426 DESCRIPTIONS OP THE PLATES. 



DESCRIPTION OF PLATE XXIV. 



Ceratomyces mirabilis Thaxter. 



Fig. 1. Mature individual, showing spores and asci within the perithecium. A 12. 

 Fig. 2. Younger individual, surface view. A 12. 

 Fig. 3. Young individual. A 12. 



Fig. 4. The same, enlarged to show the cell-structure at the base of the appendage. The young 

 trichogyne is developing at the right. D 12. 



Fig. 5. Young individual, the branched trichogyne arising between the base of the appendage 

 and the developing perithecium. A 12. 



Fig. 6. Individual younger than the last with simple trichogyne, and two conjugating anthe- 

 rczoids (?). A 12. 



Fig. 7. The same, showing the base of the trichogyne and its cell-connections. The perithecium 

 just beginning to develop at the left. Compare the younger condition seen in fig. 4. D 12. 



Fig. 8. Growing tip of perithecium, showing cell-arrangement (cc) canal-cells, (wc) wall-cells. 

 D4. 



Fig. 9. Ascus with ascospores. D 4. 

 Fig. 10. Ascospore. D 4. 



Ceratomyces confusus Thaxter. 

 Figs. 11, 12. Two mature individuals. A 12. 



Ceratomyces camptosporus Thaxter. 



Fig. 13. Pair of ascospores. D 4. 

 Fig. 14. Mature individual. A 12. 



Ceratomyces jiliformis Thaxter. 



Figs. 15, 16. Two mature individuals. A 12. 

 Fig. 17. Ascospore. D 4. 



Ceratomyces restrains Thaxter. 



Fig. 18. Mature individual fully developed. A 12. 

 Fig. 19. Ascus with immature ascospores. D 4. 



Figs. 20-23. Young individuals in various stages of development, Figs. 23, 24 showing exogenous 

 antherozoids. A 12. 



Fig. 24. Portion of fertile branch, showing antherozoids. D 12. 

 Fig. 25. Ascospore. D 4. 



Ceratomyces rostratus var. 



Fig. 26. Mature individual. A 12. 

 Fig. 27. Ascospore. D 4. 



