424 PROCEEDINGS OF THE ACADEMY OF [1895. 



8-spored. Sporitlia fasciculate, elongated-fusoid, brownish in the 

 asci, nearly hyaline when free, 3-septate, not constricted, nearly 

 straight, about 40 x 3 £—4 //. 



Ophiobolus purpureus E. & E. 



On dead steins of some Umbelliferous plant, on Mt. Richtophen, 

 N. W. Colo., alt. 9,500 ft., Aug 1894. C. F. Baker, No. 277. 



Perithecia gregarious, buried on parts of the stems stained purple- 

 red, ovate-globose, about 250 //. diam. , covered by the blackened 

 epidermis which is raised into slight pustules and pierced by the 

 prominent-papilliform ostiolum. Asci clavate-cylindrical, sessile, 

 paraphysate, obtuse, 80-100x12-15/-/.. Sporidia crowded, elon- 

 gated-fusoid, moderately curved, about 6-septate, 50-65 x 5-6 //, one 

 cell, near the middle, swollen, yellowish-brown. 



Differs from O. porphyrogonus (Tode) and O. consimilis E. & E. 

 in its broader asci and sporidia. O. fulgidus C. & P. has the peri- 

 thecia emergent and no swollen joint in the sporidia. 



Thyridium pallidum E. & E. 



On dead limbs of Rhus glabra. Rooks Co., Kansas, May 1895. 

 Bartholomew No. 1,711. 



Perithecia scattered, depressed-globose, about I mm. diam., sunk 

 in the surface of the inner bark, dirty white above, covered by the 

 epidermis which is perforated by the conic- papilliform, amber-colored 

 ostiola, but not raised into pustules. Asci cylindrical, 110-130 x 

 12//, short-stipitate, paraphysate. Sporidia uniseriate, oblong- 

 elliptical, 8-septate, constricted, in the middle, the cells mostly divided 

 by a longitudinal septum, yellow-brown, 20-22 x8-10//. 



There is no outward indication of the fungus except the numerous, 

 small round perforations in the epidermis, but when this is stripped 

 off, the surface of the inner bark is seen to be dotted with the round, 

 pallid, slightly prominent apices of the perithecia. 



Anthostomella albocincta E. & E. 



On dead culms of Arundinaria, Louisiana. Langlois. 



Perithecia sunk in the unaltered substance of the culm, without any 

 stroma or any circumscribing line, globose, 500-600// diam., with 

 thick, coriaceous walls. Ostiola erumpent, globose, often collapsing, 

 surrounded by the slightly raised, whitened epidermis. Asci cylin- 

 drical, stipitate, p. sp. 80-100x6-7//. Paraphyses evanescent. 

 Sporidia uniseriate, mostly overlapping, subfusoid- oblong, scarcely 



