330 



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

 lying crosswise in the asci, oblong-elliptical, brown, obtuse, constricted 

 and uniseptate in the middle, 10-12x4-4| fx (13 x 6 fi, Cke.). 



On palm leaves, California. 



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

 I| p. sporules {PJilyctcena). 



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



D. Parnassiae, (Pk.) 



SphcEria ParnassitE^ Pk. 27th Rep. N. Y, State Mus. p. iii. 

 DidymosphiEria Parnassics^ Sacc. Syll. 2647. 

 Didymospharella Parnassitz , Cke. Syn. 4657. 



Perithecia scattered, convex or subhemispherical, prominent, 

 pierced above, black. Asci cylindrical. Sporidia long, narrow, uni- 

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

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



On dead stems of Pamassia Guroliniana, Albany, N. Y. (Peck). 



D. grumata, (Cke.) 



Sphtsria grumata, Cke. (in Uteris). 



DidymosphiEria grumata^ Sacc. Syll. 2695, Cke. Syn. 4250. 

 Exsicc. Ell. N. A. F. 185J— Rehm Asc. 441.— Thum, M. U. 460. 



Perithecia subgregarious, covered \)\ the blackened and swollen 

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

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

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

 coming pale brown and constricted, 21 x 8 /.(, at first with a gelatinous 

 envelope. 



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



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



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

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

 120 X 10 /i, 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. Rhamni and D. incerta, but 

 with a different ostiolum and asci. 



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



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

 1890, p. 235. 



Stroma consisting of the nearly unchanged substance of the culm 

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



