122 
OHIO BIOLOGICAL SURVEY 
EXPLANATION OF PLATE VIII. 
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 amphicornis. 1. Perithecium showing apparent thickness of the 
wall and the spore area. 2. A young spore. 3. A mature spore. 4. An old spore. 
5-9. Pleurage hyalopilosa. 5, 6. Perithecia. 7. Rhizoids. 8. Ascus X 79. 9. 
Outline of upper portion of two asci. 
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