140 
OHIO BIOLOGICAL SURVEY 
EXPLANATION OF PLATE XVII. 
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. 
1-3. Sporormia leporina. 1. Ascus with spores escaping. 2. Mature ascus in 
outline. 3. A spore. 
4-7. Sporormia tuberculata. 4. Perithecium. 5. Ascus elongating in water. 6. 
Diagrammatic sketch of an ascus. 7. A spore. 
8-11. Sporormia fimetaria. 8. Perithecium in outline with asci projecting X 450. 
9. Perithecium with ascus projecting X 450. 10. Young asci in outline. 11. 
Mature ascus. 
