PLATE XVII. 



Fig. 1-3. Teleutospores of Puccinia unifuriiiis n. sj). 



Fig. 4-5. Uredospores of Piiccuii uniforttiis. 



Fig. 6. Leaf of Riimex paucifoHus, showing soil. 



Fig. 7-1 1. Teleutospores of Puccini Crandallii n. sp. 



Fig. 12. Coniiliojihores of Microstroina aiiierica)wni)i> n. s]). 



Fig. 13. Conidia of Microstrisna america7wrum. 



Fig. 14. Optical view of Septoria Jaiiiesii n. sj). 



Fig. 15. Spores of Septoria Jamesii. 



