Davis—Parasitic Fungi of Wisconsin . 751 
which is surrounded by a reddish brown border, 
5—13 m\m in diameter; pycnidia dark brown or 
black, 70—100 microns; sporules 20—33 X 2%— 
3 1/2 microns. Perhaps distinct but it is more 
likely that the differences are due to the thicker 
leaves of this host. 
549. PuccmiA dayi Clint. 
On the upper leaves of Steironema lanceolatum Gray. 
Adams county. Locally abundant. Spores quite 
variable. 
558. Cintractia caricis (Pers.) Magn. 
On Car ex aurea Nutt. Pacine. 
On Carex Pennsylvanica Lam. State Line and Gor¬ 
don. On Carex umbellata Schkuhr. Gordon. 
573. Plasmopara ribicola Schroet. 
On Ribes CynoSbati L. Mellen. This mildew has 
also been observed at two stations on Madeleine 
island in lake Superior on Ribes triste Pall, and 
one of the gooseberries. The fungus appears to 
have a more restricted southward range than have 
some of its hosts. 
586. Cercospora caricina Ell. & Dearn. 
On Carex gracillima Schw. Padisson. 
On Carex cephalmdea Dewey. Kenosha County. 
Pending the collection of more and better ma¬ 
terial I refer here a specimen on Cyperus 
Houghtoni Torr. collected at Gordon. 
595. Cercospora maianthemi Fckl. 
The specimens referred to this species in the 3rd suppl. 
list I now refer to Cercospora subsanguinea E. & 
E. A specimen, somewhat over mature, collected 
in Adams county in July, 1908, however is quite 
different and I have referred it to Euckel’s species 
although the mature hyphae are frequently 
shorter (50 microns) and the conidia longer (80— 
100 microns) than indicated in the description 
in the Sylloge Fungorum. 
