Davis — A Provisional List of Parasitic Fungi. 859 



Zanthoxylum americanum 

 Celastrus scandens 

 Acer Baccharum 

 Cornus stolonifera 

 Fraxinus pennsylvanica 



DIMEROSPORIUM COLLINSII (Schw.) Thueni. 

 On Amelanchier spp. indet. 



DIMEROSPORIUM CONGLOBATUM (B. & C.) Ell. & Evht. 



On Arctostaphylos Vva-ursi 

 PARODIELLA PERISPORIODES (B. & C.) Speg. 



On Desmodium grandiflorum 



SPHAERIACEAE 



GNOMONIELLA CORYLI (Batsch) Sacc. 

 On Corylus americana 

 rostrata 



GNOMONIELLA FIMBRIATA (Pers.) Sacc. 

 On Carpinus carolin!iana 



PHYSALOSPORA AMBROSIAE Ell. & Evht. 

 On Ambrosia trifida 

 artemisiifolia 



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.) Ce*. & De Not. 

 On Linnaea borealis 



