134 
OHIO BIOLOGICAL SURVEY 
EXPLANATION OF PLATE XIV. 
Note: Where no magnifications are given an enlargement of 79 diameters for perithecia, and 450 diame¬ 
ters for hairs, paraphyses, asci, and spores is to be understood. The illustrations were drawn from a 
magnification double that given here and reduced one-half in the process of reproduction. 
1-4. Pleurage collapsa. 1, 2. Perithecia. 3. Old mature ascus shrunken from 
drying. 4. Old spores. 
5-8. Pleurage pleiospora. 5. Perithecium. 6. Young asci in outline X 79. 7. 
Types of mature spores. 8. Spore showing shriveled primary appendage. 
