182 



each end, rounded above, straight or a little curved, 3-septate, and 

 slightly constricted at the septa, brownish, 16-18 x 4-6 /z. 



On dead limbs and wood, Carolina, P(!nnsylvania, Virginia, New 

 York, California andCanada. 



M. cinereum, (Karst.) 



Sphceria ci-nerea, Karst. Myc. Fenn. II, p. 91. 

 Melanomma cinereum^ Sacc. Syll. 3259. 



Perithecia gregarious or crowded, attached to the inner bark, 

 and erumpent through the variously lacerated epidermis, at length 

 bare and free, sphseroid, smooth and subshining (at least when young), 

 black, 390-400 /i diam., with a subpapillate or umbilicate-impressed 

 ostiolum. Asci cylindric-clavate, J 20-140 ji long, 8-spored, with 

 abundant, filiform paraphyses. Sporidia subuniseriate or biseriate, 

 oblong, obtuse, 3-septate, the second cell generally somewhat enlarged, 

 slightly constricted at the septa, greenish-hyaline, tlien pale yellow, 

 20-28x6-10//. 



On dead limbs of Salix groenlandica, Sukkertoppen, Greenland. 



M. parasiticnm, E. & E. Proc. Acad. Nat. Sci. Phil. Pa., July, 

 1890, p. 240. 



Perithecia scattered or gregarious, superficial, ovate-hemispherical, 

 110-130 [1 diam., roughish, black. Ostiolum papilliform, soon per- 

 forated. Asci oblong-cylindrical, 40-50 x 8-10 //, sessile, without par- 

 aphyses. Sporidia crowded-biseriate, oblong-fusoid, 3-septate, and 

 finally slightly constricted at the septa, 10-12 x 3-4 fi, pale olivaceous. 

 Sphairia nigerrima, Blox. (Cke. Hndbk. No. 2612), which is parasitic 

 " on various species of Diatrype" has sporidia 12|-20 // long and a.t 

 length multiseptate, and perithecia " sprinkled with short, stiff bristles." 



On old Diatrype stigma, Newfield, N. J. 



M. Comminsii, E. & E. Proc. Acad. Nat. Sci. Phil., Pa., July, 

 1890, p. 239. 



Perithecia gregarious, ovate-globose, rough, black, minutely to- 

 mentose-pubescent when ypung, 110-125 /i diam. Ostiolum papilli- 

 form. Asci clavate-cylindrical, 50-55 x.7-8 n, with abundant, filiform 

 paraphyses. Sporidia biseriate, fusoid-obleng, 3-septate, slightly con- 

 stricted at the septa, olive-brown, 12-14x3-3| fi. 



Parasitic on Hypoxylon Sassafras, Wilmington, Del. (Commons). 



