CATALOGUE OF PLANTS. 507 



Sub-Class 2.-ASCOMYCETES. 



COHORT I.-GYMIMOASCE>E. 



EXOASCE^E. 



*TAPHRINA, Tul. 

 T. Pruni, Fckl. 



On plums. 

 T. deformans (Berk.), Tul. 



On peach leaves. 

 T. purpurascens, Robinson. 



Leaves of Rhus copallina. 

 T. Potentillse (Farlow), Johanson. 



Leaves of Potentilla Canadensis. 

 T. aurea (Pers.), Fr. 



Leaves of Populus tremuloides. 

 T. coerulescens (Mont. & Desm.), Tul. 



Leaves of Quercus coccinea and Q. alba. 

 T. alnitorqua, Tul. 



On alder catkins. Morris : Parsippany Trelease. 



COHORT II.-PYRENOMYCETES. 



PEEISPOEIACE^E. 



Series l.-ERYSIPHE^. 



SPH^JROTHECA, Lev. 

 S. Castagnei, Lev. 



On living leaves of Rosacese, Cornpositse, etc. 

 S. Mors-uvsB (Schw.), B. &.C. 

 On gooseberry leaves. 



* Ascomyces in Preliminary Catalogue. 



