449 



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

 fasoid-cylindrical, subobtuse at each end, 65x8-9 ju, 8-spored, apar- 

 aphysate. 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 fit, 4-nucleate, hyaline. 



On stems of Pumex acetosella, New Jersey. 



Var. Polygoni, E. & E., on dead stems of Polygonum acre, 

 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 /i. p. sp. 40x10 //), 8-spored. Sporidia biseriate, 

 fusoid, subobtuse, slightly curved, 15-18 x3-3| p. (15-16x4 /a Sacc), 

 constricted, uniseptate, 4-nucleate, hyaline. 



On some large herbaceous stem, Iowa (Holway). 



Differs from D. Arctii in its larger, constricted sporidia and 

 shorter, obtuse ostiola; from D. immersa and D. orthoceras, in it? 

 curved, constricted and larger sporidia. 



D. Phacelise, Cke. & Hark. Grey. 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, then uniseptate, 18 x3| /*. 



On branches of Phacelia, California (Harkness). 



I), euspina, (C. & E.) 



Sphceria euspina, C. & E. Grev. V, p. 93. 



Diapor the euspina, Sacc. Syll. 2535, Cke. Syn. 23H. 



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

 woody stem just under the bark, which 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 p. Spo- 

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

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



On dead stems of Chenopodium album; mostly near the base, 

 Ncwfield, N. J. 

 57 



