268 



often slightly narrowed a hove. 35-40 tt long. Sporidia crowded. 

 oblong-ovate, uniseptate, colorless, 10-12 x 4-5 //, divided by the sep- 

 nini into t\vo very unn|ual parts, the smaller part J-J the length of 

 the larger. 



On fallen leaves of Frastiuts Amrficuna, Helderberg Mts., 

 New York. 



Whether this is really specifically distinct from S. effigurata, 

 Schw., is doubtful, bnt we have no authentic specc. of this latter 

 species. Specimens of S. fraxinea, Pk., in our Herb, certainly agn-c 

 well with Schweinit// description of his$. efficjumtu . 



S. efiigurata, (Schw.) 



Sphteria cffigurata, Schw. Syu. N. Am. 1790. 

 Sph&rella effigurata, Cke. Journ. Bot. 1883. 



Spots widely effused, dark cinereous, determinate, often occupy- 

 ing the entire lower surface of the leaf, and appearing as if bounded 

 by a black line, on account of the perithecia being more crowded 

 around the margin. Perithecia very numerous, minute, crowded on 



d; v 



the spots, siibinnate. subconvex, black, much crowded, so as to form, 

 as it vrere, a black, cinereous crust. Asci clavate. Sporidia elliptical, 

 mriseptate, scarcely constricted, hyaline, 15x4 u. 



it/ * * 



On leaves of Fraxinus acuminata, Bethlehem, Pa. Sec. Schw. 

 not found on any other species of ash. 



S. iraxinicola, (Sehvv.) 



Splicer ia fraxicola, Schw. Syn. N. Am. 1787. 

 Sph&rella fraxinieola, Cooke Journ. Bot. 1885, p. 107. 



Hypophvllous. Perithecia subinnate. 1 slack, at length rimose- 

 dehiscent, subconnate, forming small, black, subconfluent patches. 

 Asci clavate, short, Sporidia irregularly arranged, subelliptical, uni- 

 <eptate, hyaline, lower cell narrower 7|x3 IJL. 



On ash leaves, Pennsylvania (Schweinitz), Georgia (Ravenel). 

 Often sterile. 



S. Fraxini, Niessl, has the same external appearance as this; 

 fhe sporidia, however, are given as 26-28 x 4 /JL, but in the specc. in 

 Linhart's Fungi Hungarici, 162, and Rab- Winter F. Eur. 3255, they 

 are 20-22 x 3 /*, and specc. from France (F. Fan trey) have sporidia 

 only 15-17 x2J-4 //. The asci in all these are 40-60 x 7-9 /j, with 

 the sporidia crowded-biseriate. S. fraxinieola, (Schw.), (sec. Cke.) 

 has sporidia only 7J x 3 ^ and if so, the two can hardly be the same 

 species. 



S. Asiminap, E. & K. (in Herb.) . 



IVrithecia on pale yellowish-white spots 1 cm. diam., scattered. 



