98 Wisconsin Academy of Sciences, Arts, and Letters. 



Exoascus coendescens (Mont. & Desm.) Tul. On Quercus 

 coccinea. Richland Center. (R. A. Harper & G. M. Reed.) 



Taphr'niti virgmica Seym. & Sadeb. On Ostrya virginiana. 

 Potosi. 



I am indebted to Mr. H. G. MacMillan of the Wisconsin Ag- 

 ricultural Experiment Station for identification of specimens in 

 this group. 



Stagonospora intermixta (Cke.) Sacc. To this species I have 

 referred specimens of which the following notes were made. On 

 elongated light brown dead areas which soon spread over the 

 whole leaf; pycnidia epiphyllous, scattered, dark brown, glob- 

 ose or depressed-globose, 60-100/x in diameter; sporules at first 

 hyaline and cylindrical becoming acute at one end with a cen- 

 tral row of small guttulae, finally septate and tinted, 26-52x3-4/x. 

 On Phalaris arundinacea. Devils Lake, Wisconsin, August 5th, 

 1913. The pycnidial wall is usually thin at the base while the 

 outer portion is thick and blackened. 



Septoria agrimoniae-eupatorii Bomm. & Rouss. On Agri- 

 monia gryposepala. Potosi and Glen Haven. 



Septoria cacaliae Ell. & Kell. On Cacalia atriplicifolia. Lake 

 Mills. Oct, 26, 1901. 



Septoria silpJiii Ell. & Evht. On Heliopsis scabra. Madison. 

 Sporules 26-36 x 1/x. This species was described as having 

 sporules 35-50 x lfi, but in specimens on Silphium perfoliatum 

 collected at Madison they are but 26-36 x 1/a. The spots tend to 

 become white and arid with age. 



Entomosporium maculatum Lev. var. cydoniae Sacc. On 

 Pyrus Aucuparia. Devils Lake. Sporules 20(16-23) x 8(6-10)/*. 



Gloeosporium septorioides Sacc. On Quercus rubra. Devils 

 Lake. Tn these specimens the sporules have a narrow median di- 

 vision of the cytoplasm which is sometimes apparent without 

 staining. 



l e>' 



Gloeosporium robergei Desm. On Ostrya virginiana. Somers, 

 South Milwaukee and Devils Lake. In all the specimens which 

 I have collected on this host the cuticle on the upper surface of 

 the spots is rugose forming white dendritic lines. It is labeled 

 var. dendriticum in our herbaria. 



