120 
OHIO BIOLOGICAL SURVEY 
EXPLANATION OF PLATE VII. 
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. 
1-5. Pleurage conica. 1. Perithecium. 2, 3. Agglutinate hairs of the perithecium. 
4. Mature ascus. 5. Mature spores. 
6-8. Pleurage amphicornis. 6. Perithecium. 7. Hairs. 8. Rhizoid. 
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