1895.] NATURAL SCIENCES OF PHILADELPHIA. 425 



curved, 13-16x35-4//., brown with a hyaline, minute, subglobose 

 appendage at the lower end. The perithecia are mostly scattered 

 singly, but here and there they are collected in groups of 3-4, with 

 their ostiola collected - in a fascicle. 



This differs from A. stegophora (Mont. ) in its scattered or grouped 

 not, seriate, perithecia, and in its permanently oblong appendic- 

 ulate sporidia ; from A. Bambusce Lev. in the absence of any stroma. 



Valsa leucopsis E. & E. 



On bark of Fraxinus viridisl Cody, Nebraska, March 28, 1893. 

 Rev. J. M. Bates. Comm. Prof. Thos. A. Williams. 



Stroma, depressed-conical, f-1 mm. diam., orbicular, consisting of 

 the nearly unaltered substance of the bark, the flattened apex erum- 

 pent and snow-white. Perithecia 6-12, circinate in the bottom of the 

 stroma, about 150 // diam., abruptly contracted above into slender 

 necks, their black, puuctiform ostiola, erumpent through the snow- 

 white disk but not exserted. Asci elavate-cylindrical, 22-27 x 

 5-6;/. Sporidia biseriate above, allantoic!, hyaline, slightly 

 curved, 5— 6Jxl— li^t 



Has the outward appearance of Valsa leucostoma (Pers. ) or V. 

 nivea (Hoff. ), but the asci and sporidia are smaller and there is no 

 conceptacle enclosing the stroma, besides the different habitat. 



Eutypella alpina E. & E. 



On dead trunks of Alnus incana. Larimer Co., Colo., July 1895. 

 Alt. 7,000 ft. C. F. Baker, No. 363. 



Stroma seated on the wood, depressed conical, orbicular or 

 elliptical, 3-4 mm. diam., white inside, enclosed in a stout, black, 

 subcarbonaceous shell, circumscribed by a black line penetrating the 

 wood. Perithecia 20-30 in a stroma, monostichous, crowded, ovate- 

 globose, i mm. diam., necks slender, rising through the white 

 substance of tbe stroma and terminating in a compact fascicle of 

 stout, subglobose, quadrisulcate ostiola erumpent through transverse 

 cracks in the epidermis or closely surrounded by it. Asci, p. sp. , 

 22-24 x 4-5 ,»., long stipitate, with stout, nucleate paraphyses 

 exceeding them in length. Sporidia subbiseriate, allantoid, yellowish, 

 moderately curved, 7-10 x 1^-2 ,".. 



Differs from E. similis (Karst.) in its larger sporidia from E. 

 alnifraga ( Wahl.) in the shorter spore-bearing part of the asci, and 

 from both in the much more numerous perithecia. 



