PLATE 30. 



Massarieae. 



Fig. 1. Massariovalsa sndans, (B. & C.) showing the perithecia 

 in vertical section somewhat enlarged. ' 



" 2. Horizontal section of perithecia and stroma. 



3. An ascus. 



4. A sporidium. 



5. Pleoniassaria rhodostoma, (A. & S.), a sporidium. 



6. Massariella bnfonia, (B. & Br.) on white oak bark, show- 

 ing vertical section of perithecia somewhat enlarged. 



7. An ascus. 



8. A sporidium. 



