JAN 2 2 1910 
The Ohio at ura list, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
library 
New YORK 
botanical 
garden. 
Volume X. JANUARY, 1910. 
No. L 
TABLE OF CONTENTS 
IIambleton— A List of tlie Liclieus of Ohio 41 
Griggs— M onochytrium, a New Genus of the Chvtridialcs, Its Life History and 
Cytology 44 
Detmers— Medicinal Plants of Ohio 55 
Stickney, Schaffner, and Davies— A dditions to the Flora of Cedar Point, III til 
Dickey — M eetings of the Biological Club 63 
A LIST OF THE LICHENS OF OHIO. 
J. C. Hambleton. 
The following list of lichens is made up principally from the 
collection in the State Herbarium at the Ohio State University. 
It, of course, is not complete. No serious collecting has been 
done for many years, and undoubtedly a large number will yet 
be found. This list has been approved by Prof. A. Zahlbruchner, 
of Vienna, and is in accord with his classification in the Engler- 
Prantl Pflanzenfamilien. 
Verrucariaceae. 
Verrucaria rupestris Schrad. 
V. muralis Ach. 
V. nigrescens Pers. 
Dermatocarpaceae. 
Dermatocarpon miniatum (L.) 
Mann. 
Endocarpon miniatum (L.) 
Schaer ) . 
D. aquaticum (Weiss.) A. Zahlbr. 
{Endoca rpon miniatum , 
aquaticum Schaer.) 
D. pusillum (Ach.) A. Zahlbr. 
( Endocarpon pusillum Hedw.) 
Pyrenulaceae. 
Lepthoraphis epidermidis (Ach.) 
Th. Fr. 
( Sagedia oxyspora {Nyl.) Tuck.) 
Pyrenula nitida (Weig.) Ach. 
P. glabrata (Ach.) Mass. 
P. gemmata (Ach.) Naeg. 
Trypetheliaceae. 
Trypethelium virens Tuck. 
Caliciaceae. 
Chaenotheca chrvsocephala (Turn) 
Th. Fr. 
( Calicium chrysoceplialum 
{Turn.) Ach.) 
Stenocvbe byssaca (Fr.) Nyl. 
{Calicium byssaceum Fr.) 
Cypheliaceae. 
Cyphelium tigillare (Pers.) Th. Fr. 
{Acolium tigillare {Ach.) DcNot) 
Arthoniaceae. 
Arthonia dispersa (Schrad.) Nyl. 
A. radiata (Pers.) Th. Fr. 
{Arthonia astroidea Ach.) 
A. punctiformis Ach. 
A. pvrhuliza Nyl. 
A. lecideella Nyl. 
A. polymorpha Tuck. 
Arthothelium spectabile (FI.) Mass. 
{Arthonia spectabile FI.) 
Graphidaceae. 
Opegrapha varia Pers. 
O. vulgata Ach. 
Graphis scripta (L.) Ach. 
