244 



Explanation of Plates. 



PLATE II. 



(All Figures X 250.) 



PUCCINIA. 



Fig. 



if. Section of teleutosorus of Puccinia lolii avenae on oat (Avena sativa] with several 

 unicellular as well as bicellular teleutospores. 



12. Group of teleutospores of P. beckmanniae on Beckmannia erucaeformis. 



13. Section of teleutosorus of P. festucae on Festuca $ratensis. 



14. Section of teleutosorus of P. lolii on Lolium -perenne. 



15. 16. Groups of teleutospores of P. maydis on Zea mays, including one four- 



celled spore. 



17. Teleutospores of P. flavescentis on Sti-pa flavescens. 



18. Section of teleutosorus of P. magnusiana on Phragmites communis. 



19. Five teleutospores of P. te-p-peri on Phragmites communis, showing the extremel] 



Jong pedicels. 



