858 Wisconsin Academy of Sciences, Arts, and Letters. 



ERYSIPHE CICHORACEARUM DC. 

 On Parietaria pennsylvanica 



Phlox puniculata 



divaricata 



Drumvwndii 

 Hydrophyllum virgin ianum 

 Lappuia virginiana 

 Verbena urticacfolia 

 Teucrium canadense 

 Scutellaria lateriflora 



galericulata 



parvula 

 Plant ago major 



Rugelii 

 Eupatorium purpureum 



perfoliatum 



urticaefolium 

 Solidago canadensis 

 Aster divaricatus 



drnmmondii 



laetihs 



lateriflorus 



puniceus 



umbellatus 

 Inula Helenium 

 Ambrosia artemisiaefolia 

 Xanthium sp. indet. 

 HeVopsis scabra 

 Helianthus strtimosus 

 Dahlia sp. indet. (cult.) 

 Helenium autumnale 

 Qirsium discolor 



PHYLLACTINIA CORYLEA (Pers.) Karst. 

 On Carya sp. indet. 



Corylus americana 

 Ostrya virginiana 

 Carpinus caroliniana 

 Betula alba papyrifera 

 Alnus incana 

 Fagus grandifolia 

 Quercus sp. indet. 

 Hamamelis virginiana 

 Crataegus sp. indet. 



