67 



ASCOMYCES RUBROBRUNNEUS, N. sp. 



Spots definite, variable, small and suborbicular or large and 

 irregular, sometimes confluent, usually concave above, convex 

 below, dull reddish-brown above, paler below; asci oblong, trun- 

 cate at the apex, .002 to .003 inch long, .0006 to .0009 broad; spores 

 minute, subelliptical, .00012 to .00016 inch long, .0006 to .0008 

 broad. 



Living leaves of red oak, Quercus rubra. Sandlake. September. 



In some respects this approaches A. ahitarius, from which the 

 color of the spots, larger asci and different shape of the spores will 

 distinguish it. 



ERYSIPHE HORRIDULA, Lev. 



Abundant on corn gromwell, Lithospermum arvense. Port Henry. 

 June. 



Our specimens were too young when collected to show the spore 

 characters, and are to this extent doubtful. 



CAL0SPILS;RIA CILIATULA, Karst. 



Dead trunks and branches of white birch, Betula popiilifolia. 

 Menands. September. 



VALSA THUJ.E, N. sp. 



Pustules scattered, slightly prominent, closely covered by the 

 epidermis; perithecia nestling in the inner bark, subcircinate, five 

 to ten in a pustule; asci oblong-clavate, .0014 to .0016 inch long; 

 spores allantoid, .0004 to .0005 inch long, .00008 to .0001 broad. 



Dead branches of arbor vitae, Thtija occidentalis. Elizabethtown. 

 September. 



VALSA EXUDANS N. sp. 



Perithecia collected in a cortical stroma, thin, crowded, angular, 

 closely covered by the pustulately elevated, irregularly ruptured 

 epidermis, ostiola obscure or concealed beneath the defiled epidermis; 

 asci very slender, cylindrical, .0016 inch long, .00016 broad; spores 

 minute, oblong, straight, colored, .0002 inch long, oozing out and 

 staining the surface of the matrix. 



Dead bark of alders, Alnus incana. Elizabethtown. September. 



This is an anamolous species and does not agree well with the 

 generic characters. The straight, colored and oozing spores are 

 unusual and peculiar features. 



