279 



drical, sessile, 8-spored, 40 x 6 /i. Sporidia biseriate, oblong-clavate, 

 rounded at the ends, two-celled, scarcely constricted at the septum, 

 hyaline, 8xl| /*. 



On fallen petioles of Hobinia and Juylans regia, Newfield, N. J. 



S. applanata, E. & E. Journ. My col. IV, p. 98. 



Scattered, punctiform, flattened, covered by the thin epidermis 

 through which the perithecia are plainly visible. Asci oblong, 40- 

 50 x 15 fi. Sporidia biseriate, oblong-elliptical or pyriform, uniseptate, 

 hyaline, 18-20x6-8 fi. On the same stems was another Sphcerella, 

 with sporidia continuous (Lcestadia) and perithecia not flattened, but 

 the material was insufficient for a satisfactory description. 



On dead stems of Clematis ligusticifolia, Montana (Anderson). 



S. alarum, Ell. & Halst. (in Herb.) 



Perithecia amphigenous, gregarious, on grayish spots bounded by 

 the nerves of the leaf, small (60-70 fi), subglobose, perforated above. 

 Asci fasciculate, aparaphysate, sessile, oblong, subinequilateral, about 

 40x10 a. Sporidia biseriate, fusoid-oblong, slightly curved, sub- 

 obtuse, hyaline, 12-14 x3-3| /i, uniseptate. 



On samarae of seedling maples, New Brunswick, N. J. (Halsted). 



B. On leaves and cones of coniferous trees. 

 S. eonigena, Pk. 33d Rep. p. 34. 



Perithecia minute, erumpent, black. Asci broad, obovate or sub- 

 clavate, somewhat pointed at the apex. Sporidia oblong or subcylin- 

 drical, when mature uniseptate, 25-40 fi long. 



On old cones of arbor-vitce, Helderberg Mts., New York (Peck). 



S. conicola. Sacc. Add to Syll. p. 75. 



Sphcerella conigena, Pk. 38th Rep. p. 104. 



Perithecia small, scattered or gregarious^ erumpent and slightly 

 prominent, black. Asci subcylindrical, 60-90x12 pt. Sporidia crowd- 

 ed, oblong-clavate, uniseptate, constricted at the septum, 8-10 x 2|-3 /*, 

 (10-12J x4J-5 //, Pk.), the cells unequal, the lower one narrower than 

 the subglobose or elliptical upper one. 



On fallen cones of Abies Canadensis, Helderberg Mts., New 

 York. 



Differs from S. Pinsapo in its longer and differently shaped 

 sporidia. 



