854 
Wisconsin Academy of Sciences, Arts, and Letters. 
PRO TOMYCE TALES 
PROTOMYCES FUSCUS Pk. 
On Hepatica triloba 
acutiloba 
PROTOMYCES ANDINUS Pat. 
On Ambrosia trifida 
art emisiaefolia 
Bidens frondosa 
connata 
cernua 
ASCOMYCETES 
PYREN OMY CE TALES 
PERISPORIACEAE 
PODOSPHAERA OXYACANTHAE (DC.) DBy. 
On Spiraea salicifolia 
tomentosa 
Pyrus coronaria 
Crataegus oxyacantha 
spp. indet. 
Prunus virginiana 
pennsylvanica 
pumila 
ameiiicana 
spp. indet. (cult.) 
PODOSPHAERA BIUNCINATA Cke. & Pk. 
On Hamamelis virginiana 
PODOSPHAERA LEUCOTRICHA (E. & E.) Salm. 
On Pyrus Malus 
SPHAEROTHECA MORS-UVAE (Schw.) B. & C. 
On Ribes cynosbati 
americanum 
