83 



12. Rhtsotheca viTicoLA (B. & C.) G. W. Wilson. 



On litis aestavilis Michx., Tippecanoe, 6:1894 {Arthur), Her- 

 barium Arthur; Lake, 7:1894 (Arthur). Herbarium Arthur. 



On Vitis cordifolia Michx., Johnson, 1893 :32 : — Hamilton, Putnam. 

 7:1907; Tippecanoe, 9:1905. 



On Vitis labrusca L. (including Vitis sp. cult, of Underwood), 

 Crawford, Johnson. Montgomery. Putnam, 1893 :32 : — Hamil- 

 ton, 7:1907; Madison, 8:1907. 



13. Beemia lactucae Kegel. 



On Lactuca canadensis L.. Hamilton, Putnam, 7 :1907. 

 On Lactuca sativa L., In Greenhouses, Tippecanoe, 3 :1903, {Ar- 

 thur). Herbarium Arthur. 



14. Pebonospora alta Fuckel. 



On Plantago major L., Johnson, Putnam, 1893 :32 : — Hamilton, 

 8 :1907. 



15. Peronospoea corydalis de Bary. 



On Bicucula canadensis (Goldie) Millsp. {Dicentra canadensis 

 DC), Putnam, 1893 :32 :— Tippecanoe, 5:1906. 



On Bicucula cucularia (L.) Millsp. {Dicentra cuclaria DC), 

 Montgomery, 1893 :32. 



16. Peeonospora effusa (Grev.) Rabenh. 



On Chenopodium all)um L. (including Chenopodium sp. of Under- 

 wood), Johnson, Putnam, 1893 :32 :— Hamilton. 8:1902; Tip- 

 pecanoe, 6:1894 {Olive). 



17. Peronospora euphoebiae Fuckel. 



On Eupliorihia hunii.strata Engelm.. Tippecanoe, 6:1902 (Arthur). 



Herbarium Arthur. 

 On Euphorbia maruJata L., Hamilton, 8:1907; Putnam, 7:1907. 



18. Peronospora ficariae Tul. 



On Ranunculus recurvaius Poir (including Ranunculus sp. of Un- 

 derwood), Montgomery. Putnam, 1893:32. 



19. Perokospora floerkeae Kelleruuin. 



On FloerTcea proscerpinacoides Willd., Hamilton, 5:19Ui>. 



20. Peeonospora par.vsitica (Pers.) Fries. 



On Brassica nigra (L.) Koch., Putnam. 8:1907. 

 On Raphanus sativus L., Hamilton, 7 :1907. 



On Sophia pinnata (Walt.) Britton {Sisymbrium canescens Nutt.) 

 Tippecanoe, 5 :1905. 



