4 PBOCEETtDsGS OF UNITED STATES NATIONAL MUSEUM. 



Placodixun variabile, (Pers.) Nyl. 

 Port Clarence. Alaska. 



Fiacodium nivaie, Koerb. 

 LcKi-Ality not given- 



Lecanora mnralis, vSclireb.) Sch«j. 



Cliffs on Saiur Matthew's Island. Saint Panl"s Island, Sitka, Una- 

 lashka, and elsewhere: apparently very common. 



Lecanora eelida, (L. ) Ac-li. 



Chernofski Island. Unalashka, Belkofsski, Aliaska Peuinsnla. 



Lecanora paUescens, (L.) Seluer. 

 Chnir«icluek Bay. Cook's Inlet. 



Iiecanora tartarea, (L.) Ach. 



Shuma^u Gronp. Unalaslika Island. Cape Lisburne, Arctic Ocean. 



Lecanora atra, Huds.) Aeh. 

 Cape Lisburne. Alaska, 



Lecanora subfasca, .L.; Ach. 



Cook's Inlet. Unalashka, Port Clarence. 



Ijecanora snbfusca. (L.) Ach- var. h3rpnoram, Schar. 

 Port Clarence. Cape Lisburne. 



Iiecanora Haeeni Acli. 

 Cax>e Lisbnme. Alaska, 



Lecanora vaiia, (Eiirh,) NvL 

 Plover Bay. Eastern Siberia. 



Iiecanora cinerea, (L.) SonunerL 



Port Clarence, Icy Cape, and Cai)e Lisborne, in Alaska. 



Iiecanora cinerea, (L.) Sommerfl rar. gibbosa, NyL 



Lecanora cinerea. ''L."^ Sommerf. rar. lacustiis, (With.) NyL 

 Plover Bay. Eastern Siberia. 



Ifecanora vermco^ i Atrh- J Laur. 

 Esckscboltz Bay. Arctie Ocean. 



Lecanora glaucomela, Tuckerm. 



Lecanora cervina, (Pers.) NyL 

 Eschscholtz Bay. 



Lecanora cervina, Pers.) NyL Tar. disecreta, Sommerf. 

 Port Clarence. Alaska. 



Bsnodina nimbosa, (Er.) Th. Fr. 



Cai>e Lisbnme, Arctic Ocean. 



