279 



drical, sessile, 8-spored, 40x6//. Sporidia biseriate, oblong-clavate. 

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

 hyaline, 8xl| t u. 



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



S. applanata, E. & E. Journ. Mycol. IV, p. 98. 



Scattered, punctiform, flattened, covered by the thin epidermis 

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

 50 x 15 fjL. Sporidia biseriate, oblong-elliptical or pyriform, imiseptate, 

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

 with sporidia continuous (Lcestadia) and ])erithecia not flattened, but 

 the material was insufficient for a satisfactory description. 



On dead steins of Clematis ligustieifolia, Montana (Anderson). 



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



Perithecia amphigenous, gregarious, on grayish spots bounded by 

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

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

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

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



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



B. On leaves and cones of coniferous trees. 

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



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

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

 drical, when mature uniseptate, 25-40 p. 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, erurnpent and slightly 

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

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

 (10-12| x4J-5 p., 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. 



Diifers from S. Pinsapo in its longer and differently shaped 

 sporidia. 



