128 
OHIO BIOLOGICAL SURVEY 
EXPLANATION OF PLATE XI. 
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. 
1-6. Pleurage vestita. 1. Mature ascus showing 2-seriate arrangement of spores 
X 306. 2. Ascus cap showing manner of opening X 306. 3. A mature spore. 
4. Other forms of spores. 5. Germinating spores after 24 hours in water 
X 306. 6. Germinating spores X 306. The two on the left were in water one day 
the one on the right, two days. 
7-9. Pleurage longicaudata. 7. Perithecium. 8. Tip of a young ascus. 9. 
Expanded ascus X 79. 
