I06 GEOLOGICAL SURVEY OF CANADA. 



198. L. pallida, (Schreb.) Sch^er. 



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



Arctic America. {Richardson.) Labrador or Newfoundland. 

 {Waghorne ^de Eckfeldt.) On trunks of trees, Rigaud Mountain, 

 Vaudreuil Co., Que. {Rev. G. Ducharfne.) 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 14th, 1901 ; on bark of maple trees, 

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

 River and Lake, Ont. ; on bark of Abuts 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. {Waghorfie fide Eckfeldt.) 

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

 on rocks, Wood Mountain, Assa., June 12th, 1895. {Macoun.) 

 South Fowl Lake, boundary between Minnesota and Ontario, 

 1897. {Fiyik.) 



200. L. frustulosa, (Dicks.) Mass. * 

 On rocks, Greenland. {Vahl.) 



201. L. sabfusca, (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 ICdmonton, 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, 



