1890.] NATURAL SCIENCES OF PHILADELPHIA. 231 



hyaline, 6-7 x 3-3} //. Differs from the usual type of Sphaerella 

 in its narrow elongated asci. 



Sphaerella spinicola. 



On spines of Rosa rubiginosa, West Chester, Pa., July, 1839. 

 Perithecia scattered or 3-4 together, minute 110-120 //.collapsing, 

 visible through the translucent epidermis as minute black specks, 

 fringed around the base with scanty mycelium. Ostiolum papilli- 

 form. Asci oblong, sessile, about 45 x 12 /j.. (p. sp.). Sporidia bi- 

 seriate, oblong-elliptical, continuous, granular, rounded at the ends, 

 12-15 X 5-6 /... 



Sphaerella ciliata. 



On dead stems of Steironema ciliatum, London, Canada, May, 

 1890. Dearness, 1650. Thickly gregarious. Perithecia subglobose, 

 150 //. diam. covered by the cuticle but not sunk in the matrix, os- 

 tiolum papilliform. Asci clavate-cylindrical 40 x 7 //. Sporidia, 

 biseriate, clavate-oblong, hyaline, 1-septate and constricted 10-12 x 

 3 /'-. 

 Sphaerella angelicae. 



On dead stems oi Angelica atropurpurea, London, Canada, June, 

 1890. Dearness, 1715. Perithecia scattered, growing under the 

 bark and attached to it so that when the bark is peeled, off they 

 come with it, globose, i mm. diam., collapsing below, ostiola papilli- 

 form, barely piercing the cuticle and only slightly raising it. Asci 

 clavate-cylindrical, with abundant paraphyses, 65-70 x 7-9 //. 

 Sporidia biseriate, oblong-elliptical, 2-nucleate, 12-15 x 3^ //., be- 

 coming ovate -oblong and 1-septate. 



Judging from the specimens in F. Eur. and F. G., this is differ- 

 ent from S. rubella, Niessl. 



Sphaerella maclurae. 



On leaves of Machira axirantiaca, Emma, Saline Co., Mo., Aug., 

 1889. Rev. C. H. Demetrio, 251. Spots red-brown with a definite, 

 darker border 3-10 cm. diam. or by confluence more, very brittle, 

 the central part paler and soon falling out. Perithecia innate with 

 their vertices erumpent, small (75 //.). Asci oblong-cylindrical 

 50 X 8-10 //. without paraphyses. Sporidia biseriate, oblong-pyri- 

 form, constricted, slightly curved, 12-14 x 5 //., ends subacute. 

 Sphaerella polifolia. 



On living or partly dead leaves of Andromeda polifolia, London, 

 Canada, Aug., 1889. J. Dearness. Perithecia epiphyllous on gray- 



