585 



black circumscribing line is sometimes visible. Perithecia 3-8 in a 

 stroma, tolerably large, globose, with short, thick necks, subiiionos- 

 tichous, lying close together. Ostiola either slightly prominent, globose- 

 conical, faintly sulcate or depressed, funnel-shaped and perforated. 

 Asci narrow-oblong-clavate, obtuse at the apex, long-stipitate, polys- 

 porous, p. sp. 100-120 X 10-12 /«, with long, filiform paraphyses. 

 Sporidia conglomerated, cylindrical, straight or slightly curved, brown- 

 ish, 5-7 X 1 /i. 



On dead hazel and alder branches, Sandlake, N. Y. (iide Peck). 



Characterized by the stroma abruptly enlarged at base. 



D. nigro-annulata, (Grev.) 



SphcBria nigro-annutaia, Grev. Flor. Kd. p. 385. 

 Spfueria angulata, Fr. S. M. TI, p. 390. 

 Valsa angulata^ Fr, Summa, p. 411. 

 Diatrype angulata, Ces. & De Not, Schema, p. 28, 

 Diatrypella angulata, Nits, Pyr. Germ, p, 81, 

 Exsicc, Rab, F, K. 1022, — Krieg, F, Sax, 178, — Sydow, M. March. 2150, 



Stroma l|-3 mm. broad, suborbicular at base, narrowed above to 

 conical or hemispherical, angular, erumpent, clothed, except the dark 

 gray or nearly black apex, by the lacini* of the ruptured epidermis. 

 Perithecia 3-8 in a stroma, submonostichous, ovate or globose, or 

 angular from mutual pressure, with more or less elongated, slender 

 necks and small, scarcely prominent, obtuse, entire or faintly 4-sulcate 

 ostiola, which finally become umbilicate and perforated. Asci narrow- 

 clavate, long-stipitate, para-physate, 100-180x10-12 //. Sporidia 

 crowded, allantoid, yellowish, slightly curved, 5-8 x IJ fi. 



On dead limbs cii llext Mississippi (Earle), Texas (Ravenel). 



D. Tocciceana and D. nigro-annulata, (Grev,), scarcely difiPer 

 from £>. verrucceformis except in having fewer perithecia in a stroma ; 

 but as in this genus, this character is a variable one, not much impor- 

 tance can be attached to it. On the larger branches and trunks, the 

 stromata are lai'ger, and the number of perithecia greater than in 

 stromata on the smaller branches and twigs, so that the number of 

 perithecia in a stroma can hardly be relied on to separate specie? 

 otherwise closely allied. (Karst. Mycol. Fenn. II, p. 155). 



D. favkcea, (Fr.) 



Sphieria favacea, Fr, S, M, II, p, 354. 

 Sphesria quercina, var, betuUna, A, & S. Cousp, p. ll. 

 Diatrype favacea, Fr. Summa, p, 385, 

 Diatrype verruazformis, Tul. Sel. Carp, II, p, 100, 

 Diatrypella favacea, Nitsch, Pyr, Germ. p. 77. 

 Exsicc. Fckl. F. Rh. 1040.— Thum. F. Austr. 502.— Desm. PI. Crypt. Fd. I, 2051, Ed. 11, 

 1751.— Ell. N, A, F. 686. 



Stromata irregularly scattered, often 2 or more standing near 

 74 



