544 The Ohio Naturalist. [Vol. XII, No. 8, 



herbarium. It is to be hoped, that this list may be helpful to 

 students of lichenology in this state and induce other botanical 

 workers to commence the study of this very interesting branch 

 of natural science. 



List of Lichens : 



Acarospora puscata (Schrad.) Th. Fr. On sandstone: C 2 G 1. 

 Alectoria jubata chalvbeiformis (L.) Ach. On fencerails: C 4 G 2 



P 4 S 1 ; on rock: L 1. 

 Arthonia jjunctiformis Ach. On bark (Ash, hickory, ptelea): 



02 E i. 

 Arthonia radiata (Pers.) Ach. On Ijark (Alder, ash, basswood, 



hickory, maple, sycamore): C IG L 3 O 1. 



A. radiata swartziana (Ach.) Willey. On bark: C 1 E 1. 

 Arthopyrcnia conoidea (Fr.) Fink. On limestone: O 1. 

 Arthopyrenia gemmata (Ach.) Mass. On bark (Dogwood, 

 sycamore) : C 4 S 1 . 



Arthopvrcnia punctiformis (Pers.) Mass. On bark (Ash, maple) : 

 OS. 



Arthothelium spcctabile Mass. On bark (Ash, birch, horse- 

 chestnut, maple): C43L10 1S3. 



Bacidia fuscorubclla (Hoffm.) Am. On bark (Dogwood, elm, 

 maple): C S L 1 S 1. 



B. fuscombella suffusa (Fr.) Fink. On limestone: O 1. 

 Bacidia rubeUa (Hoffm.) Mass. On bark (Ash, elm, maple, 



willow) : C 12. 

 Bacidia Schweinitzii (Tuck.) Fink. On bark (Ash, birch, maple) : 



C 16 G 2 L 1 M 1. 

 Bacidia umbrina (Ach.) Branth. & Rrostk. On argillaceous slate 



and sandstone: C 4. 

 Baeomyccs byssoides (L.) Ach. On clayey ground: C 2. 

 Bilimbia hypnophila (Ach.) Fr. On bark (Hickory, sycamore, 



willow) and moss covered rock: C18G202P2S2. 

 Bilimbia naegehi (Hepp) Zwackh. On bark (Basswood) : C 1. 

 Bilimbia sphacroides (Dicks.) Kocrb. On old bark (Witch- 

 hazel): C 1. 

 BueUia parasema (Ach.) Koerb. On bark (Alder, ash, beech, 



chestnut, hickory, maple, oak, w. cherry): C 11 E 1 G 1 



L 1 P 2 S 3. 

 Cahcium parietinum Ach. On bark (Sycamore) : C 3. 

 Cetraria ciliaris Ach. On fence rails and dead Tamarack 1)ranches : 



C 2 G 2 L 1 P 3 S 2. 

 Cetraria islandica (L.) Ach. On earth: C 1. 



Cetraria lacunosa Ach. On fence rails and old wood: C 2 P 1 S 4. 

 Cladonia bacillaris (Del.) Nyl. On rotten wood: C 1. 

 Cladonia caespiticia (Pers.) Floerke. On old wood: C 4 L 1 M 1. 

 Cladonia coccifera (L.) Willd. Over moss on earth: C 1. 



