557 



through the substance of the stroma, with their coarse, black, rough, 

 pei-foratgd, conic-hemispherical ostiola (finally subcollapsing) tardily 

 erumpent, but not exserted. Asci cylindrical, short-stipitate, paraphy- 

 sate, p. sp. 80-100 x 10 /i. Sporidia uniseriate, oblong-elliptical, uni- 

 septate and constricted, obtusely rounded at the ends, deep reddisli- 

 brown, 14-16x9-10//. 



On bark of dead Acer, Fagus, Garpinus, Prunus, Liquidam- 

 har, JVyssa, Vlnms. &c., common, Canada to Florida. 



On bark with a thick epidermis, like cheriy and scarlet oak, the 

 conceptacles adhere to the epidermis and come off with it. This does 

 not agree Avith the description of Sphcsria quadrata, Schw. or with 

 the specc. of that species in Herb. Schw. The Sphceria quadrata in 

 Herb. Schw. is a Jlypoxylon, as indicated in the diagnosis in Schw. 

 Syn; N. Am. 1223. This species may be recognized by the tawny- 

 yellow color of the erumpent apex of the stroma. 



V. Akebise, E. & E. {in Herb.) 



Perithecia globose, small, about 200 /i diam., 3-6 together, sub- 

 circinate in the scarcely altered substance of the inner bark, contracted 

 above into very short necks, which raise the bark into little excres- 

 cence-like pustules through the pulverulent surface of which the minute, 

 black ostiola are barely visible. Asci cylindrical, subsessile, paraph- 

 ysate, 8-spored, 100-110x8-10 fi. Sporidia uniseriate, oblong-ellip- 

 tical, straight or slightly curved, brown, uniseptate, obtuse, scarcely 

 constricted, 12-18 x5-6 /x. 



On dead vines of Akebia quinata (cult), Newfield, N. J. 



V. pustulaus, (E. & E.) 



Diatrype pustulans, E. & E. Journ. Mycol. IV, p. 80. 

 Valsaria pustulans, Sacc. Syll. Add. II, p. 758. 



Stroma flattened, formed of the scarcely altered substance of the 

 matrix, covered by the cuticle which is blackened and raised in a 

 pustuliform manner, and finally pierced by the slightly projecting, 

 papilliform ostiola. The separate stromata are |-J cm. across, but are 

 more or less confluent with each other for 2-4 cm. or more in extent ; 

 the surface of the culm being continuously blackened, and the entire 

 area bounded by a black circumscribing line. Perithecia membrana- 

 ceo-coriaceous, subglobose, or a little flattened, of medium size, 8-12 

 in a stroma. Asci slender, 75-85 x 6-7 n, subsessile, with distinct, 

 filiform paraphyses. Sporidia uniseriate, oblong, uniseptate and con- 

 stricted, slightly narrowed at the ends, straight, brown, 10-12x3 //. 

 This is preceded or accompanied by a Coniothyrium with numerous 



