1894.] NATUKAL SCIENCES OF PHILADELPHIA. ''^59 



Pyrenochsete papyricola E. & E. 



On old pasteboard lyiug by the roadside, Newlield, N. J., July, 

 1894. 



Perithecia scattered, subglobcse, 1 00-11 0/i diam., clothed with 

 black, bristle-like hairs. Sporules subglobose or subelliptical, 

 hyaline, 3-3^,". in the longer diameter. 

 Piacosphaeria Arctostaphyli E. & E. 



On dead twigs of Arctostaphylos Nevadensin, Mt. Paddo, Wash., 

 alt. 6,000-7,000 ft., July, 1886 (Suksdorf). 



Stromata erunijient-superficial, pulvinate, l-t mm. diam., flattened 

 and mostly depressed iu the center, dotted with piinctiform ostiola, 

 closely embraced by the epidermis, multilocular. Sporules oblong- 

 cylindrical, hyaline, continuous, 5-6 x 2-22//. 



Has the stroma of Dothidea producing only stylospores. 

 Fusicoccum Tilise E. & E. 



On dead limbs of Tilia Americayia, Naaman's Creek, Del., Aug. 

 1894 (A. Commons, No. 2,517). 



Stromata scattered, buried, conic-ovate, 250-350," diam., one- 

 celled, gray inside, raising the epidermis into acute pustules per- 

 forated with a round opening. Sporules oblong-fusoid, hyaline, 

 2-nucleate, 7-10-2^ x 3//. 

 Fusicoccum ilicinum E. & E. 



On dead limbs of Ilex opaea, Nuttallburg, West Va., May, 1894 

 (L. W. Nuttall, No. 496). 



Stromata cortical, convex, about 1 or li mm. diam., multilocular, 

 whitish inside, the tuberculiform apex pierced with a single pore, 

 rupturing the epidermis and slightly raising it. Sporules fusoid, 

 hyaline, nucleate, 15-22 x 2 i -3//. 

 Cytisporella pinicola E. & E. 



On bark of limbs of Abies Enxjelniaiini, N. W. Colo., July, 1894 

 (I'rof C. S. Craudall, No. 6). 



Stromata erurapent-superficial, verruciform, 1-1 i mm. diam., easily 

 deciduous. Perithecia peripherical. Sporules minute, elliptical, 

 hyaline, 3 x lA/', borne on much branched basidia 15-20 x 2//. The 

 habit is that of Dothiorella, but the minute sporules are those of 

 Cytisporella. 

 Cytispora caryigena E. & E. 



On dead limbs of Carya alba, Nuttallburg, West Va., May, 1894 

 (L. W. Nuttall, No. 513). 



