449 



-tern, irloliose, | mm. diain. Ostiola erumpent. short-rostellate. Asci 

 fusoid-cylindrical, subobtuse at each end, 65x8-9 /*, 8-spored, apar- 

 aphysate. Sporidia biseriate or oblique, cylindrical or subfusoid. 

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

 middle. 10-12 x 3J-4 //, 4-nucleate. hyaline. 



On stems of Rumex acetosella, New Jersey. 



Yar. Polygon!. E. <V' E., on dead steins of Polygonum acre^ 

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

 ened. 



D. Ebnrensis, Sacc. Mich. II, p. 60. 



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



*. 



without any black line within. Perithecia densely gregarious, not 

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

 subconical, shortly (J-J mm.) exserted and roughening the stem. Asci 

 f'usoid, 70x10-11 p. p. sp. 40x10 //), 8-spored. Sporidia biseriate. 

 lusoid. subobtuse. slightly curved. 15-18 x3-3| t u. (15-16x4 /A Sacc.i. 

 ronstricted. uniseptate, 4-nucleate. livnline. 



On some lai-go liorl>a<'<'()iis -tern. Towa (Hohvay). 



Differs from D. Awtii in its larger, constricted Sporidia and 

 shorter, obtusi- ostiola: from D. -immcrsa and D. orthoceras, in its 

 curved, constricted and larger sporidia. 



1). Phacelias Cke. & Hark. Grev. IX, p. 86. 



Subcll'u-cd. Stroma blackening the inner surface of the bark, 

 Perithecia sub-lobose. immersed. Ostiola cylindrical, elongated, flex- 

 nous. Asci clavate. sessile. Sporidia straight, sublanceolate, 4-nu<'lc 

 ate. then uniseptate, I< s x3| //. 



On branches of PLm-did, Caliibrnia (Harkness). 



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



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

 Diaporthe euspina, Sacc. Syll. 2535, Cke. Syn. 2311. 



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

 woody stem just under the bark, which is blackened on the inner snr 

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

 is no penetrating line or discoloration within. Ostiola erumpenl 

 short-cylindrical, obtuse. Asci clavate, p. sp. about 40 x 6 p.. Sp-> 

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

 hyaline, 10-13 x 2J-3 JJL (18x3 //, Cke.). Resembling D. spiciilo&.t. 



On dead steins of Chenopodium rtUni>r,; mostly near the 

 Xewfield, X. J. 

 57 



