183 

 M. occidentkle, (Ell,) (Plate 21) 



Cucurbitaria occidentalis, EH- Bull. Torr. Bot. Club. VIII, p. 125. 

 Melanonima occidentale, Sacc. Syll, 3272, 



Perithecia crowded, depressed-hemispherical, flattened above, 300 

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

 75-80 X 12-14 //, with abundant paraphyses. 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 [i. 



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



Var. Tetonense, E. & E. {Melanormna 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 (Andenson 551), has the perithe- 

 cia and sporidia a little larger. 



M. inspersum, (Schw.) 



SptuEria inspersa, Schw. in Currey's Simple SphEer. 334, tab. I,IX, 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 ii long. 



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



M. helicophilum, (Cke.) 



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

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

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



Perithecia scattered among the hyphae of Helicoma Berkeleyi, 

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

 nucleate, becoming multiseptate, yellowish, 60-70 x 6 //. 



On decaying wood, with Helicoma Berkeley i, Carolina (Ravenel). 



M. seminis, (Cke. & Hark.) 



Spharia seminis, Cke. & Hark. Grev. XIII, p. i8. 

 Melanomma seminis, Sacc. Syll. 7007. 



Perithecia superficial, \-\ mm. diam., black, opake, subglobose, 

 sometimes subconfluent, ostiolum perforated. Asci clavate. Sporidia 

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



On twigs of Baccharia, California (Harkness). 



M. sulcatum, (Ell.) 



Spharia sulcata. Ell. Bull. Torr. Bot. Club, X, p. 53. 

 Melanomma sulcatum, Sacc. Syll. 7009. 

 Exsicc. Ell. & Evrht. N. A. F. 2d ser. 1663. 



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

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



