581 



A. dry ophi lum, (Curr.) 



Diatrype dryophila, Curr. I,inn. Trans. XXII, p. 279, fig. 75. 

 Anthostoma dryophilum, Sacc. Syll. 1149. 

 Exsicc. EH. N. A. F. 87. 



Stromata scattered, sunk to the v^ood, circumscribed, black inside 

 and out, orbicular or elliptical at the base, subcorneal, 3-4 mm. diam., 

 or by confluence more, apex erumpent and at first tuberculiform, finally 

 truncate and concave, areolate from the large, obtusely flattened 

 ostiola. Asci (p. sp.) cylindrical, about 60 x 4 /*, paraphysate, 8-spored. 

 Sporidia uniseriate, oblong, becoming opake, continuous, 8-12x3- 

 3|/i, (10-15 x 3-4 fi, Curr.). 



On dead white oak limbs, Newfield, N. J., Texas (Ravenel), and 

 Iowa (Holway). 



Var. minor, Cke. (Grev. V, p. 32), on black and scarlet oak, New- 

 field, N. J., has the stroma more effused and less prominent, covered. 

 except the small, tuberculiform disk, by the blackened epidermis. 



A. phseospermum, (Ell.) 



Diatrype phceosperma, Ell. in Am. Nat. Feb. 1883, p. 195. . 

 Anthostoma phceosper mum, Sacc. Syll. 5936. 



Stroma small (1 mm.), tuberculiform, closely embraced by the sub- 

 laciniate-cleft epidermis. Perithecia 6-8 in a stroma, \ mm. diam.. 

 with thick, coriaceous walls, lying in a single layer in the bottom of the 

 white substance of the stroma, which is circumscribed by a black line 

 which scarcely penetrates to the wood. Asci clavate-cylindrical, p. sp, 

 about 55 x 7 fi. Sporidia subbiseriate, cylindrical, curved, continuous, 

 brown, 10-12 x 3 3J //, ends obtuse. 



On dead limbs, Decorah, Iowa (Holway). 



A. Ontariense, E. & E. Proc. Acad. Nat. Sci. Phil. July, 1890. p. 

 228. (Plate 34) 



Stroma convex, J-| mm* diam., more or less subseriately con- 

 fluent often for several cm., formed of the unaltered substance of the 

 bark and surrounded by a black, circumscribing line which penetrates 

 the wood. Perithecia crowded in the stroma, subglobose, J-f mm. 

 diam., with thick, coriaceous walls, contracted above into a narrow 

 neck terminated by the subglobose, deeply quadrisulcate, erumpent 

 ostiolum .Asci slender, 8-spored, 90-1 10 /i long (p. sp. 75-80 x 8-10 /*), 

 with abundant paraphyses. Sporidia subbiseriate, cylindrical, mod- 

 erately curved, brown, 20-26 x 4-4J fi. Has much the same general 

 appearance as some compact forms of Valsa stellulata, Fr. 



On dead limbs of Salix, London, Canada (Dearness). 



