128 NORTH AMERICAN SORDARIACEAE 
PLATE 7 
. Pleurage curvula. 1. Perithecium cultivated on dead stems of Sa/sola Kali 
7 ragus gehen Aberdeen, S. D 2. Perithecium cultivated on cow 7 from New York 
3. Apex of no. 2, 230. 4. Hairs of no. کر و3‎ 315. 5. Ascus. 6. Apical 
and lateral views of پوس‎ The gelatinous appendage attached to ge side of the pri- 
mary one is seldom 
7-10. مو‎ minuta. 7. Perithecium. 8. Ascus. 9. Apical view of a spore. 
10. Side view of a SE e. The gelatinous appendages attached near the base of the 
spore are seldom s 
11-13. Sien age mphicorns II. Perithecium. 12. Ascus. 13. Spore. 
14-16. Pleurage min 14. Perithecium. 15. Ascus. 16. Spore. 
17-19. Pleuraze ا‎ 17. Perithecium. 18. Ascus. Ig. Spore. 
PLATE 8 
1-5. Pleurage fimiseda. 1. Perithecium. 2. Ascus. 3. Apex of ascus showing 
position of the gelatinous appendage. 4. Spore. 5. A hair from the perithecium, 
< 315. 
6-8. Pleurage Kansensis. 6. Perithecium, 7. Ascus. 8. Spore. 
9-11. Pleurage longicaudata. 9. Perithecium, Io, Ascus. II. Spore. 
PLATE 9 
1-4. Pleurage zygospora. 1. Perithecium. 2. Mature ascus. 3. Spore. 4. 
Young ascus. 
5-8. Pleurage vestita. 5. Perithecium. 6. Ascus. 7. en view of a spore. 
8. Spores as ordinarily seen without secondary امو‎ Se Matur 
10-13. Pieurage decipiens. 10. Perithec II ens. IQ. ue slightly 
under maturity. 13. Spore slightly beyond eg? 
PLATE 0 
-6. Pleurage curvicolla. 1, Perithecium. 2. Mature ascus. 3. Young ascus. 
4. Spore. 5. Spore, apical view . Spores in different stages of development. 
7-10. Pleurage Stret, ۳ Perithecium. 8. Ascus. 9, Mature spore. The 
nn at the base of the spore are often very difficult to distinguish. 
. Young spore. 
11-13. urage adelusa. II. Perithecium. 12. Ascu 13. Two spores. 
The one with ۳ Be is rather under maturity. The اوت‎ is mature and the 
EE appendages are shown as they appear in the stretching ascus. When the 
ruptured they usually entirely disappear. 
14-18.  PYeurage collapsa. 14. Perithecium. 15. Ascus. 16. Spore with the 
apical gelatinous filament long drawn out. (See d 17. Spore showing ap- 
pendages normal as they appear in the expanding ascu I8. Young spore 
