449 



stem, globose, | mm. diam. Ostiola erumpent, short-rostellate. Asci 

 fusoid-cylindrical, pubobtuse at each end, 65x8-9 /i, 8-spored, apar- 

 apliysate. Sporidia biseriate or oblique, cylindrical or subfusoid, 

 obtuse at each end, straight or curved, very slightly constricted in the 

 middle, 10-12 x 3^-4 jK, 4-nucleate, hyaline. 



On stems of Rumex aoetosella, New Jersey. 



Var. Polygoni, E. <fe E., on dead stems of Polygonum ucre, 

 Louisiana (Langlois 1351), differs only in the stems not being black- 

 ened. 



D. Eburensis, Sacc. Mich> II, p. 60. 



Stroma broadly effused, blackening the surface of the stem, but 

 without any black line within. Perithecia densely gregarious, not 

 deeply buried, ^ mm. or a little over in diam., subglobose. Ostiola 

 subcorneal, shortly (^— | mm.) exserted and roughening the stem. Asci 

 fusoid, 70x10-11 fi. p. sp. 40x10 p.), 8-spored. Sporidia biseriate, 

 fusoid, subobtuse, slightly curved, 15-18 x3-3| fi (15-16x4/^, Sacc), 

 constricted, uniseptate, 4-nucleate, hyaline. 



On some large herbaceous stem, Iowa (Hoi way). 



Differs from Z). Arctii in its larger, constricted sporidia and 

 phorter, obtuse ostiola; from D. immersa and D. orihoceras^ in its 

 curved, constricted and larger sporidia. 



D. Phacelife, Cke. & Hark. Grev. IX, p. 86. 



Subeffused. Stroma blackening the inner surface of the bark. 

 Perithecia subglobose, immersed. Ostiola cylindrical, elongated, flex- 

 uous. Asci clavate, sessile. Sporidia straight, sublanceolate, 4-nucle- 

 ate, tlien uniseptate, 18 xSJ [i. 



On branches of Phacelia, California (Harkness). 



D. enspina, (C. & E.) 



/ 



Sphceria euspina, C. & B. 6rev. V, p. 93. 

 Diaporlhe euspina, Sacc, Syll. 2535, Cke. Syn. 231I. 



Thickly scattered, small, \ mm. diam., buried in the surface of the 

 W'OoAj stem just under the bark, wliich is blackened on the inner sur- 

 face as is the surface of the stem when the bark falls away, but there 

 is no penetrating line or discoloration within. Ostiola erumpent, 

 short cylindrical, obtuse. Asci clavate, p. sp. about 40 x 6 pt. Spo- 

 ridia biseriate, fusoid, 4-nucleate, uniseptate, scarcely constricted, 

 hyaline, 10-13 x 2|-3 p. (18 x 3 /i, Cke.). Resembling D. spiculom. 



On dead stems of Chenopodium alhu»>; mostly near the base, 

 Newfield, N. J. 

 57 



