377 



brotis, black, 200-250 ja cliam., with a short, thick, nipple-like ostiolum. 

 Asci clavate-cylindrical, 75-80x16-18 fi, with abundant paraphyses. 

 Sporidia crowded-biseriate, overlapping each other, oblong-fusoid, sub- 

 obtuse, 6-septate, and not at all or finally slightly constricted at the 

 septa, about 22 x 7 /a, straight or nearly so. 



On dead culms of Sporobolus depauperatus, Montana (Anderson). 



Differs from L. culmifraga in its more scattered mode of growth 

 and quite constantly only 6-septate sporidia, and from L. culmicola in 

 its superficial growth and broader sporidia without any protuberant 

 cell. 



L. scapophila, (Pk.) 



Sphceria scapophila, Pk. 30th Rep. p. 66. 

 Leptosphceria scapophila, Sacc. Syll. 3007. 

 Heptameria scapophila, Cke. Syn. 4811. 



Perithecia minute, subglobose, scattered, covered by the epider- 

 mis which is ruptured by the minute, perforated ostiola. Asci cylin- 

 drical. Sporidia crowded or biseriate, subcylindrical, yellowish, 25- 

 30 ji long, 7-septate, one apical and three basal cells longer than the 

 others. 



On dead scapes of Sarracenia purpurea, Adirondack Mts., N. Y. 

 (Peck), Minnesota (McMillan). 



L. Beaumontii, (B. & C.) 



Sphceria Beaumontii, B. & C. Grev. IV, p. 145. 

 Leptosphceria Beaumontii, Sacc. Syll. 3179. 

 Heptameria Beaumontii, Cke. Syn. 4973. 



Forming little short, black lines, bursting through the cuticle. 

 Asci elongated, clavate. Sporidia linear, sometimes oblique, with 

 about 9 septa and a nucleus in each joint, 50 /j. long. 



On stalks of some grass, Alabama. 



L. ceratispora, (B. & C.) 



Sphceria ceratispora, B. & C. Grev. IV. p. 150. 

 Leptosphceria ceratispora, Sacc. Syll. 3178. 

 Heptameria ceratispora, Cke. Syn. 4972. 



Perithecia gregarious, conical. Sporidia long, curved, acuminate 

 at both ends, with 12 or more septa, projecting at the septa like the 

 horns of some antelope. 



On some thick, herbaceous stem, possibly Zeu, South Carolina. 



L. interspersa, (Cke.) 



Sphceria inter spersa, Cke. Grev. VI, p. 146. 

 Leptosphceria interspersa, Sacc. Syll. 3134. 



Scattered. Perithecia globose, subprominent, brown, with pap* 



48 



