PLATE 23. 



Amphisphaericne. (Fiprs. ()-i8). 



V\y^. 1. Hei'|M»ti'icliia diflusa. (Si-liw.) nntural sizo. 



" 2. Portion of the saiiio soiiiowhat iiiiifzniliod. 



" 3. Knlargccl section of a pciitliociuiu. 



" 4. An ascns. 



" 5. A sporidiuni. 



" 6. Olilei'ia nij?iil»sa, Fckl. natural sizo. 



" 7. Samo somewhat magnified. 



" 8. An aseus. 



" !). A sporidiuni. 



" 10. Wiiifei'ia rhoiiia. F. A' !*'■ natural size. 



" 11. Portion of the saiiie enlarsred. 



" 12. An ascus. 



" 13. A sporidiuni. 



" 14. Teicliospora Helenas, F. tt H. natural size, on <lea.d liinli 



" 15. Portion of same onlarireil. 



" l(i. Enlarged section of peiitlicciuni. 



" 17. An ascus. 



•• IS. A sporidiuni. 



■■% 



'•ii;i 



