No. 115.] 77 



PERONOSPORA GANGLIFORMIS, De By. 



Living leaves of Souchus asper. Warsaw. 



PEZICULA ACERICOLA, Pk. 



Variety gregaria Pk. Receptacles small, gregarious. Bark of 

 red maple, Acer rubrum. Karner. September. 



RHYTISMA SALICINTJM, Fr. 



Fallen leaves of Salix Cutleri. Mt. Marcy. June. Fertile 

 specimens. 



