PLATE 21. 



Melanommeae. 



Fig. 1. Melanomma occidentale, Ell. natural size on "sage brush." 

 " 2. Fragment of same enlarged. 

 " 3. Sectional view of a perithecium. 



4. An ascus. 

 " 5. Two sporidia. 



" 6. Borabardia fascicnlata, Fr. natural size on rotten wood. 

 " 7. Same enlarged. 



8. Section. of a perithecium more highly magnified. 



9. Three asci. 



'■ 10. Four sporidia, (A) mature, the others in various stages of 

 development. 



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



