475 



Perithecia circulating around a central one. included in a cine- 

 reous-black stroma, necks short, ostiola, densely crowded and erumpent 

 in a convex disk. On hare wood it varies, becoming' eflused, with the 

 ostiola distinct. Asci 8-spored. Sporidia allantoic!*, 10 fi long. 



On Prunus, New England and Pennsylvania (Schw.). 



Species imperfectly known. 

 V. leiphsemioides, B. & C. Grev. IV, p. 101. 



Kxsicc. Rav. F. Am. 192. 



" Pustules, when the cuticle is stripped otf, covered with the brown 

 l>ark, the ostiola only exposed and mixed with white matter. Sporidia 

 sausage-shaped, 10 /i long." 



On oak, New England and Carolina. Closely resembling Dht- 

 porthe leiphmmia, (Fr.), but with different fruit. 



The specimens in our copies of Rav. F. Am. are entirely without 

 fruit. The specc. issued in Ell. & Evrht. N. A. F. 2d Ser. 2344, are 

 a Galosphmria, apparently a compact form of G. lasiostoma, E. & E.. 

 which is probably the same as G. scabriseta Schw. This same Galo- 

 sphceria is found on the spec, in Rav. F. Am. 192. 



V. Nyssae, Cke, Grev. VI, p. 145. 



Kxsicc. Rav. F. Am. 194. 



As nothing satisfactory can be made out of the spec, in Rav. F. 

 Am., we can only quote the brief description in Grevillea. 



" Pustules covered by the bark. Perithecia ovate, attenuated into 

 a long neck, black. Asci clavate. Sporidia linear, curved, hyaline. 

 8 fi long. Often the center of the pustule is occupied by a large sper* 

 mogonium around which the perithecia are clustered.'' 



On Nyssa, Aiken, So. Carolina, 



The specimens of Sphceria radician, Schw.. and Sphasria oligos- 

 toma, Schw., in Herb. Schw., are without fruit, and are apparently 

 barren, Valsas. 



V. centripeta, (Fr.) 



Sphceria centripeta, Fr. S. M. II, p. 402. 

 1/alsa centripeta, Fr. in Peck's 26th Rep | 



Pustulate, orbicular or elliptical, disk transversely erumpent, but 

 variable. Perithecia rather large, globose-depressed, covered, the 

 very small, crowded, exserted, semiglobose ostiola mostly arranged in 

 two parallel lines, forming an elongated, black spot in the cent 

 the erumpent, flat disk. 



