388 



M. laciistris, (Fckl.) 



SphcEria lacustris, Fckl. Symb. Nachtr. II, p. 22. 

 Metasphceria lacustris, Sacc. Syll. 3470, Cke. Syn. 4466. 

 Exsicc. Fckl. F. Rh. 2436. 



Perithecia gregarious, covered by the epidermis, finally erumpent. 

 globose or somewhat depressed, with the apex somewhat shining and 

 crowned with a small, perforated, papilliform ostiolum, black, 180- 

 210 fi diam. Asci elongated-oblong, sessile, 8-spored, 70-90 x 12-14 fi, 

 with abundant paraphyses. Sporidia bis(3riate, ol)long, at first unisep- 

 tate, then 3-septate, constricted at the septa, rounded at the ends. 

 hyaline, 20-22 x 5 jju 



On Phragmites communis, Manhattan, Kansas (Kellerman). 



The sporidia are somewhat longer than in the original specc. ex- 

 amined by Dr. Winter. 



M. infiiscans, E. & E. (in Herb.) 



Perithecia gregarious, on the inner surface of the sheath, de- 

 pressed-globose, black, \-\ mm. diam., the subcorneal apex raising the 

 epidermis into little pustules which become umbilicate at the apex by 

 the collapsing of the papilliform ostiola. Asci oblong-cylindrical, 

 sessile, paraphysate, 70-80 x 10-12 /i. Sporidia crowded-biseriate, 

 elavate-oblong, 3-septate, but not constricted, yellowish-hyaline, 15- 

 20 x 3J-4J /i. 



On the inner surface of dead, blackened, outer sheaths enclosing 

 the spikes of Andropogon Virginicus, Alabama (Atkinson). 



M. sabalensis, (Cke.) 



Sphczria sabalensis, Cke. Grev. VII, p. 53. 

 Dilophia sabalensis, Sacc. Syll. 4105. 

 Metasphceria sabalensis, Cke. Syn. 4523. 

 Exsicc. Ell. & Evrht. N. A. F. 2d Ser. 1962. 



Perithecia numerous, small, covered by the blackened epidermis 

 which is raised into slight pustules. Asci clavate, 150 /i long. Spo- 

 ridia biseriate, fusoid, 45-50x4-41 fi, hyaline, prolonged at each end 

 into a bristle-like appendage, uniseptate at first, then 3-septate, the 

 extreme septa near the ends. 



On dead petioles of Sabal serrulata, Georgia (Ravenel), Florida 

 (Calkins). 



M. ceratotheca, (Cke.) 



Sphceria ceratotheca, Cke. Grev. XT, p. 109. 

 Metasphceria ceratotheca, Sacc. Syll. 6150, and Cke. Syn. 4487. 

 Exsicc. Rav. F. Am. 677. 



