578 



illiform ostiola. Asci clavate-cylindrical. Sporidia biseriate, fusiform, , 

 7-septate, bright brown, at first nucleate. 



On husks of Zea Mays, Gainsville, Fla. 



No measurements are given. 



L. zizanitbcola, (B. & C.) 



Splusria zizaniacola. B. & C. Grev. IV, p. 145. 

 Sphtsria yimosa^ Schw. (Herb.) 

 Leptosphizria zizanitEcoIa, Sacc. Syll. 3175. 

 Hepiameria zizaniixcola, Cke. Syn. 4969. 



Forming little swollen patches, slightly discoloring the cuticle. 

 Asci elliptical, containing four linear, straight or sigmoid, 5-6-septate 

 sporidia 33-50 /i long. 



On Zizania, (Carolina)? 



The perithecia are entirely buried. We have seen no authentic 

 specimens. 



L. culmifraga, (Fr.) 



SphtETia culmifraga, Fr. S. M. II, p. 510. 

 LepiosphcEria culmifraga, Ces. & De Not. Schema, p. 61. 

 Pleospora culmifraga, Fckl. Symb. p. 137. 

 Exsicc. Fckl. F. Rh. 2245— Rehm Asc. 195, 700, 784, 785.— Rab. F. E. 1552. — Lin. Fungi, 

 Hung. 74, 366.— M. March. 2354, 3034. 



Perithecia scattered or seriate, at first covered, afterwards erum- 

 pent through cracks in the epidermis, subcompressed, mostly elliptical, 

 sometimes spherical, with a short-conical ostiolum, black, glabrous or 

 with a few brown, mycelial threads around the base, 300-400 x 200- 

 250 (1. Asci clavate, 8-spored, 80-100 /i long, 12-14 // broad, pai-- 

 aphysate. Sporidia 2-3-seriate above, fusoid-elongated, mostly curved, 

 7-9-septate, the third cell generally a little swollen, slightly constricted 

 at the septa, yellow, 35-46 x 5-7 (x. 



On Panicum, New England (Bierk. in Grev.), on culms of Phleum 

 pratense, New Jersey, on stems of grass. New York (Peck), and on 

 Panicum Curtisii (culms), Louisiana (Langlois). 



C. On cryptogamous plants. 



L. Marcy^nsis, (Pk.) 



Sphceria Afarcyensis, Pk. 31st Rep. p. 51. 

 Lepiosphceria Marcyensis, Sacc. Syll. 3143. 

 Hepiameria Marcyensis, Cke. Syn. 4930. 



Perithecia minute, punctiform, covered by the epidermis, which 

 is ruptured by the distinct, slightly prominent, blunt ostiola. Asci 

 oblong-cylindrical, sessile. Sporidia crowded, subfusiform, blunt, 

 slightly colored, 3-septate, 25-28 x7| ^, the cells generally nucleate. 



