DESCRIPTIONS OF THE PLATES. 



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DESCRIPTION OF PLATE XXV. 



Ceratomyces furcatus Thaxter. 



Fig. 1. Young individual with trichogyne. A 12. 



Fig. 2. Mature individual, the perithecium in optical section. A 12. 



Fig. 3. Mature individual, surface view. A 12. * 



Fig. 4. Ascospore. D 4. 



Ceratomyces contortus Thaxter. 



Fig. 5. Mature individual, the perithecium seen in optical section. A 12. 



Fig. 6. Mature individual, surface view. A 12. 



Fig. 7. Abnormal individual, producing two perithecia. A 12. 



Fig. 8. Young individual with trichogyne. A 12. 



Fig. 9. The same, showing cell -connections of trichogyne. D 12. 



Fig. 10. Spore. D 4. 



Ceratomyces humilis Thaxter. 



Figs. 11-13. Mature individuals. A 12. 

 Fig. 14. Spore. D 4. 



Ceratomyces minisculus Thaxter. 



Figs. 15, 16. Mature individuals. A 12. 



Fig. 17. Younger individual with old trichogyne. A 12. 



Fig. 18. Spore. D 4. 



Ceratomyces terrestris Thaxter. 



Figs. 19-21. Mature individuals, showing various degrees of blackening in the receptacle. A 12. 

 Fig. 22. A mature individual, enlarged sectional view. D 4. 

 Fig. 23. Appendage bearing antheridia. D 12. 

 Fig. 24. Spore. D 4. 



