ERYSIPHE COMMUNIS (Wallr.) Fr. On Delphinium datum, 

 Cumberland, 1857, (Blake). On Pisium sativum, Orono, 8- 1886, 

 (Harvey). On Clematis virginiana, Bradley, 10-1899, (Ricker). 

 On Ranunculus acris, Orono, 10-1900, (Ricker). 



ERYSIPHE GRAMINIS DC. (Oidiuui monilioides Lk.} On 

 Poa pratensis, \Vestbrook, 7-1900, (Ricker). On Poa prajensis, 

 Orono, 11-1900, (Ricker). 



ERYSIPHE PHLOGIS Schw. On Phlox paniculata, Harrison, 

 9-1859, (Blake). On Phlox paniculata, Westbrook, 8-1900, 

 (Ricker). 



EUROTIUM HERBARIORUM (Wigg.) Lk. On poorly dried 

 plants, Orono, 3-1897, (Harvey). 



MICROSPHAERA DUBYI Lev. On Lonicera tartarica, Orono, 

 10-1900, (Ricker). 



MICROSPHAERA EXTENSA C. & P. On Quercus rubra, Orono, 

 9-1897, (Harvey). 



MTCROSPHAERA FRIESII Lev. . On syringa vulgaris, Orono, 

 9-1897, (Ricker). 



MICROSPTIAEKA PENICILLATA (Wallr.) Lev. On Alnus incana, 

 Orono, 11-1900, (Ricker). 



MICROSPHAERA RUSSELLI Clint. On Oxalis stricta, Orono, 

 10-1900, (Ricker). 



MICROSPHAERA VACCINII C. & P. On Vaccinium corymbo- 

 sum, Jackman, 8-1895, (Harvey). 



PHYLLACTINIA SUFFULTA (Reb.) Sacc. On Celastrus scan- 

 dens, Orono, 9-1892, (F. P. Briggs). Det. Harv. On Cornus 

 stolonifera, Orono, 10-1898, (Ricker). On Corylus rostrata, 

 Orono, 10-1900, (Ricker). 



PODOSPHAERA MINOR Howe. On Spiraea salicifolia, Orono, 

 10-1900, (Ricker). 



PODOSPHAERA OXYACANTH^E (DC.) DeBy. On Prunus vir- 

 giniana, Orono, (Harvey). 



SCORIAS SPONGIOSA (Schw.) Fr. On Alnus incana, Pea Cove. 

 10-1898, (Ricker). 



SPHAEROTIIECA CASTAGNEI Lev. On Bidens cernua, Old- 

 town, 9-1900, (Ricker). 



*SPHAEROTHECA HUMULI (DC.) Burrill. Orono, (Harvey). 



*SPHAEROTHECA MORS-UVAE (Schw.) B. & C. Orono, 

 ( Harvey. ) 



