406 



DESCRIPTIONS OF THE PLATES. 



DESCRIPTION OF PLATE VI. 



Camptomyces melanopus Thaxter. 



Figs. 1, 2. Mature individuals, posterior and nearly anterior views. D 2. 

 Fig. 3. Young individual with trichogyne and antherozoids. D 4. 



Fig. 4. Young peritheciuin, showing trichogyne with antherozoids in situ, and large central 

 carpogenic cell. D 12. 



Figs. 5, 6. Lateral and anterior views of antheridium. D 12. 



Peyritschiella geminata Thaxter. 



Fig. 7. Mature individual with two terminal perithecia. D 2. 

 Fig. 8. Mature individual with single terminal perithecium. D 2. 

 Fig. 24. Spore. D 4. 



Peyritschiella curvata Thaxter. 



Fig. 9. Mature individual with antheridium at the right. D 2. 

 Fig. 10. Mature individual with antheridium at the left. D 2. 

 Fig. 11. Germinating spore. D 4. 

 Figs. 12-15. Successive stages in development. D 4. 



Fig. 16. Young individual, the antheridium at the right, the immature perithecium terminated 

 by the small trichogyne. D 4. 

 Fig. 17. Spore. D 4. 



Fig. 18. Perithecium seen in section with contained ascus mass. No spores have been dis- 

 charged, and the canal-cells of the tip are not yet destroyed. Leitz oil ^ 2. 



Peyritschiella minima Thaxter. 



Figs. 19, 20. Two mature individuals, the antheridium shown (in 19) at the right. D 2. 

 Fig. 21. nec del. 



Peyritschiella nigrescens Thaxter. 



Figs. 22, 23. Mature specimen seen from both sides, the antheridium at the right in (23). 

 Fig. 24. See sub P. gem inata. 



Dichomyces furciferus Thaxter. 



Fig. 25. Mature individual, posterior view, showing antheridia. D 2. 



Fig. 26. Mature individual, anterior view. D 2. 



Fig. 27. Tip of perithecium, posterior view. D 12. 



Fig. 28. Tip of perithecium, anterior view. D 12. 



Fig. 29. Spore. D 4. 



