PLATE 18. 



Sordarieae. 



Fig. 1. Podospora lutea, E. & E. natural size on decaying bark. 



2. The same somewhat magnified. 



3. Sectional view of a perithecium highly magnified. 



4. An ascus. 



5. Four sporidia, A, B, C and D, in different stages of devel- 



opment, C and D mature. 



6. Spororniia minima, Awd. somewhat magnified, on goat's 



dung. 



7. A perithecium highly magnified and broken open, showing 



the asci within. 



8. A cluster of asci, middle one mature. 



9. Two sporidia. 



Note. Figures on this plate not drawn to any scale. 



