PLATE 19. 



I/asiospbaerieae. 



Fig. 1. Acanthostigma decastylura, (Cke.) slightly magnified, on 

 bark of rotten magnolia. 



" 2. Section of a perithecium more highly magnified. 



" 3. An ascus. 



" 4. A sporidium. 



" 5. Lasiosphaeria stupea, E. & B. natural size on wood of 

 Tsuga Pattoniana, Mt. Paddo, Wash. 



" 6. Three perithecia moderately enlarged. 



" 7. Section of a perithecium highly magnified. 



8. An ascus. 



" 9. A sporidium. 



" 10. A sporidium of L. hispida, (Tode.). 



" 11. Chaetosphaeria pannicola, B. & C. on decaying bark, 

 natural size. 



" 12 A perithecium somewhat enlarged. 



" 13, An ascus. 



" 14. A sporidium. 



" 15. Herpotrichia Rhenana, Fckl. on culm of some grass. 



" 16. A perithecium somewhat enlarged. 



" 17. A sporidium. 



■' 18. Sporidium of H. pinetorum, (Fckl. 15, 16, 17 and 18 

 from Winter's Pilze). 



" 19. Trichosphaeria pilosa, (Pers.) two asci. 



" 20, Two sporidia, (19 and 20 from Winter's Pilze.) 



