864 Wisconsin Academy of Sciences, Arts, and Letters. 
RHYTISMA ANDROMEDAE (Pers.) Fr. 
On Andromeda glaucophylla 
RHYTISMA SOLIDAGINIS Schw. 
On Balidago spp. varii 
RHYTISMA ASTERIS Schw. 
On Aster spp. varii 
STICTIDACEAE 
KEITHIA THUJ1NA El. J. Durand 
On Thuya occidentals 
EXOASCACEAE 
TAPHRINA JOHANSONII Sadeb. 
On fruit of Populus tremuloides 
TAPHRINA COERULESCENS (Desm. & Mont.) Tul. 
On Quercus rubra 
coccinea 
TAPHRINA POTENTILLAE (Farl.) Johans. 
On Potentilla arguta 
EXOASCUS ALNI-INCANAE Kuehn 
On Alnus incana 
EXOASCUS CERASI Fckl. 
On Prunus nirginiana 
EXOASCUS PRUNI Fckl. 
On fruit of Prunus 
EXOASCUS DEFORMANS (Berk.) Fckl. 
On Prunus Persica (cult) 
l 
LABOULBENIACEAE 
LABOULBENIA GYRINIDARUM Thaxt. 
On ? Gyrinus 
