432 PROCEEDINGS OF THE ACADEMY OF [1895. 



Perithecia erumpent-superficial, densely gregarious, or here and 

 there collected in botryoid clusters connected by an imperfect stroma, 

 i-J mm. diam., with a papilliform or short-cylindrical ostiolum, 

 finally collapsing above and broadly perforated. Sporules oblong- 

 fusoid, 18-30 x 6-7 //., hyaline, continuous, on slender basidia about 

 as long as the sporules. 



Differs from D. Fraxini E. & E., and from D. fraxinea Sacc. 

 and Roum. in its larger perithecia and its differently shaped spor- 

 ules. 



Dothiorella Crataegi E. & E. 



On dead limbs of Crataegus oxyacantha, London, Canada, May, 

 1895. J. Dearness, 1,291 (b). 



Stromata gregarious, erumpent, black; flattened pulvinate 2-I2 

 mm. or more in diameter. Perithecia small, 2-20 in a stroma. 

 Ostiola papilliform. Sporules elliptical, smoky or subolivaceous- 

 hyaline, 18-20 x 10-15//. on stout basidia, but soon deciduous. 

 Fusicoccum quercinum E. & E. 



On dead limbs of Quercus coccinea, var. tinctoria, Newfield, N. J., 

 March, 1895. . 



Stromata numerous, scattered, subcuticular, tuberculo-convex, 

 seated on the surface of the inner bark, erumpent and loosely sur- 

 rounded by the ruptured epidermis, about 1 mm. diam,, white or 

 whitish inside, obscurely multilocular, enclosed in an outer, coriace- 

 ous coat, which is irregularly ruptured above. Sporules fusoid, 

 hyaline, continuous, mostly 2-nucleate, subobtuse, 10-15 x 3-3* //. 

 Associated with Botryosphaeria fuliginosa (M. & N.). 



Diplodia oelastrina E. & E. 



On dead stems of Celastrus scandens, Rockport, Kansas, Jan. 10, 

 1895. Bartholomew, No. 1,646. 



Perithecia buried in the blackened substance of the inner bark 

 small li mm., either singly or in groups, raising and rupturing 

 the epidermis, but not erumpent, though visible, minutely papillose. 

 Sporules variable ; mostly oblong-cylindrical, or clavate- oblong, 

 uniseptate, but scarcely constricted, dark-brown, almost opake, 18- 

 22 x 7-8 //, others regularly elliptical, lighter brown, smaller 16- 

 20 x 7-8 fi, and deeply constricted. 



The shape and size of the elongated sporules is almost the same 

 as figured by Starback for those of Cytopled propulfans Schw., 



