118 
OHIO BIOLOGICAL SURVEY 
EXPLANATION OF PLATE VI. 
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. 
1-10. Pleurage anserina. 1. Perithecium with spores escaping. 2. Apical hairs. 
3. Ascus and paraphyses in outline X 306. 4, 5. Young asci in outline. 
6. Ascus almost mature. 7. Mature ascus. 8. Ascus apex showing cap 
breaking off. 9. Young spore showing primary appendage with septa. 
10. Peculiar mature spore, not a common type. 
I 
