497 



diam., with thick, blacli walls, and contracted above into short, con- 

 ^•erging necks with quadrisulcate ostiola collected in a slightly eriini- 

 pent fascicle in the center of the disk. The upper part of the stroma 

 around and between the necks of the perithecia, is filled with whitish, 

 grumous matter. Asci about 100 n long, including the slender base, 

 (p. sp. 50 X 10-12 /i). Paraphyses filiform, abundant. Sporidia 8 in 

 an ascus, allantoid, yellowish, moderately curved, 12-18 x3|-4 fi. 

 The stromata are often confluent. The wood beneath is marked by a 

 distinct, black, circumscribing line. The circular, flat, grayish-black 

 disk is a distinguishing character. 



On dead branches of Salix, Decorah, Iowa (Holway). 



Eh. sabalina, Oke. Grev. VII, p. 52. 



Pustules small, oblong, 1-2 mm. long, prominent. Perithecia 

 2-5!iin a stroma composed of the unaltered or more or less blackened 

 substance of the stem, globose, about J mm. diam., black and shining 

 inside, walls thick. Ostiola subconvergent, erumpent but scarcely 

 prominent, obtusely conical, distinctly quadiisulcate, stout. Asci 35- 

 40 X 5-6 fi, lanceolate-clavate, 8-spored. Sporidia subbiseriate, allan- 

 toid, nearly hyaline, obtuse, 7-8 x 1^-2 /i. 



On Sabal, Georgia and Florida. 



The surface of the stem is generally I )lackened continuously where 

 occupied by the fungus, but there is no distinct circumscribing line 

 around each separate pustule. 



Eu. tnmidula, (0. & P.) 



I^alsa tumidula, C. & P. 29th Rep. N. Y. State Mus. p. 58. 

 Eulypella tumidula, Sace. Syll. 593. 



Erumpent, piercing the elevated, discolored cuticle, ultimately 

 exposing the blackened disk. Perithecia 4-6, semiimmersed in the 

 wood, circumscribed by a black line. Ostiola obtuse, quadrisulcate. 

 Asci clavate. Sporidia linear, straight or curved, obtuse, hyaline, 10- 



13 /^ long. 



On dead branches of Cratcegus, New York State (Peck). 



Eu. aleiirina, (B. & 0.) 



yalsa (Eutyfrella) ahuriaa, B. & C. Grev. XIV, p. 46. 



Pustules convex, orbicular, densely gregarious, erumpent, the epi- 

 dermis stellately cleft around the ostiola. Perithecia black, nestling 

 in the bark, their sulcate necks converging. Asci clavate, 8-spored. 

 Sporidia allantoid, hyaline, 8 fi long. 



On bark o1 Pla.tanus, North Carolina. 

 63 



