EXPLANATION OF PLATES 127 
PLATE 3 
1-3. Sordaria er, I. Perithecium. 2, Ascus. 3. Spore. 
4-8. Sordaria discospora. 4. Perithecium. 5. Ascus with uniseriate pay 
6 Ascus with biseriate spores ; Ka 6 are انت‎ the same perithecium. 7-8. Differ- 
ent views of spores. 
. Sordaria leucoplaca. 9. Perithecium on cow dung from Highmore, S. D. 
IO-I2. ہہ‎ on horse dung from New York City. 13. Asci, one of which shows 
the aborting spores. 14. Ascus with slightly larger spores from cud York City. 15. 
hree spores 
16-18, rar ta humana on dog dung, New York City. 16. Perithecium. 17. 
Ascus. 18. Spore. 
19-21, Sordaria fimicola on dead culms of Ziescharis from Aberdeen, S. D. 19 
e 20. Ascus. 2I. Spore. 
. Sordaria humana on pe dung from New York City. 22. Perithecium. 
23. Fais slighily stretched. . Spores. 
25-27. Sor. daria minima. 25. Two perithecia. 26. Ascus, 27. Spore. Ascus 
and spore not fully ure 
28-30. Sege e hyalina 28. Perithecium. 29. Ascus. 30. Spores. 
PLATE 4 
1-3. Pleurage tetraspora. 1. Perithecium. 2. Asc 3. Spor 
4-7. Sordaria bombardioides. 4. Perithecium with Se 0181ھ‎ sub- 
stratum to show extent to which it is sunken. 5. Outline of perithecium after removal 
of outer Géi : Ancus. 34. Spore, 
۰ So ۳ fimicola drawn from specimens on cow dung in Columbia green- 
house. x Perithecium. 9. Ascus. Io. اوت‎ 
11-13. Pleurage erostrata. 11. Peritheciu 12. Áscus. 13. Spore 
14-16. Sordaria humana on human ہت‎ Newfield, N. J. (Ellis). 0 Peri- 
Ascus. 16. 
ھا‎ Sordaria ae 17. Perithecium. 18. Ascus. 19. Spore. 
20-21. Germinating spores of Pleurage curvula. 
PLATE § 
1-3. Pleurage Ellisiana. I. Perithecium. 2. Ascus. 3. Spore. 
4-6. Pleurage anserina. 4. Perithecium. 5. Ascus. 6. $pore. The gelati- 
nous appendages at base of spore are not often present. 
7-9. Pleu nia anomala. 7. Perithecium. 8. Ascus. 9. Spore. 
10-13. Pleurage albicans. 10. Perithecium. II. Ascus. 12. Mature spore. 
13. Young s 
14-20. pud Er arachnoidea. 14. Perithecium. 15. Mature ascus. 16. Your 
ascus. 17. Spo 18. Young spore. I9. Spore showing removal of septum down- 
ward. 20. ie showing a pur in the primary appendage. 
PLATE 6 
1-3. Pleurage taenioides. 1. Perithecium. 2. Ascus. 3. Spore, 
4-6. Pleurage Arizonensis. 4. Perithecium. 5. Ascus. 6. Spore 
7-9. Pleurage multicaudata. 7. Perithecium. 8. Ascus. 9. Spore. 
