1893.] NATURAL SCIENCES OF PHILADELPHIA. 151 



55-65 x 6-7,". Paraphyses branched and conidiiferous at the tips. 

 Sporidia fasciculate, cylindrical, multinucleate, 45-55 x 3//, straight 

 while lying in the asci, spirally curved when free, hyaline, faintly 

 4-6 (or more) septate. 

 Stictis helicotricha E. & E. 



On leaves and sheaths of Arundinaria tecta, Stark ville, Miss. 

 April, 1890. (Tracy, 1,335.) 



Purplish-black throughout about 2 mm. diam., closed at first, at 

 length opening with a small round mouth with the entire border 

 scarcely prominent. The base of the ascoma projects in a pustuli- 

 form manner on the other side of the leaf. Asci subcylindrical, attenu- 

 ated above, 150-170 x 6//, with abundant filiform paraphyses broadly 

 recurved at their tips. Sporidia filiform, about as long as the asci, 

 interwoven, multinucleate, becoming multiseptate 1—1 J/^- thick. 

 Differs from S. arundinacea Pers. in lacking the prominent, white 

 border around the mouth, and in the strongly recurved tips of the 

 paraphyses and rather narrower sporidia. 



The specific name alludes to the strongly recurved and subinvolute 

 tips of the paraphyses. 

 Naemacyclus culmigenus Ell. & Langlois. 



On dead culms of Panicum proliferum, Louisiana. June, 1888. 

 (Langlois, No. 1,443.) 



Narrow-elliptical, 1-1 h. x i-f mm., acute at each end bordered by 

 the ruptured epidermis. Disk livid-white. Asci oblong, obtusely 

 pointed, 50x6//. Sporidia liuear-fusoid, continuous, about 40//, 

 long, faintly nucleolate. 



Propolidium fuscocinereum E. & E. 



On bark of dead willow limbs, London, Canada. (Dearness.) 

 Apothecia subcuticular, orbicular, 1-1 £ mm. diam., flat, thin, 

 light slate-color, with a slightly elevated, narrow, white margin 

 which is not lobed or cleft, soon piercing the epidermis with a round 

 opening exposing the disk. Asci sessile, clavate-oblong, 50-60 x 12 

 -15//.. Paraphyses branched at their tips and conidiiferous, forming 

 a slightly olivaceous epithecium. Sporidia inordinate, cylindrical, 

 curved, 3-septate, hyaline, ends obtuse, 15-23x3-35//. Differs 

 from P. atrovirem (Fr.) in its thinner substance, different color and 

 narrower sporidia. 



Coccophacidium salicinum E. & E. 



On dead limbs of Salix, Helena, Montana. Jan., 1889. (Rev. F. 

 D. Kelsey, No. 5.) 



