152 THE WRST NIRCHNIA FLORA 



T. CONCOLOR (Dicks.) Tuck. 



On Robiiiia Pscndacacia, alt. 2,000 ft. (Nuttall, 1144). 

 T. CONCOLOR EFFUSA Tuckcrm. 



Summers: near Lowell (Pollard & Maxon, 150). 



EVERNIA Ach. 

 E. FURFURACEA (L.) Mann. 



On rock; on trunks of trees {Sheldon, 2486, 1544, 3861). 



P A R M E L I A C E AE. 



PARMELIA Ach. 



P. PERLATA (Linn.) Ach. 



On Acer rubnim, and on sandstone boulders (Nuttall, 

 848). 

 P. BoRRERi Turn. 



On Oak, alt. 1,850 ft. (Nuttall, 1032). 



P. BORRERI RUDECTA Tuck. 



On Robinia Pseudacacia, Monongalia Co., along Falling 

 Run (Mills paugh, 1531). 

 P. coLPODES (Ach.) Nyl. 



On Oak, alt. 1,850 ft. (Nuttall, 1141). 

 P. OLIVACEA (L.) Ach. 



On Liriodendron log newly felled, Monongalia Co.. Falling 

 Run (Millspaugh, 1343). 



P. CAPERATA (L.) Ach. 



Monongalia Co., on sandstone rocks, and base of Beech, 

 Falling Run { Millspaugh, 1283). 



P. CETRATA Ach. ? 



Sterile, but probably referable to this species. Summers' 

 near Lowell (Pollard & Maxon, 146). 

 P. TiLiACEA (Hoffm.) Elk. 



Summers: near Lowell (Pollard & Maxon, 151). 

 P. piiysoDES (L.) Ach. 



On the bark of various trees (Sheldon, 1532, 3456, 3663, 

 3668) ; on roof of shed, (3056). 

 P. coNSPERSA (Ehrh.) Ach. 



On a rock (Sheldon, 2160). 

 P. 0Li\'ARTA (Ach.) Hue. 



On rock (Sheldon, 3344). 



P. EXASPERATA (Ach.) DcNot. 



On bark of Pruuus serotina (Sheldon, 3735). 

 P. RUDECTA Ach. 



On bark of Red Oak (Sheldon, 3946). 



