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 chalybeiformis (L.) Ach. On fencerails: C 4 G 2 
P 4 S 1 ; on rock: L 1. 
Arthonia punctiformis Ach. On bark (Ash, hickory, ptelea) : 
C 2 E 1. 
Arthonia radiata (Pers.) Ach. On bark (Alder, ash, basswood, 
hickory, maple, sycamore) : C 16 L 3 O 1. 
A. radiata swartziana (Ach.) Willey. On bark: C 1 E 1. 
Arthopyrenia conoidea (Fr.) Fink. On limestone: O 1. 
Arthopyrenia gemmata (Ach.) Mass. On bark (Dogwood, 
sycamore): C 4 S 1. 
Arthopyrenia punctiformis (Pers.) Mass. On bark (Ash, maple) : 
C 8. 
Arthothelium spectabile Mass. On bark (Ash, birch, horse- 
chestnut, maple) : C 43 L 1 O 1 S 3. 
Bacidia fuscorubella (Hoffm.) Am. On bark (Dogwood, elm, 
maple) : C 8 L 1 S 1. 
B. fuscorubella suffusa (Fr.) Fink. On limestone: O 1. 
Bacidia rubella (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. & Rrostlc. On argillaceous slate 
and sandstone: C 4. 
Baeomyces byssoides (L.) Ach. On clayey ground: C 2. 
Bilimbia hypnophila (Ach.) Fr. On bark (Hickory, sycamore, 
willow) and moss covered rock: C18G202P2S2. 
Bilimbia naegelii (Hepp) Zwackh. On bark (Basswood): C 1. 
Bilimbia sphaeroides (Dicks.) Koerb. On old bark (Witch- 
hazel) : C 1 . 
Buellia parasema (Ach.) Koerb. On bark (Alder, ash, beech, 
chestnut, hickory, maple, oak, w. cherry) : C 1 1 E 1 G 1 
L 1 P 2 S 3. 
Calicium parietinum Ach. On bark (Sycamore) : C 3. 
Cetraria ciliaris Ach. On fence rails and dead Tamarack branches : 
C2G2L1P3S2. 
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. 
