IO6 GEOLOGICAL SURVEY OF CANADA. 



198. L. pallida, (SCHREB.) SCH^R. 



On trunks of trees and fence-rails, not uncommon. 



Arctic America. (Richardson) Labrador or Newfoundland. 

 (Waghorne&fe Eckfeldt.) On trunks of trees, Rigaud Mountain, 

 Vaudreuil Co., Que. (Rev. G. Dttcharme.) On bark of trees at 

 Baddeck and Margaree, Cape Breton Island, N.S., July, 1898 ; on 

 bark of trees at Truro, N.S. ; on basswood bark, Dow's Swamp 

 and other places around Ottawa, Ont. ; on young pine trees at 

 Carleton Place, Carleton Co., Ont. ; on bark of trees, Central 

 Ontario Junction, Hastings Co., Ont. ; on tree-trunks around 

 Niagara Falls, Ont., May I4th, 1901 ; on bark of maple trees, 

 Algonquin Park, Ont., July, 1900 ; on bark of trees, Nipigon 

 River and Lake, Ont. ; on bark of Alnus rubra, Hastings, Burrard 

 Inlet, B.C. (Macoun.) 



Var. cancriformis, TUCKERM. 



On large trunks in woods, McKay's Bush, Ottawa, Ont. ; on 

 trunks of beech trees at Belleville, Hastings Co., Ont. (Macoun.) 



199. L. sordida, (PERS.) TH. FR. 



Greenland. (Arct. Man.) On rocks, Arctic America. (Richard- 

 son.) Labrador or Newfoundland. (Waghorne fide Eckfeldt) 

 Summit of Mount Albert, Gaspe Co., Que., August 26th, 1882 ; 

 on rocks, Wood Mountain, Assa., June I2th, 1895. (Macoun?) 

 South Fowl Lake, boundary between Minnesota and Ontario, 

 1897. (Fink.) 



200. L. frustulosa, (DICKS.) MASS. 

 On rocks, Greenland. (Vahl.) 



201. L. subfusca, (LINN.) ACH. var. allophana, ACH. 



Greenland. (Arct. Man.) Labrador and Newfoundland. (Wag- 

 horne fide Eckfeldt.) On trees, Rigaud Mountain, Vaudreuil Co., 

 Que. (Rev. G. Ducharme.) On beech trees at Edmonton, Ont. 

 (James White.) On aspen poplar, Greenwood Township, Man. 

 (Thos. Walker.) On old fence boards and logs, Sable Island, N. 

 S., July, 1899; common on trunks and old logs at Baddeck, Grand 

 Narrows and Margaree, Cape Breton Island, N.S., July, 1898 ; on 

 bark of trees at Truro, N.S.; on drift wood by the sea, Jupiter River, 



