Abstract
The following new spp. of fungi parasitic on plants are described: Mycosphaerella calamagrostis on Calamagrostis canadensis, Phyllosticta coreopsidis on. Coreopsis palmata, Septoria rectae on Potentilla recta, S. grindeliicola on Grindelia squarrosa, Cercospora tertia on. Aster ptarmicoides, C. quarta on Aster umbellatus, and C. partheniphila on Parthenium integrijolium. Lists are given of other spp. not previously reported as occurring in Wisconsin, as well as lists of new hosts for Wisconsin.

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