410 



DESCRIPTIONS OF THE PLATES. 



Fig. 24. Young individual, the three lower appendages with their basal cells at the right ; at 

 the left the young perithecium, and between thein the ascogenic cell and trichophoric cell. Leitz 

 oil ^ 2. 



ChitonomyQ.es marginatus Thaxter. 

 Fig. 25. Young individual, showing first divisions. D 4. 



Fig. 26. Young individual in which the terminal cell of the receptacle has just begun to 

 proliferate. D 4. 



Fig. 27. Terminal portion of young individual in which the proliferation is completed without 

 having become blackened. D 12. 



Fig. 28. Asci with ascospores. D 12. 



Chitonomyces affinis Thaxter. 

 Figs. 29, 30. Young individuals. D 4. 



Chitonomyces minor Thaxter. 

 Figs. 31, 32. Young individuals, showing first divisions. D 4. 



