Fig. 8. — Ckroniocrea gelaiinosa. Diagrammatic vertical section 

 of stroma. 



Fig. 9. — Chromocrea gelaiinosa. Portion of ascus. 



Fig. 10. — Chromocrea gelaiinosa. Spore. 



Fig. 11. — Volutina sp. Sporodochiiim, much enlarged. 



Fig. 12. — Volutina sp. Conidia. 



Fig. 13. — Volutina sp. Portion of seta. 



Fig. 14. — Gihherella puUcaris. Ascus. 



Fig. 15. ^Gibherella pulicaris. Spores. 



Fig. 16. — Neciria flavociliata. Perithecium. 



Fig. 17. — Neciria flavociliata. Portion of seta. 



Fig. IS. — Xectria flavocilata. Ascus and spores. 



Fig. 19. — Teiracoccosporis sacchari. Fertile hypha. 



Fig. 20. — Tetracoccosporis sacchari. Conidium. 



Fig. 21. — Neciria laurentiana. Habit sketch of perithecia. 



Fig. 22. — Neciria laurentiana. Ascus. 



Fig. 23. — Neciria laurentiana. Spore. 



Fig. 24. — Valsaria suMropica. Ascus. 



Fig, 25. — Valsaria siibiropica. Spore. 



Fig. 26. — Valsaria subiropica. Diagrammatic vertical section, 

 showing perithecia. 



plat;e XXVIII. 



Fig. 1. — Cytospora sacchari. Diagrammatic vertical sections of 

 stromata. 



Fig. 2. — Cytospora sacchari. Conidium. 



Fig. 3. — Cytospora sacchari. Diagrammatic cross-section of 

 stroma. 



Fig. 4. — Cytospora sacchari. Conidiophore. 



Fig. 5. — Melanconium saccharimim. Conidia. 



Fig. 6. — Vermicnlaria graminicola. Habit sketch. 



Fig. 7. — Vermicularia gramimcola. Conidium. 



Fig. 8. — Vermicularia graminicola. Pycnidium. 



Fig. 9. — Colletotrichum falcaium. Conidium. 



Fig. 10. — Collet otrichum C. Conidium. 



Fig. 11. — Colletotrichum C. Condia, setae, eonidiophores. 



Fig. 12. — Colletotrichum C. Setae. 



Fig. 13. — Colletotrichum falcaium. Acervulus. 



Fig. 14, 16, 17. — Colletotrichum falcaium. Conidia and eonidio- 

 phores, showing variation in conidia. 



Fig. 15. — Collctofrichum A. Conidia and conidiophore. 



Fig. 18, 19, 20. — Collet otrichum. B. Conidia and eonidiophores. 



249 



