IO6 CUMMINGS 



rence Island is well fruited, the others are sterile. The variety has 

 been reported from St. Paul Island by Macoun and from Port Clarence 

 by Nylander ; and under the synonym Parmelia tartarea frigida it is 

 recorded by Babington as collected at Kotzebue Sound. 



100. Lecanora tartarea pterulina Nyl. 



Lecanora tartarea pterulina NYLANDER, Lich. Fr. Behr. 44. 1888. 



Kadiak (Trelease, 870) ; Hall Island (Trelease, 869, 1017 ; Coville 

 and Kearney, 2064) ; St. Matthew Island (Brewer and Coe, 678). 



The specimens are very fine. The one from Kadiak was growing 

 on dead herbaceous spermatophytes. The material examined by Ny- 

 lander was collected on St. Lawrence Island. Dr. Lindsay, in his 

 Observations upon West Greenland Lichens, gives an interesting 

 account of the variation of L. tartarea as exhibited by the Greenland 

 specimens. 



101. Lecanora pallescens (L.) Schaer. 



Lichen pallescens LINNAEUS, Sp. PL 2: 1142. 1753. 



Lecanora pallescens SCHAERER, Enum. 78. 1850. HOFFM. Plant. Lich. /. 21. 

 f. 2 a, b. 



Broughton Strait, Vancouver Island (Trelease, 85 1 ) . On dead wood. 

 The other Alaskan records are Sheep Creek (Dr. Cooley) ; Chuga- 

 chik Bay, Cook Inlet (Rothrock) ; and Port Clarence (Nylander). 



102. Lecanora varia (Ehrh.) Ach. 



Lichen varius EHRHART, Plant. Crypt. Dec. 7: n. 68. 1785. 



Lecanora varia ACHARIUS, L. U. 377. 1810. SOWERBY, Eng. Bot. /. 1666. 



Chichagof Bay (Palache,925) ; Sitka (Trelease, 810, 8220) ; Kadiak 

 (Trelease, 899 in part) ; Port Clarence (Trelease, 890 in part, 939 in 

 part) ; Whale Island, St. Michael (Setchell). Specimens are on bark 

 of Alnus oregona, on dead wood and on rock. Mixed with this spe- 

 cies are Buellia geographica, B. myriocarpa, Lecanora atrosulphu- 

 rca, and Parmelia saxatilis omphalodes. New to Alaska. 



Though new to Alaska, it has been reported by Rothrock from 

 Plover Bay, Siberia, collected by Dr. Bean. 



103. Lecanora varia intricata (Ach.) Nyl. 



Lecanora intricata ACHARIUS, L. U. 380. 1810. 



Lecanora varia intricata NYLANDER, Lich. Scand. 164. 1861. 



Kadiak (Trelease, 900 in part) ; Port Clarence (Trelease, 939 in 

 part, 940). Mixed with Buellia geographica, B. myriocarpa, Le- 

 canora varia and L. privigna revertens, Pertusaria communis, and 

 Parmelia saxatilis omphalodes. New to Alaska. Reported from 

 Konyam Bay by Nylander. 



An alpine and arctic species. 



