226 



Explanation of Plates. 



PLATE C. 



(All Figures nat. size.} 



PUCCINIA BROMINA ON SOFT BROME (Bromus mollis). 



Fig. 



11. Uredosori on under surface of leaf. 



12. Teleutosori on under surface. 



13. Teleutosori on stem. 



PUCCINIA MAYDIS ON MAIZE (Zea mays). 



14. Uredosori on under surface of leaf. 



15. Teleutosori on young stem. 



PUCCINIA THUEMENI ON CELERY (Apium graveolens), 



16. Uredosori on upper surface of leaf. 



17. Uredosori on under surface. 



