PLATE 41. 



Cucurbitarieae. 



Fig. 1. Montagnella Heliopsidis, (Schw.) natural size, on stem and 

 leaf of Helianthm divaricatus, somewhat enlarged. 



" 2. Same on a piece of the stem, still more enlarged. 



" 3. Vertical section through several perithecia. 



" 4. An ascus. 



" 5. A sporidium, front view. 



" 6. A sporidium, side view. 



" 7. Parodiella grammodes, (Kze.) about natural size, on 

 Desmodiumpaniculatum. 



" 8. Fragment of leaf with enlarged perithecia. 



" 9. Vertical section of a perithecium more highly magnified. 



" 10. An ascus. 



" 11. Front view of a sporidium. 



" 1 2. Ottilia staphylina, E. & E. about natural size, on bark of 

 Staphylea. 



" 13. A cluster of perithecia somewhat magnified. 



" 14. Vertical section through a cluster more highly magnified. 



" 15. An ascus. 



" 16. Four sporiclia. 



N. B. In this and the preceding plates, where not otherwise noted, 

 all asci drawn to a scale of 28 ft to the inch and all enlarged sporidia 

 to a scale of 14 p. to the inch. 



