70 



Dead branches of basswood, Tilia Americana. Argusville. July. 



This species approaches D. furjuracea in its pulverulent stroma, 

 but it differs in' its prominent disk, which renders the affected 

 branches rough to the touch, and in its smaller quadrinucleate 

 crowded or biseriate spores. From D. velata it is easily separated 

 by the entire absence of any black circimiscribing line or blackened 

 surface. It evidently belongs to the subgenus Chorostate, but the 

 clusters of perithecia are so numerous and so closely and almost 

 confluently placed that they form an almost continuous stratimi 

 which surrounds the branch and extends long distances under the 

 epidermis. 



MELANCONIELLA DECORAHENSIS, ElUs. 



Dead bark of ' white birch, Betiila populijolia. Gansevoort. 

 September. 



In the typical form the disk is described as "sordid gray." In 

 our specimens, both it and the stroma are yellowish green and 

 pulverulent. On the smaller branches the disk is smaller and the 

 ostiola are less prominent than on the larger ones. When the 

 epidermis is torn away the perithecia adhere to it. The young 

 spores are colorless and subacute at each end. The mature ones 

 are colored, obtuse and constricted at the septum. 



The conidia ooze out and form orbicular black patches one to 

 two lines broad. These are very conspicuous by reason of the con- 

 trast between their color and the white color of the matrix. 



VALSARIA NIESSLII, Sacc. 



Dead bark of white birch, Betula populifolia. Menands. Sep- 

 tember. 



LEPTOSPHiERIA ASPARAGI, N. sp. 



Perithecia broadly conical-, .01 to .014 inch broad, at first covered 

 by the pierced epidermis, then naked, black; asci clavate or cylin- 

 drical, short pedicellate, .003 to .004 inch long, .00045 to .0006 

 broad; spores oblong or subfusiform, crowded, .0008 to .0012 inch 

 long, .0003 broad, at first colorless and triseptate, then slightly 

 colored and five-septate, constricted at the septa. 



Dead stems of asparagus. Menands. October. 



MASSARIA PYRI, Otth. 



Bark of pear and apple trees. Albany. May. 



