40 JOURNAL OF THE 



genus, since it differs too widely from Sporoschisma or Dcn- 

 dryphhnn to be placed in those genera. It might with equal 

 propriety be placed as a new genus among the phragmos- 

 porous division of the Family MucedinccF (p. i88), near 

 Ra7nular2a or Cercosporella^ the conidiophores being promi- 

 nent and quite distinct from the conidia. With the excep- 

 tion of this last character it agrees well with Septocylin- 

 driiim. Here we encounter one of the difficulties of the arti- 

 ficial system of classification which exists to a great extent 

 in the arrangement of some of the HypJiomycctes^ where 

 such genera as Rauiularia and CcrcosporcUa structuralh' 

 very closely related to Cercospora are made to do duty in an 

 entirely different family. If we consider the variation 

 allowed, and justly so I think, in tlie genus Ramularia^ 

 where the conidia are either single or catenulate, this 

 species, in all other respects a true Cercospora^ is properly 

 located in that genus. This variation between catenulate 

 or not catenulate conidia exists in this one species. 



The species enumerated and described below have been 

 collected in Alabama during the last two years, mostly in 

 the vicinity of Auburn. For a short time during the sum- 

 mer of 1891, Mr. C. L. Newman was engaged in my labor- 

 atory and some of the collections were made by him. I 

 have been greatly aided in the work of collecting material, 

 preparation of notes and determination of host plants by 

 my assistant, Mr, B. M. Duggar. For the determination 

 of some of the more troublesome hosts I am indebted to 

 Dr. Geo. Vasey, Botanist to the Department of Agriculture 

 at Washington, and to Professor S. M. Tracy, Director 

 of the Miss. Agr. Exp. Station. 



Of the seventy-nine species enumerated twenty-eight 

 are here described as new and three varieties are added. 

 One European species {C. cerasella Sacc.) and one South 

 American (C BoUeana (Thiun) Speg.) are here described 

 for the first time, I believe, in the United States. The lat- 



