298 



S. crus-galli, E. & K. Journ. Mycol. Ill, p. 105. 



Perithecia buried in the substance of the leaf and visible on both 

 sides, but more prominent above, evenly scattered or in small groups 

 with scattering perithecia intermediate, globose, 100-115 p diain., 

 with a broad, round opening above. Asci oblong, 50-55 x 10-12 p., 

 without paraphyses. Sporidia crowded, oblong-fusoid, subinequi- 

 lateral, uniseptate and mostly constricted at the septum, hyaline, 

 14-16x4//. This is quite different from Sphcerella Maydis, Pass., 

 which has rather larger perithecia more distinctly grouped, and (sec. 

 specc. in Rab. Fungi Europsei, No. 1851) sporidia fusoid, 16-20 p, 

 long. It is also different from S. Muhlenbergice, E1L, which, by 

 the way, is a good species and quite distinct from either S. gramin- 

 icola, Fckl., which has larger asci and sporidia, or S. pusilla, Awd. 

 S. graminicola, Fckl., (sec. specc. in Rehm's Ascom., 794, and F. Eur. 

 3446) has asci 75x12 p, and sporidia 15-20 x 3|-4 p. 



On withered leaves of Panicum crus-galli, Kansas (Swingle). 



S. Zizaniae, (Schw.) 



Sphceria ZizanicE, Schw. Syn. N. Am. 1750. 

 Sphcerella Zizanice, Cke. Syn. 5673. 

 Exsicc. EH. & Evrht. N. A. F. 2d Ser. 1797. 



Perithecia immersed and quite evenly ' scattered, not seriate. 



Asci oblong-cylindrical, turgid, 45-55 x 10-12 p. Sporidia biseriate, 



clavate-oblong, uniseptate and constricted, hyaline, straight or slightly 



curved, 15-20x5-6 p.. 



On languishing leaves of Zizania aquatica, Delaware (Commons), 

 The specimens of Sphceria Zizaniae, Schw., in Herb. Schw., are 



sterile and poor, but the Delaware specimens appear to be that species. 



E. On cryptogamous plants, &c. 

 S. gallse, E. & E. Bull. Torr. Bot. Club, XI, p. 75. 



Perithecia minute, scattered or 2-3 together, rupturing and 

 loosening the epidermis. Asci oblong-cylindrical, 40-45 x 10 p, ses- 

 sile. Sporidia crowded in 2-3 series, slender-clavate, uniseptate, 

 12-15 x 3 p (at the broad end). 



On galls on branches of Vaccinium corymbosum, and on rose 

 bushes, Newfield, N. J. 



S. indistincta, Pk. 28th Rep. p. 81. 



Perithecia minute, innate, slightly prominent, scattered or sub- 

 gregarious, globose, black. Asci subcylindrical, 35-40 p long. Spc 



