389 



Superficial, nestling in a black, conidiiferons subiculum. Peri- 

 thecia very small, black, opake, hemispherical. Asci lanceolate, with 

 an acute, horn-shaped apiculus above. Sporidia lanceolate, 3-septate, 

 hyaline, 25x5 p.. Conidia pluriseptate, muriform, brown, 45-50 fi 

 long. 



On culms of Zea Mays, Aiken, South Carolina. 



M. borealis, Rostr. 1. c. 



Perithecia gregarious, above the medium size, sphaeroid, with a 

 conoid papilla. Asci cylindric-clavate, 70-75 x 14-1 6 p. Sporidia 

 biseriate, cuneate-oblong, 1-3-septate, hyaline, obtuse at both ends, 

 22-26 x 5-6 //. 



On dry stems of Tofielda borealis, Umanarsuk, Greenland. 



M. Panicorum, (Cke.) 



Sphcerella Panicum, Cke. Grev. V, p. 153. 



Metasphceria Panicorum, Sacc. Syll. 3483, and Cke. Syn. 4479. 



Perithecia epiphyllous, scattered, covered, on purple spots. Asci 

 clavate. Sporidia biseriate, fusiform, hyaline, triseptate, 25 x 5 ft. 

 On fading leaves of Panicum, South Carolina. 



M. carectorum, (B. & C.) 



SphcEria carectorum, B. & C. Grev. IV, p. 153. 



Metasphceria carectorum, Sacc. Syll. 3487, and Cke. Syn. 4482. 



Minute, punctiform, scattered, subprominent. Asci clavate. Spo- 

 ridia short-fusiform, 4-nucleate. No measurements given. 

 On leaves of Carexfollictdata, United States. 



M. recutita, (Fr.) 



Sphceria recutita, Fr. S. M. II, p. 524. 

 Sphcerella recutita, Fckl. Symb. Nachtr. II, p. 21. 

 Metasphceria recutita, Sacc. Syll. 3484, and Cke. Syn. 4480. 

 Exsicc. Fckl. F. Rh. 2434. 



Perithecia very small, spherical, perforated above, black, innate- 

 erumpent, crowded in long, parallel lines, so that often the whole leaf 

 appears gray. Asci pyriform or ovate-elliptical, sessile, 8-spored, 

 27-30 x 12 fi. Sporidia conglomerated, elongated-clavate, somewhat 

 narrowed below, uniseptate, slightly constricted at the septum, hyaline, 

 12-14x31//. 



On dead leaves of Carices, Troy, N. Y. (sec. Peck). 

 ** Sporidia 4:-&-septate. 



M. defodiens, (Ell.) 



Sphceria {Leptosphceria) defodiens, Ell. Bull. Torr. Bot. Club, VIII, p. 90. 

 Metasphceria defodiens, Sacc. Syll. 3505, Cke. Syn. 4503. 

 Fxsicc. EH. N. A. F. 889. 



