1898-1902. No. 21-] LICHENS. 15 



Arthonia, ACH. 



Artlionia fusca MASS.- TH. FR. Spits, p. 46. Spitsb. On stone. 

 Arthonia excentrica TH. FR. ALMQ. Arth. Scand. p. 55. Spitsb. 



- Over moss. 



Arthonia trabinella TH. FR. -- ALMQ. Arth. Scand. p. 30. -- Greenl. 



Gorticolous. 



Arthonia proximella J\YL. - - TH. FR. Arct. 205. - - Greenl., Icel. - 

 Corticolous. 



Arthonia punctiformis ACH. --ALMQ. Arth. Seand. p. 42. Icel. 

 Gorticolous. 



Xylographs, FR. 



Xylogmpha parallela ACH. - - TH. FR. Arct. p. 242. - - Greenl. 

 Old wood. 



Lecideales. 

 Rhexophiale TH. FR. 



RJiexophiale corouata TH. FR. - - TH. FR. Arct. p. 205. - - Greenl., 

 Spitsb. -- Over earth and moss. 



Gyalecta ACH. 



Gyalecta cupularis EHRH. - TH. FR. Arct. p. 140. - - Icel. - - Over 

 rocks and moss. 



Racodium E. FR. 



Racodium rupestre PERS. -- ZAHLBR. Fiecht. p. 128. -- Greenl., Icel. 



Over rocks. 



Secoliga NORM. 



Secoliga foveolaris (Acn.) KBR. - TH. FR. Arct. p. 138. - - Icel. - 

 Over moss and earth. 



Secoliga Peziza (MoNT.) ANZI. - - TH. FR. E. Pol. Exp. p. 367. --Am. 



- Over turfy earlh. 



Lecidea ACH. 



Lecidea aglaea SMRFT. - TH. FR. Scand. p. 534. -- Greenl., Spitsb., 

 Icel. E. P. S. N.: King Oscar Land, Goosefjord (39). - - On stone. 



Lecidea albocaerulesce)is(WvLF.) SCHAER. - TH. FR. Scand. p. 508. 

 Greenl., Spitsb.,, Icel. --On stone. 



Lecidea alpestris SMRFT. - TH. FR. Scand. p. 536. Am., Greenl., 

 Spitsb., Icel, --Over earth. 



