Davis — Parasitic Fungi in Wisconsin — 7//. 257 



pluriseptate, 60-100 x 3-4/x. On Bidens connata, Fountain City, 

 August 12, 1914. 



Telia of Vromyces albus CClint.) Diet. & Hoi. on leaves of 

 Vicia americana were collected at Sharon in 1889. I am unable 

 to perceive an arrangement of the verrucosities of the spore walls 

 in rows. 



The rust on Hystrix patula referred to Puccinia apocrypta 

 Ell. & Tracy in the provisional list is probably Puccinia impa- 

 tientis (Schw.) Arth. as I am informed by Dr. Arthur. 



Gymnoconia peckiana (Howe) Trotter is made up of the 

 aecial Caeoma nit ens Schw. and the telial Puccinia peckiana 

 Howe. Kunkel doubts the relationship (Am. Journ. Bot. 

 i:37-45). 



Telia of Melampsoropsis cassandrae (Pk. & G.) Arth. were 

 collected at Solon Springs, June 15th, 1914. 



Additional Hosts. 



Plasmopara australis (Speg.) Swingle. On Echinocystis lob- 

 ata. Galesville. 



Peronospora parasitica (Pers.) Tul. On Cardamine bulbosa. 

 Madison. 



Peronospora trifoliorum D By. On Astragalus canadensis. 

 St. Croix Falls. 



Peronospora chamaecysis Wils. is the species that has been 

 formed to include American forms such as were recorded in the 

 provisional list as P. euphorbiae Fckl. (Mycplogia 6 ; 204). On 

 Euphorbia glyptosperma. Trempealeau. 



Sclerospora graminicola (Sacc.) Schroet. On Setaria glauca. 

 Bridgeport. 



Sphaerotheca humuli (D C.) Burr. On Viola canadensis. 

 Clintonville. Abundant at this station but confined to the sin- 

 gle species of violet. Viola scabriuscula was abundant but en- 

 tirely free from the mildew. 



Erysiphe polygoni DC. On Delphinium (cult.) Poynette. 

 (H. L. Russell?) 



17— S. A. 



