296 GEOLOGY OF OHIO. 



GRAPHIDACEI. 



27. LECANACTIS (Eschw. Koerb., emend.) 



Lecanactis premnea cheoroconia Tuck. [Buellia premnea chloroconia Tuck.) 

 Prospect (Marion Co.) E. E. Bogue. 



28. OPEGRAPHA (Humb.) Ach. Nyl. 



Opegrapha atra MACUiyARis Fr. 



"On trunks," near Cincinnati, Thos. G. Lea (Cat.) 



Opegrapha scripta umitaTa Schaer. 



" On trunks," near Cincinnati, Thos. G. Lea (Cat.) 



Opegrapha scripta serpentaria Schaer. 



"On trunks," near Cincinnati, Thos. G. Lea (Cat.) 



Opegrapha varia (Pers.) Fries. 



On maple, Waynesville (Warren Co.) H. A. Surface; on old elm bark, Georges- 

 ville (Franklin Co.) W. C. Werner. 



Opegrapha varia pueicaris Fr. 



" On trunks," near Cincinnati, Thos. G. Lea (Cat.) 



Opegrapha vuegata (Ach.) Nyl. 

 Dayton, Miss H. J. Biddlecome. 



29. GRAPHIS Ach. Nyl. 



Graphis scripta Ach. 



On trunks, very common. 



30. ARTHONIA Ach. Nyl. 



Arthonia astroides Ach. 



Champaign Co., Mrs. E.J. Spence, Miss H. J. Biddlecome; Franklin Co., Win. 

 C. Werner. 



Arthonia dispersa Nyl. 



Springfield, Mrs. E. J. Spence. 



Arthonia eecideelea Nyl. 



Springfield, Mrs. E. J. Spence ; on Hone}' Locust, Columbus, W. A. Kellermau. 



Arthonia polymorpha Tuck. [Opegrapha polymorpha Tuck.) 



"On trunks," near Cincinnati, Thos. G. Lea (Cat); on maple, Madison Co. 

 Win. C. Werner. 



