183 

 M. occidentals (Ell,) (Plate 21) 



Cucurbitaria occidentalism EH. Bull. Torr. Bot. Club. VIII, p. 125. 

 Melanomma occidentale, Sacc. Syll, 3272, 



Perithecia crowded, depressed-hemispherical, flattened above, 300 

 -350 fi diam., with a papilliform ostiolum. Asci clavate-cylindrical, 

 75-80 x 12-14 /i, with abundant paraph yses. Sporidia biseriate, oblong, 

 slightly curved, obtuse, yellowish-brown, 3-5 (exceptionally 6-7-) sep- 

 tate, often slightly constricted near the middle, 20-25 x 5-6 f. 



On sage brush, Utah (S. J. Harkness). 



Var. Teto?iense, E. & E. (Melanomma Tetonense, E. & E. in Proc. 

 Acad. Nat. Sci. Phil. July, 1890, p. 240.), on dead stems of Artemisia 

 cana, valley of the Teton, in Montana (Anderson 551), has the perithe- 

 cia and sporidia a little larger. 



M. inspersum, (Schw.) 



Sphceria inspersa, Schw. in Currey's Simple Sphser. 334, tab. UX, fig. 112. 



Perithecia simple, corticolous, erumpent. Asci terete-clavate, 

 briefly stipitate, 8-spored. Sporidia biseriate or crowded, with the 

 endochrome 4-parted, constricted at the partitions, usually rather more 

 pointed at one end than at the other, 25-28 p. long. 



On bark, North America? (Schweinitz in Herb. Hooker). 



M. helicophilum, (Cke.) 



Sphceria helicophila, Cke. Grev. VI, p. 145. 

 Byssosphceria helicophila, Cke. Grev. XV, p. 123. 

 Melanomma helicophilum, (Cke.) Saec. Syll. 3274. 



Perithecia scattered among the hyphag of Helicoma Berkeleyi, 

 subglobose. Asci elongated, cylindrical. Sporidia fusiform, multi- 

 nucleate, becoming multiseptate, yellowish, 60-70x6 //. 



On decaying wood, with Helicoma Berkeleyi, Carolina (Ravenel). 



M. seminis, (Cke. & Hark.) 



Sphceria seminis, Cke. & Hark. Grev. XIII, p. 18. 

 Melanomma seminis, Sacc. Syll. 7007. 



Perithecia superficial, j-| mm. diam., black, opake, subglobose, 

 sometimes subconfluent, ostiolum perforated. Asci clavate. Sporidia 

 cylindrical, straight or curved, 5-septate, brown, 50 x 6 fi. 



On twigs of Baccharis, California (Harkness). 



M. sulcatum, (Ell.) 



Sphceria sulcata, Ell. Bull. Torr. "Bot. Club, X, p. 53. 

 Melanomma sulcatum, Sacc. Syll. 7009. 

 Kxsicc. EH. & Evrht. N. A. F. 2d ser. 1663. 



Perithecia superficial, densely gregarious, ovate, mm. diam., 

 black, not polished. Ostiolum tuberculiform, large, with a rather 



