330 



drical, 75x 10 //,-paraphysate. Sporidia uniseriate, oblique, often 

 lying crosswise in the asci, oblong-elliptical, l)rown, obtuse, constricted 

 and uniseptatc in the middle, 10-12 x4-4J /j. (13x6 /JL, Ckc.). 



On palm leaves, California. 



Some of the pcrithecia are filled with curved, hyaline. 12xlJ- 

 1 \ /j. sporules (Phlyctcena). 



The diagnosis is from specc. sent by Dr. Harkness, 



I). Pamassiie, (Pk.) 



Sph&ria Parnassitz, Pk. 27th Rep. N. Y. State Mus. p, in. 

 Didymosphceria Parnassicz, Sacc. Syll. 2647. 

 Didymospheerella Parnassicz, Cke. Syn. 4657. 



Perithecia scattered, convex or subhemispherical, prominent, 

 ]ierced above, black. Asci cylindrical. Sporidia long, narrow, uni- 

 scptate, generally constricted at the septum, often slightly curved, 

 colored, 30-33 p. long, with 1-2 nuclei in each cell. 



On dead stems of Parnassia Caroliniana, Albany, N. Y. (Peck). 



D. grnmata, (Cke.) 



Sphceria gruwata, Cke. (in literis). 



Didymosphtzi ia gt -umata, >Sacc. Syll. 2695, Cke. Syn. 4250. 

 Exsicc. EH. N. A. F. 185. Rehra Asc. 441. Thum. M. U. 460. 



Perithecia subgregarions, covered by the blackened and swollen 

 epidermis, globose, about \ mm. diara., obtusely papillate, black. 

 Asci clavate, 100-120x12-15 //, with branching paraphyses, 8-spored. 

 Sporidia subbiseriate, clavate- oblong, uniseptate, hyaline, at length be- 

 coming pale brown and constricted. 21x8 JJL, at first with a gelatinous 

 envelope. 



On living stems of Andromeda ligustrina, Newfield, N. J. 



D. accedens, Sacc. Proc. Rochester Acad. March, 1890, p. 48. 



Perithecia gregarious, covered, J-J mm. diam., nucleus at first 

 white. Ostiolum papilliform, erumpent. Asci clavate-cylindrical, 

 120 x 10 //, paraphysate. Sporidia uniseriate, 6-8 in an ascus, ellip- 

 tical, rounded at the ends, uniseptate and slightly constricted, dark 

 brown, 20-22 x 9-11 //.. Allied to D. Rhumni and D. incerta, but 

 with a different ostiolum and asci. 



On bark of Fraxinus, Lyndonville, N. Y. (Fairman). 



D. Andropogonis, Ell. & Lang. Proc. Acad. Nat. Sci. Phil., July. 

 1890, p. 235. 



Stroma consisting of the nearly unchanged substance of the culm 

 which is there whiter than the surrounding parts, 3-4 cm. long, 1 cm. 



