380 PROCEEDrNGS OF THE ACADEMY OF [1894. 



Tufts effused, at lii-st ou irregular areas of the green leaf, partly 

 bounded by the veinlets, the part of the leaf occupied soon becoming 

 brown and dead. Hyphoe densely cespitose, simple, hyaline, mostly 

 continuous, 25-40 x 5//. Couidia cylindrical, hyaline, obtuse at the 

 ends, l-3-3eptate, often constricted at the septa. The tufts of 

 hyphse are of a pale rose color, nearly white and are found on both 

 sides of the leaf 



Cercospora melanochasta E. & E. 



On leaves of Celastrus scandens, Louisville, Kansas, Oct. 1893 

 (E. Bartholomew, No. 1,210). 



Spots amphigenous, slaty black, with the center whitish and the 

 margin shading off into rusty brown, suborbicular, ^-1 cm. diam. 

 Hyphne dark brown, septate, subundulate above, 40-60x3^-4//, 

 forming dense sphseriseform, tobacco-brown tufts on the whitish 

 center of the spots on both sides of the leaf. Conidia clavate- cylin- 

 drical, brown, 3-5-8eptate, 40-70 x 4-5//. The dark part of the 

 spots, especially below is covered with numerous, black, sterile 

 perithecia. 



Cercospora columnare E. & E. 



On dried up leaves of Phaseolus (cult.), Newfield, N. J., Sept. 

 1894. 



Am|)higeuous but mostly hypophyllous. Hyphse erect, fascicu- 

 late, forming a compact bundle or tuft like Isariopsis, 150-230 x 4//, 

 brown, sparingly septate. Conidia oblong-cylindrical, 1-5-septate, 

 not constricted, brownish, mostly a little curved, 40-60 x 5-6//. 



C. Phaseoloruiii Cke. is said to have the hyphge short (" abbre- 

 viatis " ) which can hardly apply to this. 



Cercospora (Enotherse E. & E. 



On leaves of GEnothera hiemm, Nuttallburg, West Va. , Oct. 

 1894 (L. W. Nuttall, No. 599). 



Spots irregular, mostly elongated, grayish-brown, subangular, 3- 

 5 x 2-3 mm. , subconfluent. HyphtTe amphigenous, subhyaline, con- 

 tinuous or faintly 1-2-septate, 15-20 x 3/-, in minute scattered tufts, 

 few in a tuft, spreading, subundulate. Conidia linear or only 

 slightly attenuated above, smoky-hyaline, nucleate and faintly 3-5- 

 or more-septate, 25-80 x 2-2J/'., straight or only slightly curved. 



Cercospora Merrowi E. & E. 



On Isopynmi hiteniatum, Ann Arbor, Mich., Oct. 1893 (Harriet 

 L. Merrow). 



