183 

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



Cucurbitaria occidental 'is , EH. Bull. Torr. Bat. Club. .VIII, p. 125. 

 Afelanomma 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 /j., 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 /;.. 



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



Var. Tetonense, E.<fc E. (Melanomma Tetonense, E. & E. in Proc. 

 A cad. Nat. Sci. Phil. July. 1890, p. 240.), on dead stems of Artemivti 

 r((/t</. valley of the Teton, in Montana (Anderson 551), has the perithe- 

 cia and sporidia a little larger. 



M. inspersum, (Schvv.) 



Sphtzria inspersa, Schw. in Currey's Simple Sphasr. 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. Xorth America? (Schweinitz in Herb. Hooker). 



M. helicophiluni, (Cke.) 



Sphazria hflicophila, Cke. Grev. VI, p. 145. 

 Byssosph&ria helicpphila, Cke. Grev. XV, p. 123. 

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



Perithecia scattered among the hypha? of Hd'n'Onia Berkeley/. 

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

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



On decaying wood, with Helicon/a Berkeleyi, Carolina (Ravenelj. 



M. seiiiinis, (Cke. & Hark.) 



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

 Melanomma seminis, Sacc. Syll. 7007. 



Perithecia superficial, J-J mm. diam., black, opake, subgiobose, 

 sometimes subconfluent, ostiolum perforated. Asci clavate. Sporidia 

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



On twigs of Baccharis, California (Harkness). 



M. sulcatura, (Ell.) 



Sphezria sulcata, EH. Bull. Torr. Bot. Club, X, p. 53. 

 Melanomma sulcatum, Sacc. Syll. 7009. 

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



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

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



