PLATE 34. 



Diatrypeae. 



Fig. 1. Diatrype Hochelagae, E. & E. moderately enlarged, on 

 dead elm. 



2. Vertical section through a stroma, more highly magnified. 



3. An ascus. 



4. Three sporidia. 



5. Diatrype platystoma. (Schw.) somewhat enlarged, on dead 



maple. 



6. Vertical section through a portion of a stroma, more high- 



ly magnified. 



7. Diatrype virescens, (Schw.), on dead wood of Carpinus, 



a single stroma somewhat enlarged. 



8. Vertical section through a rather small stroma of the same 



species. 



9. Diatrypella hysterioides, E. & E. on dead poplar wood, 



somewhat enlarged. 



" 10. Vertical section through a stroma more highly magnified. 



" 11. An ascus. 



" 12. Three sporidia. 



" 13. Anthostoma Ontariense, E. & E. on bark of dead willow, 

 slightly enlarged. 



14. Vertical section through a piece of bark, showing the im- 



bedded perithecia. 



15. An ascus. 



16. Two sporidia. 



