387 



Perithecia scattered, covered by the blackened epidermis, which 

 is raised into little pustules. Ostiola erumpent. Asci cylindrical or 

 clavate, 60-70 x 10-12 // (30x7 p Cke.). Sporidia biseriate, fusoid, 

 hyaline, uniseptate at first, becoming 3-septate and constricted, 20-25 

 x 6-8 fx. Var. foliicola, E. & E., is on dead spots in the leaves, 

 and has the perithecia subelongated or hysteriiform, but does not 

 differ materially in other respects. 



On dead petioles of Sabal Palmetto, Georgia (Ravenel). 



We have retained this species on the authority of Dr. Cooke, but 

 it is very doubtful whether it is specifically distinct from Leptosphm- 

 ria sabaligera, B. & C. The only appreciable difference lies in the 

 rather larger perithecia and subhyaline sporidia. 



M. macrotheca, Rostrup, Fungi Gronl. p. 561 (No. 183). 



Perithecia gregarious, globose-depressed. Asci very large, ovate- 

 oblong, contracted just below the apex, stipitate, 130-135 x 30-38 p. 

 Sporidia irregularly 3-seriate, 8-in an ascus, hyaline, 3-septate, each 

 cell with a cubical nucleus, 32-35 x 12-13 p. 



On dead leaves of Carex hyperborea, Sukkertoppen, Greenland. 



M. punctulata, E. & E. Journ. Mycol. IV, p. 76. 



Perithecia scattered, immersed, the surface of the culm remaining 

 quite even but blackened around the small, erumpent, black ostiola, 

 or. finally more or less uniformly blackened. Perithecia globose, \-\ 

 mm. diam., with a white, rather firm nucleus. Asci clavate-cylindri- 

 cal, 80-110 x 20 /i, with indistinct paraphyses. Sporidia fusoid, 

 slightly curved, 3-septate, hyaline, 40-50 x 6-7 p. 



On dead culms of Panicum Curtisii, St. Martinsville, La. 



M. stenotheca, (E. & E.) 



Sphceria (Metasphceria) stenotheca, E. & E. Journ. Mycol. Ill, p. 127. 

 Metasphceria stenotheca, Sacc. Syll. IX, p. 844. 



Perithecia scattered, membranaceous, subovoid, \ mm. diam., 

 buried in the matrix, except the rather prominent, depressed-conoid 

 apex, which is covered by the blackened epidermis, with only the 

 papilliform ostiolum erumpent Asci linear, 70-80 x 4-5 p, with in- 

 distinct paraphyses. Sporidia uniseriate, overlapping, oblong-fusoid. 

 3-4-nucleate, becoming 3-septate, subhyaline, 12-16x3 p. 



On sheaths of dead Panicum Curtisii, Louisiana (Langlois). 



