REPORT OF THE BOTANIST. 109 



DOTHIDEA DALIBARDJL 71. Sp. 



Spots small, scattered, suborbicular, reddish-brown ; 

 stroma central, uneven, prominent on both surfaces, black ; 

 ostiola obscure ; asci clavate ; spores crowded, simple, sub- 

 • fusiform, nearly colorless, .OOOS'-.OOOG' long. 



Living leaves of Dalibarda 7epens. Forestburgh. Sept. 

 (Plate 1, figs. 7-9). 



DlATRYPE PLATASCA 71. Sp. 



Stroma suborbicular, rather small, erumpent, black ; 

 ostiola long, slender, often slightly curved, cylindrical ; asci 

 oblong or subfusiform, very broad ; spores crowded, color- 

 less, oblong, uniseptate, quadrinucleate, .OOOS'-.OOOe' long. 



Dead birch branches. Adirondack Mts. August. 



The long slender ostiola and very broad asci are charac- 

 teristic features of this species. It seems to be related to D. 

 incarcerata. 



DlATRYPE CORNICULATA ETirTl. 



Dead bark of ash trees. Sandlake. August. 



Valsa impulsa G.&P. 



Erumpent ; stroma suberose, formed from the bark ; 

 perithecia eight to twelve, clustered, globose, black ; ostiola 

 long, smooth, black ; asci cylindrical ; spores fusiform, uni- 

 septate, hyaline, each cell binucleate, .0008' long, .0003' 

 broad. 



Dead branches of mountain ash. Adirondack Mts. 

 August. 



Valsa subclypeata O. & P. 



Perithecia three or four together, forming pustules beneath 

 the elevated black shining epidermis which is at length 

 lacerated, the torn edge becoming whitish ; ostiola conver- 

 gent, just piercing the ruptured epidermis ; asci narrowly 

 fusiform ; spores linear, minute, rounded at the ends, 

 slightly curved, hyaline. 



Dead branches of oak and Rhododendron. Forestburgh. 

 Sept. 



Valsa Peckii Howe. 



Perithecia numerous, crowded together, sunk in the wood ; 

 ostiola subcylindrical, obtuse, crowded, erumpent, black, 



