PLATE 26. 



Cucurbitarieae. 



Fig. 1. Oucurbitaria Praxini, E. & E. natural size, on dead ash 

 limb. 



" 2. Portion of same somewhat enlarged. 



3. Sectional view through the center of a cluster of perithe- 



cia. 



4. An ascus. 



" 5. A sporidium. 



6. Gibbera Vaccinii, (Sow.) natural size, on Vaccinium twig, 



" 7. A cluster of perithecia somewhat enlarged. 



" 8. An ascus. 



" 9. A sporidium. ^ 



" 10. Otthia hypoxyloides, E. & E. natural size on dead wood. 



" 11. A cluster of perithecia enlarged. 



" 12. An ascus. 



" 13. A sporidium. 



14. Nitschkia cupularis, (Pers.) natural size on dead limb of 

 horse chestnut. 



" 15. A cluster of perithecia somewhat enlarged. 

 " 16. An ascus. 

 " 17. Two sporidia. 



