Davis — Parasitic Fungi in Wisconsin — III. 269 



Cercospfira ageratoides Ell. & Evht. On Eupatorium urticae- 

 folium. Galesville. In this collection the tufts are scattered 

 over indefinite, but slightly discolored, spots. 



Cercospora grindeliae Ell. & Evht. On Grindelia squarrosa. 

 St. Croix Falls. 



Cercospora absinthii (Pk.) Sacc. I am using this name to re- 

 cord the occurrence of a Dematiaceous fungus on leaves of Arte- 

 misia ludoviciana at St. Croix Falls regarding which the follow- 

 ing notes were made: conidiophores amphigenous, scattered or 

 in tufts of 2-6, more or less flexuous, pluriseptate, brown or 

 olivaceous, 90-160 x 4-7,u ; conidia apical, obclavate to obclavate- 

 cylindrical, fuligineous tinted, developing about 4 septa, 30-50 x 

 4-6/x. The affected leaves show at first brown spots which be- 

 come confluent into brown areas. The scattered distribution of 

 the conidiophores and the wooliness of the leaves make this quite 

 inconspicuous. 



Urpmyces astragali (Opiz) Sacc. I am using this name for 

 the purpose of recording the occurrence of uredinia on Astraga- 

 lus canadensis at St. Croix Falls. That this American rust is 

 conspeeific with the European one having its aecia on Euphorbia 

 Cyparissias is questionable. The Sydows in Monographia Ure- 

 dinearum state that it is not while Arthur in North American 

 Flora refers it to that species under the synonym Nigredo pustida 

 (Schroet.) Arth. (Uromyces pustulatus Schroet.) together with 

 the Uredo on Oxytropis that has been known as TJredo oxytrop- 

 idis (Pk.) De Toni. The statement of the Sydows that the ure- 

 dospores on Astragalus in North America have 6-8 germ pores 

 is not borne out by this material in which the pores are 3-4. 



Aecidium lupini Pk. On Lupinus perennis. Millston. I am 

 indebted to Dr. J. C. Arthur for the determination. In the 4th 

 supplementary list mention was made of the occurrence of Tu- 

 berculina persicina (Ditm.) Sacc. on Lupinus perennis as evi- 

 dence that the host bears an Aecidium in Wisconsin which how- 

 ever was not collected until 1914. 



Aecidium liatridis Ell. & And. On Liatris scariosa. Solon 

 Springs. 



University of Wisconsin Herbarium, Madison, Wisconsin, 

 April, 1915. 



