389 



. Superficial, nestling in a black, conidiiferous subiculnm. Peri- 

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

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

 hyaline, 25x5 //. Conidia pluriseptate, niuriform, brown, 45-50 t a 

 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, 70-75x14-16 a. Sporidia 

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

 22-26 x 5-6 fi. 



On dry stems of Tafielda borealis, Umanarsuk, Greenland. 



M. Panicomm, (Cke.) 



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



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



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

 davate. Sporidia biseriate, fusiform, hyaline, triseptate, 25 x 5 a. 

 On fading leaves of Panicum, South Carolina. 



M. carectorum, (B. & C.) 



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



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



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

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

 On leaves of Carexfolliculata, United States. 



M. reeutita, (Fr.) 



Sph&ria reeutita, Fr. S. M. II, p. 524. 

 Sphczrella. reeutita, Fckl. Symb. Nachtr. II, p. 21. 

 Metasphceria reeutita, Sacc. Syll. 3484, aud 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 j. Sporidia conglomerated, elongated-clavate, somewhat 

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

 12-14 x3J JM. 



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



** Sporidia ^-%-septate. 

 M. defodiens, (Ell.) 



Sph/zria (Leptosphcerid) defodiens, TS,\\. Bull. Torr. Bot. Club, VIII, p. 90. 

 Metasph&ria defodiens, Sacc. Syll. 3505, Cke. Syn. 4503. 

 Exsicc. EH. N. A. F. 889. 



