164 GEOLOGICAL SURVEY OF CANADA, 



489. B. Rittokensis, HELLB. 



On rocks, Cape York, Arctic America. (Th. Fries.} 



490. B. colludens, NYL. (TUCKERM.) 



Labrador or Newfoundland. (Waghorne fide Eckfeidt?) On 

 rocks along the St. Lawrence below Quebec. (A. T. Drummond} 

 Chamisso Island, Arctic Ocean. (Rothrock} 



491. B. excentrica, (NYL.) ECKFELDT. 



Labrador or Newfoundland. (Waghorne fide Eckfeidt.} 



492. B. badio-atra, (SCILER.) KOERB. 

 Rocks in alpine and arctic regions. 



Greenland. (Vahl} Labrador or Newfoundland. (Waghorne 

 fide Eckfeidt.} On rocks, Deer Park, Columbia River, B.C., June 

 ;th, 1890. (Macoun.} 



493. B. petrsea, (FLOT.) TUCKERM. 



Common on rocks and dead wood. 



Greenland. (Vahl} Labrador or Newfoundland. (Waghorne 

 fide Eckfeidt} On rocks along the St. Lawrence below Quebec. 

 (4. T. Drummond} On granite boulders in Rockcliffe Park, 

 Ottawa, Ont.; at Belleville and Shannonville, Hasting^ Co., Ont; 

 at Lake Nipigon, Ont. (Macoun.} St. Paul Island, Kadiak Is'and 

 and Port Clarence, Alaska. (Rothrock) 



Var. Montagnsei, TUCKERM. 



Labrador or Newfoundland. (Waghorne fide Eckfeidt} On 

 granite boulders " elbow" of South Saskatchewan River, Assa., 

 July 1 3th, 1879. (Macoun} St. Paul Island and Unalaska Island, 

 Cook's Inlet and Port Clarence, Alaska. (Rothr.ck} 



Var. grandis, FLCERKE. 



Labrador or Newfoundland. (Waghorne fide Eckfeidt.} On 

 granite boulders in Rockcliffe Park, Ottawa, Ont., April 22nd, 

 1897. (Macoun} 



494. B. empetraea, NYL. 



On rocks and stones Labrador or Newfoundland. (Waghorne} 



495. B. coniopsoideum, (HEPP ) ECKFELDT. 

 Labrador or Newfoundland. (Waghorne fide Eckfeidt} 



