177 



Perithecia superficial, crowded, or sometimes scattered, ovate-glo- 

 bose, smooth, 400 /jl diam., black, firm but thin-walled, finally slightly 

 depressed around the papilliform ostiolum, at first sparingly clothed 

 with conidia-bearing hairs. Asci clavate-fusoid, sessile, 8-spored, par- 

 ti physate, 60-75 (p. sp. 50-55) x 8-10 //. Sporidia biseriate, elliptical, 

 hyaline, uniseptate, 12-15x5-7 /i. 



On rotten wood, Carolina and Pennsylvania (Schw.), on dry, 

 decorticated wood of JPlatanus, Canada (Dearness). 



M. subfasciculata, (Schw.) 



Sphceria subfasciculata., Schw. Syli. N. Am. 1565. 

 Psilospharia subfasciculata, Cke. Syn. 2991. 



Perithecia at first somewhat covered, but at length entirely de- 

 nuded. Allied to Bombardia fasciculata, but more scattered and 

 longitudinally subseriate. Perithecia subfasciculate, black, rugose, 

 subindurated, sometimes shaped just like those of B. fasciculata, but 

 often less elongated, subrotund and obtusely papillate, of smaller size 

 and subconfluent. Asci? Sporidia (sec. Cke. Grev. XV, p. 83) ellip- 

 soid, uniseptate, hyaline, 20 x 8 p. 



On decaying shoots of grape vines, Bethlehem, Pa. (Schweinitz). 

 M. confertissima, (Plowr.) 



Sphceria confertissima, Plowr. Grev. VII, p. 73. 

 Melanohsamma confertissima, Sacc. Syll. 2253. 



Perithecia minute, densely crowded in patches, more scattered 

 circumferentially, mutually compressed, subspherical, 80-100 x 10-15 ji 

 Sporidia biseriate, uniseptate, subequal, 15-20x5 p t hyaline. 



On scales of cones of Sequoia sempervirens, California, 



M. abscondita, E. & E. (in Herb.) 



Perithecia hemispherical, obtuse, black, about \ mm. diam., scat- 

 tered or crowded and subconnate, connected at base more or less dis- 

 tinctly by a thin, black crust, ostiolum papilliform, obscure. Asci 

 clavate-cylindrical, p. sp. about 75x12 //, with stout paraphyses. 

 Sporidia biseriate, oblong-fusoid, uniseptate, and strongly constricted 

 at the septum, slightly curved, nucleate, sometimes with two additional 

 epta, 20-22 x 5-6 p. 



Inside of old hickory nuts decaying on the ground. 



This has the outward appearance of Trematosphceria nudearia, 

 but the sporidia are very different. 

 23 



