1 66 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. (Macoun.) 



506. B. obscurata, (Acn.) ECKFELDT. 



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

 feldt) Quite common on limestone and other rocks around 

 Ottawa, Ont., and at Aylmer, Que., 1900. (Macoun.) 



507. B. rivularis, (PLOT.) ECKFELDT. 



On rocks, Labrador or Newfoundland. (Waghorni fide Rck- 

 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. rubescens, (ARN.) ECKFELDT. 



On smooth bark, Labrador or Newfoundland. (Waghorne fide 

 Eckfeldt.) 



512. B. verruculosa, BON. 



On stones, Chimney Cove, Newfoundland. (Waghorne ?) 



513. B. reductum, TH. FR. 



On stones, Birchy Cove and Summerside, Newfoundland. 

 (Waghorne.) 



5U. B. (Rhizocarpon) empetraeum, NYL. 



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

 land. ( Waghorne) 



