864 Wisconsin Academy of Sciences, Arts, and Letters. 



RHYTISMA ANDROMEDAE (Pers.) Fr. 

 On Andromeda glaucophylla 



RHYTISMA SOLIDAGINIS Schw. 

 On Sulidago spp. rarii 



RHYTISMA ASTERIS Schw. 



On Aster spp. va 



STICTIDACEAE 



KEITHIA THUJ1NA E. J. Durand 

 On Thuya occidentqlis 



KXOASCACEAE 



TAPHRINA JOIIANSONII Sadeb. 

 On fruit of Populus tremuloides 



TAPHRINA COERULESCENS (Desm. & Mont.) Tul. 

 On Quercus rubra 

 cot ' inea 



TAPHRINA POTENTILLAE (Farl.) Johans. 

 On Potentilla arguta 



EXOASCUS ALNI-IXCANAE Kuehn 

 On Alnus incana 



EXOASCUS CERASI Fckl. 

 On Prunus mrginiana 



EXOASCUS PRUNI Fckl. 

 On fruit of Prunus 



EXOASCUS DEFORMANS (Berk.) Fckl. 

 On Prunus Persica (cult) 



LABOULBENIACEAE 



LABOULBENIA GYRINIDARUM Thaxt. 

 On 1 Gyri7ius 



