1895.] NATURAL SCIENCES OF PHILADELPHIA. 415 



Perithecia gregarious, erurapent-superficial, globose, 75-110 // 

 diam. surrounded by a crooked, branching, creeping mycelium 

 which blackens the surface of the stem, and clothed with straight, 

 black, 3-4— septate, spreading, bristles, 75-110// long and 6-7// 

 thick at base, tapering above to an obtuse point. Asci 

 clavate-cylindrical, sessile, 55-65x10-12//, 8-spored. Paraphyses 

 obscure or wanting. Sporidia crowded fusoid, 4-septate, the next 

 to the upper cell swollen, 22-30 X 4-4 £ //, slightly curved, yellowish- 

 hyaline. 



Distinguished from A. decastylum Cke., by its smaller perithecia, 

 with more abundant bristles and by the swollen joint of the sporidia. 



Herpotrichia purpurea E. & E. 



On dead culms and leaves of Deyeuxia Suksdorfii Scrib. Easton, 

 Wash., July, 1892. Prof. C. V. Piper, No. 344. 



Perithecia scattered, superficial, hemispherical, \— f mm. diam., 

 clothed with a dense coat of purple hair 90-140 X 3-3? //, continuous 

 or sparingly septate, soon deciduous above, leaving the apex of the 

 perithecium and the papilliform ostiolum bare. 



Asci cylindrical, 40-50 x 3-7 //, short-stipitate, aparaphysate, 

 8-spored. Sporidia biseriate, fusoid-oblong, hyaline, becoming 

 faintly uniseptate, very slightly curved, subobtuse, 9— 14xl£— 2//. 



Letendraea luteola E. & E. 



On decayed wood. Ohio (Morgan No. 1,109.) Perithecia gre- 

 garious, superficial, thick- mem branaceo-carnose, i—§ mm. diam., 

 yellow-farinose-pubescent above, mostly more or less collapsing. 

 Ostiolum short-cylindrical, stout. Asci cylindrical, 75-85x5-6//, 

 attenuated below into a stipe 30-35// long, indistinctly paraphysate, 

 6-8-spored. Sporidia, uniseriate, oblong, slightly narrowed at each 

 end, but obtuse, often slightly inequilateral, uniseptate, but not con- 

 stricted, pale-brown, 8-11 x3-3?//, lying end to end in the asci. 



Rosellinia geasteroides E. & E. 



On decaying stem of Arundinaria, St. Martinville, La., Julv, 

 1895. Rev. A. B. Langlois, 2,404. 



Perithecia gregarious, superficial, depressed-globose, f mm. diam., 

 with a distinct, papilliform ostiolum, wall of the perithecium double, 

 the outer coat membranaceous, soon splitting into about 5 reflexed 

 lobes, and resembling a minute Geaster. Asci cylindrical, 100-110 



