I08 CUMMINGS 



sema^ and 836^2 with Buellia parasema, Placodium cerinum^ etc. 

 The localities that Rothrock gives are Cook Inlet, Unalaska, and Port 

 Clarence. Nylander reports its occurrence on Bering Island, on the 

 Asiatic side of Bering Strait. 



no. Lecanora subfusca allophana Ach. 



Lecanora subfusca allophana Acharius, L. U. 395. 18 10. 



Mouth of Sturgeon River, Kadiak Island (Trelease, 857 in part) ; 

 St. Lawrence Island (Trelease, 854) ; Cape Fox (Trelease, 855) ; St. 

 Michael (Setchell). New to Alaska. 



All except the specimen from St. Michael growing on dead wood, 

 and all well fruited. Theloschistes lychneus pygmceus is with No. 

 857. Reported from Greenland, and common throughout the United 

 States. 



111. Lecanora subfusca argentata Ach. 

 Lecanora subfusca argentata Acharius, L. U. 393. 18 10. 



Cape Fox (Trelease, 856). On dead wood. New to Alaska. 

 The most northern record for this variety. 



112. Lecanora subfusca coilocarpa Ach. 

 Lecanora subfusca coilocarpa PlCKX^ivs, L. U. 393. 1810. 



Muir Glacier, Glacier Bay (Trelease, 814, on Sah'x) ; Virgin Bay, 

 Prince William Sound (Trelease, 978, on rock with Placodium 

 murorum) . New to Alaska. 



I find no record for Greenland, but reference is made to it in Dr. 

 Arnold's list of Newfoundland lichens. 



113. Lecanora frustulosa (Dlks.) Ach. 



Lichen frusttdosus Dikson, Crypt. Brit, 3: 13. /. 8. f. i. 1785-1801. 

 Lecanora frustulosa Acharius, L. U. 405. 1810. — Sowerby, Eng. Bet. /. 

 2273. 



Kadiak (Trelease, 911, 943) ; St. Michael (Setchell). No spores 

 are developed, and therefore the determination is not absolutely certain. 

 It compares well with authentic specimens In the Tuckerman Her- 

 barium. It has been found In Greenland. A specimen collected by 

 Dr. Hayes at Taku seems to belong here. 



114. Lecanora pallida (Schreb.) Schaer. 



Lichen pallidus Schrkbkr, Spicil. 155. 1771. 



Lecanora pallida Schaerer, Enum. 78. 1850. — Sowerby, Eng. Bot. /. 21^4. 



Orca (Trelease, 808) . On bark. New to Alaska, though reported 

 from Arctic America by Richardson. 



