Eck- 

 feldt. 



510. B. calcarea, (Weis.) Eckfeldt. 



On rocks, Labrador or Newfoundland. {Waghorne fide Eck- 

 feldt.) 



511 B. rubeseens, (Arn.) Eckfeldt. 



On smooth bark, Labrador or Newfoundland. {Waghorn£ fide 

 Eckfeldt.) 



512. B. verruculosa, Bon. 



On stones, Chimney Cove, Newfoundland. {Waghorne.) 



513. B. reductum, Th. Fr. 



On stones, Birchy Cove and Summerside, Newfoundland. 

 {Waghor?ie.) 



514. B. (Rhizocarpon) empetrseuin, Nyl. 



On rocks, Labrador, 1896 ; on rocks, Lark Harbour, Newfound- 

 land. ( Waghorne.) 



