267 

 irresnilar patches limited by the veinlets of the leaf. Asci cylindrical 



t, , 



or clavate-cylindrical, 40x6 //. Sporidia biseriate, narrow-elliptical, 

 uniseptate, 8x3-3| /*. 



On leaves of Myrica ccr'/fct'ii. X. Jersey. 



S. mcanescens, (Sclnv.) 



Sphceria iiicanescens, Schw, Syn. N. Am, 1796, 



Spf'cn ella, iiicanescens, Cke. in Journ. Bot. March, 1883, p. 107. 



Spots becoming hoary, broadly effused, indeterminate, appearing 

 as if covered with frost. Perithecia pimctiform. subglobose, very mi- 

 nute, black, often appearing as if truncate or collapsed. Asci cylindri- 

 cal. Sporidia elliptical, uniseptate, In-line, 8x3 IJL. 



On T-iUa Americana. Pennsylvania iSchw.) 



S. populiiolia. Cke. ). <. ]. H>7. 



Exsicc. Rav. F. Am. 689. 



Hypophylloiis. IVrithecia innate-prominent, punctiibrm. globose, 

 black, subconfluent-aggregated, 3-C> together, in numerous, small, black. 

 subangular groiij^. or also scattered. Asci cylindrical. Sporidia sub- 

 lanceolate, uniseptate. hyaline. 16-18 x3|-4 . 



On leaves of fopulus <mg\il<i1a . South Carolina. 



In our copy of Kav. F. Am., the specimen shows no fruit. 



S. orbiciilai-is. Pk. -JSth Rep. p. 81. 



Perithecia minute, innate, covered by the epidermis, which is ai 

 length pierced or ruptured, occupying distinct or subcontinent, brown- 

 ish spots. Asci subcylindrical. Sporidia oblong, nniseptate. colored. 

 10-13 IJL lonu'. 



On the upper surface of fallen poplar leaves. Center and North 

 (ireenbush. X. Y. (Peck). 



The spots on the leaves resemble those of Vtntnriu orbicularis on 

 oak leaves. Sometimes the epidermis peels off revealing the perithe- 

 cia beneath. These are often more numerous near the margin of the 

 spot. 



S. Wistariae. Cke. Grev. VII. p. 54. 



Punctiibrm. scattered. Perithecia semiimmersed, black, very 







small. Asci clavate. Sporidia elliptical, uniseptate. 8x3 u.. 

 On leaves of Wistaria. South Carolina (Ravenel). 



S. fraxinea, Pk. 35th Rej). ]>. 145. 



Perithecia numerous, minut-e (75 IJL). black, amphigenous, gener- 

 ally collected in groups forming suborbicular spots. Asci oblong 



