374 



septate, scarcely constricted, pale brown, 22 x 6 /i. 

 On Phormium, California (Harkness). 



-^ L. folliculkta, E. & E. Proc. Phil. Acad. July, 1890, p. 237. 



On pale white, elliptical spots 2-4xl-li mm. - Perithecia bur- 

 ied in the substance of the leaf with theii- apices slightly prominent, 

 few on a spot (1-6), small 60-75 fi diaiii. Asci clavate-cylindrical, 

 50x10-12/^. Sporidia biseriate, oblong or clavate-oblong, 2-septate 

 and slightly constricted at the septa, 12-15 x3 /x, yellowish-brown, 

 ends obtuse. Differs from the other species on Carex in its distinct 

 spots and smaller sporidia. 



On leaves of Carex folliculata, London, Canada (Dearness). 



L. Corallorhizse, Pk. 38th Rep. p. 105. 



Perithecia scattered, subcuticular, 1 1 2-125 /i diam, pierced above, 

 raising the epidermis in a papillifoi'm manner so that the stem is 

 slightly roughened. Asci abundant, oblong-cylindrical, 75-80 x 15 /i, 

 paraphysate. Sporidia biseriate, fusoid, curved, subhyaline, nucleate, 

 then uniseptate. becoming 3-septate and constricted at the middle sep- 

 tum, 24-27x4^5 11. 



On dead stems of Corallorhiza, Caroga, N. Y. (Peck), London, 

 Canada (Dearness). 



The diagnosis is drawn from the Canada specimens, which were 

 not fully mature, but there seems no doubt that they represent the 

 species described by Peck. 



** Sporidia b-septate. 



L. incarcerata, (B. & C.) 



Sphceria incarcerata, B. & C. Grev. IV, p. 152. 

 Leptosphcerm incarcerata, Sacc. Syll. 3174. 

 Heptafneria incarcerata, Cke. Syii. 4968. 



Perithecia under a little clouded speck of the cuticle opening by 

 a, little longitudinal fissure. Sporidia torulose, straight, 5-septate, 

 50 n long. 



On Spartina, South Carolina. 



This cannot differ much from L. alhopunctata (West). 



L. Straminis, Cke. & Hark. Grev. XIV, p. 10. 



Culmicolous. Perithecia scattered or subgregarious on dark-col- 

 ored, effused spots, erumpent, black, convex, perforated. ' Asci cylin- 

 dric-clavate, 8-spored. Sporidia lanceolate, 5-septate, slightly con^ 



