429 



but finally more or less exserted. Asci fusoid, 50 x 6-7 [x. Sporidia 

 subbisei'iate, oblong-fusoid, 4-nucleate, slightly constricted in the mid- 

 dle, 12-15x3-31 u. 



On dead limbs of Ailanthus glandulosa, Delaware (Commons). 



The specc. sent by Mr. Commons are quite variable as to the 

 ostiola which are sometimes | mm. long and then clavate. The stroma 

 is limited by a black circumscribing line. 



D. bicincta, (C. & P.) 



Vatsa bicincta^ C. & P. 2gth Rep. N. Y. State Mus. p. 64. 

 Diaporihe bicincta, Sacc. Syll. 2411. 



Stromata thickly scattered, depressed-hemispherical, about 3 mm. 

 diam., seated on the inner bark without any circumscribing line, dirty 

 white inside. Perithecia 6-20 in a stroma, of medium size, sunk in 

 the bark, their cylindrical necks terminating in a compact fascicle of 

 stout, black, obtusely conical ostiola piercing the epidermis but not 

 rising much above it, and finally umbilicate-collapsed. Asci subcylin- 

 drical, 40-45 x 6 /^. Sporidia biseriate, narrow-elliptical, 4-nucleate, 

 not constricted, 10-13 x 3 /^. 



On dead branches of Juglans cinerea, New York (Peck). 



When the epidermis is peeled off, the fascicle of ostiola is sur- 

 rounded by a pale whitish zone at base, and this,, again, by a dark- 

 colored line. 



D. leiphsemia, (Fr.) 



SphcEria leiphiBmia, Fr. S. M. II, p. 399. 



Valsa leiphcemia, Fr. Summa, Veg. Sc. p. p. 412 . 



Diaporihe leiphcema, Sacc. M. V. spec. p. 135, tab. XIII, figs. 26-28. 

 Exsicc. Fckl. F. Rh. 611.— Kze. F. Sel. 348.— Rab. Herb. Mycol. 732, id. F. E. 1015, 2225. 

 Rehm Asc. 476.— eke. F. Brit. Ser. I, 255, 2d Ser. 225.— Desm. PI. Cr. Ed. I, 1256, 

 Ed. II, 756.— EU. N. A. F. 93. 



Stromata numerous and thickly scattered but not confluent, coi'ti- 

 cal, with a pale, erumpent, convex-hemispherical disk. Perithecia 

 numerous, lying in the bottom of the stroma, pale, soft. Ostiola not 

 strongly exserted. Asci fusoid, subsessile, 70-80 x 9 /i, 8-spored. Spo- 

 ridia biseriate, oblong-elliptical, uniseptate, slightly constricted, 15- 



20 x 4 /i. 



On decaying oak limbs, common. Mostly on Quetxus alba around 



Newfield. 



D. Raveneliana, Thilm. & Rehm in Thiim. M. U. 865, is D. 

 leiphcBmia, Fr. (at least in our copy). 



D. crinigera, E. & E. Proc. Acad. Nat. Sci. Phil. July, 1891. 

 Stroma cortical. Perithecia buried in the substance of the inner 



