Davis—-A Provisional List of Parasitic Fungi. 859 
Zanthoxylum americanum 
Celastrus scandens 
Acer Saccharum 
Cornus stolonifera 
Fraxinus pennsylvanica 
DIMEROSPORIUM COLLINSII (Schw.) Thuem. 
On Amelanchier $pp. indet. 
DIMEROSPORIUM CONGLOBATUM (B. & C.) Ell. & Evht. 
On Arctostaphylos Uvar-ursi 
PARODIELLA PERISPORIODES (B. & C.) Speg. 
On Desmodium grandiflorum 
SPHAERIACEAE 
GNOMONIELLA CORYLI (Batsch) Sacc. 
On Corylus americana 
rostrata 
GNOMONIELLA FIMBRIATA (Pers.) Sacc. 
On Carpinus carolirtiana 
PHYSALOSPORA AMBROSIAE Ell. & Evht. 
On Ambrosia trifida 
artemisMfolia 
CRYPTOSPORELLA ANOMALA (Pk.) Sacc. 
On Corylus americana 
SPHAERELLA ZIZANIAE (Schw.) Ellis 
On Leersia oryzoides 
SPHAERELLA FRAGARIAE (Tul.) Sacc. 
On Fragaria virginiana 
vesca 
VENTURIA PULCHELLA 
On Chamaedaphne calyculata 
VENTURIA DICKIEI (B. & Br.) Ces. & De Not. 
On Linnaea borealis 
