100 



ruptured margin of which it is closely embraced. Perithecia cespi- 

 tose, nearly Mack, smooth and glabrous, small, mostly less than 165 ft, 

 conical, becoming ovate or obovate, and finally collapsing above. 

 Ostiolum obtuse-conical, black and shining, rather large. Asci si i It- 

 cylindrical,- 45-55x7 /i, with abundant, imperfectly developed paraph- 

 yses. Sporidia subbiseriate, oblong-elliptical, lower cell sometimes a 

 little narrower, uniseptate, hyaline, 10-12x4 ft. 



On dead stems of Staphylea trifolia, Bethlehem, Pa. (Schweinitz) 7 

 West Chester, Pa. (Everhart). 



The foregoing description is from specimens distributed in N. A. 

 F. 1547, which agree with specimens in Herb. Schw. The groups of 

 perithecia are often arranged in a subseriate manner, about 1 mm. 

 diam. and, with the stroma to which they are attached, are finally 

 deciduous. 



N. nigrescens, Cke. Grev. VII, p. 50. 



" Cespitose, red, at length turning black, glabrous. Ostiolum 

 papilliform. Asci cylindrical. Sporidia elongated-elliptical, unisep- 

 tate, 18x6 p. Stylospores on the same stroma, some ovate, brown, 

 5x3 //, others linear, 6x2 /i, hyaline." 



On Gleditschia, Aiken, So. Carolina (Ravenel). 



N. curcurbitula, (Tode). 



Sphczria curcurbitula, Tode Fung. Meckl. II, p. 38 (partly). 

 Nectria curcurbitula, Fr. Summ. Veg. Sc. p. 338. 

 Fxsicc. Kunze F. Sel. 105. Sydow. M. March. 472. Rehm Asc. 781. 



Perithecia ovate-globose, smooth, dark red, with a distinct, papilli- 

 form ostiolum, not collapsing, scattered or oftener cespitose on a de- 

 pressed tuberculiform stroma. Asci cylindrical, 90-100x6-7 /i, with- 

 out paraphyses, 8-spored. Sporidia monostichous, biconic-elliptical, 

 uniseptate, hyaline, 14-16 x5-6| fju 



The only American specimen we have seen was on bark of Abies 

 balsa?nea, collected by Mr. Peck at North Elba, N. Y., and sent to us 

 as N. balsa mea, C. & P. It agrees with the characters above given 

 and with the specimens in the Exsiccati above quoted. We have not 

 seen the spermogonia mentioned by Saccardo in Syll. II, p. 484. 



N. rhizogena, Cke. Grev. XI, p. 108. 



" Cespitose, erumpent, stromatic, orange : red, at length scarlet. 

 Perithecia subglobose, glabrous, scarcely papillate, breaking out in 

 small groups of 10-12 together. Asci cylindrical. Sporidia narrowly 

 elliptical, uniseptate, hyaline, 8-9 x 3 /*. The conidia are those of a 

 Tubercularia, with a rose-colored tint and 5x2//. 



