1894.] NATURAJ. SCIENCES OF PHILADELPHIA. 383 



i ram. diam., with a narrow, compressed, deciduous ostiolum. Asci 

 clavate-cylindrical, 150-200 x 22-25/., p. sp. 112-130;/ long, jnira- 

 physate, 8-spored. Sporidia biseriate, oblong-elliptical, with the ends 

 subacute, olive-brown, 10-11-septate. not constricted, 40-55 x 13- 



16,a. 



Lophidium pachystomum E. & E. 



On outer bark of Popalus monilifera, Kansas (Bartholomew). 



Perithecia gregarious, erumpent-superficial, depressed-globose, 

 4^-1 mm. diam., base slightly sunk in the bark, rounded above at 

 first and without any visible ostiolum, but finally with a stout, short- 

 cylindrical, obtuse, scarcelv compressed ostiolum \-h mm. Ion?. 

 Sometimes two or three perithecia are confluent. Asci clavate- 

 cylindrical, 110-120x18-22// (p. sp. 100-110//.), paraphysate, 

 8-spored. Sporidia biseriate, clavate-oblong or obovate-clavate, 27- 

 50x12-15//, 6-12-septate and muriform, becoming dark- brown, 

 sometimes shriveled and deformed. 



Distinguished by its turret-like ostiolum. 

 Lophidium nitidum E. & E. 



On dead shoots of cultivated grapevines, Nuttallburg, West Va. , 

 Jan. 1894 (L. W. Nuttall, No. 295). 



Perithecia scattered, semierumpent, small (200-250//. diam.), 

 black and shining, subhemispherical, the flattened base immersed in 

 the bark. Ostiolum compressed, thin, narrow, sometimes obsolete. 

 Asci cylindrical, short- (8-10//) stipitate, about 100x10-12//, para- 

 physate, 8-spored. Sporidia uniseriate, oblong-elliptical, yellow- 

 brown, 5-7-septate with a longitudinal septum running through two 

 or more cells, 19-22 x 8-10//, ends mostly rounded and obtuse, not 

 at all or only slightly constricted in the middle. 



Lophidium purpurascens E. & E. 



On old paper lying by the roadside, Ann Arbor, Mich., March, 

 1894 (L. N. Johnson, No. 1,564, partly). 



Perithecia gregarious, on purplish spots, ovate, 400-450// diam., 

 the apex emergent and crowned with the obtuse, compressed ostio- 

 lum. Asci clavate-cylindrical, 100-150x15-20//., p. sp. 80-100/i 

 long, paraphysate, 8-spored. Sporidia biseriate above, oblong or 

 fusoid-oblong, attenuated towards each end, 7-10-septate, slightly 

 curved, not at all or only slightly constricted, 2 or more of the cells 

 divided by a longitudinal septum, olive-brown, 22-25 x8-10//. 



