LIST OF ILLUSTRATIONS. 



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1. Agaric in process of growth . .18 



2. Section of common mushroom ........ 19 



3. Sterile cells, basidia, and cystidia, from Oompkidius . . . .21 



4. Polyporus giganteua (reduced) ........ 23 



5. Hydnwm repandum, (section) 24 



6. Calocera viscom, .......... 25 



7. Tremella mesenterica ......... 25 



8. Basidia and spores of Phallus 28 



9. Basidia and spores of Lycoperdon 30 



10. Threads of Trickia 32 



11. Arcyria incarnata, with threads and spore ..... 33 



12. Diachcea elegans 34 



13. CyatJius vernicosus 34 



14. Cyathus, sporangia and spores . 35 



15. Asterosporium Hoffmanni . . . ' . . . . .36 

 IS. Barren cysts and pseudospores of Lecytkea ..... 37 



17. Coleosporiurri Tussilaginis 37 



18. Melampsora salicina, pseudospores of 37 



19. Oystopui candidus, conidia of . .38 



20. Xenbdochus carbonarius, pseudospore 39 



21 . Phragmidium bulbosum, pseudospores . • . . . .39 



22. Pseudospores of Puccinia 40 



