487 



Sporidia allantoid, hyaline, not strongly curved, 7-9 xl| fx (10-12 x 

 5 fi, Cke.). 



On dead limbs of Nyssa, Carolina (Curtis), New Jersey (Ellis). 



On the larger limbs the pustules are larger, with the dense tufts 

 of short, black ostiola, subseriately erumpent in longitudinal cracks in 

 the bark. 



The above diagnosis is from the specc. referred to by Cooke in 

 Grev. V, p. 92, and VI, p. 10. 



V. transliicens, (De Not.) 



Sphceria iranslucens, De Not. Micr. Ital. V, No. 2. 

 Valsa translucens, De Not. Schema Sfer. p. 34. 

 Fxsicc. Rab. F. E. 747. Rehm Asc. 225. 



Stromata numerous, gregarious or scattered, often covering the 

 whole limb on which they grow, conical or hemispherical from a dr. 

 cular base, mostly small, scarcely \ mm. diam., but sometimes larger 

 (1 mm.), visible through the thin, closely adherent epidermis, which is 

 raised into pustules flattened above and pierced by the disk, which is 

 surrounded by a slight depression. Perithecia 2-8 in a stroma, irreg- 

 ularly monostichous, sphseroid, minute, with slender necks and puncti- 

 form ostiola, erumpent in the center of the small, whitish disk. Asci 

 clavate or oblong, sessile, 8-spored, 40-44 x 8 p.. Sporidia conglobate, 

 cylindrical, curved, hyaline, 9-14 x2 /i. Spermogonia few-celled, 

 sometimes one-celled, with a single central pore, or, more seldom, with 

 2-3 pores penetrating the whitish, brown-margined disk. Spermatia 

 cylindrical, curved, 4-5 xl ju. 



On dead willow branches, West Albany, N. Y. (Peck). 



V. morigena, B. & C. Grev. XIV, p. 46. 



Perithecia globose, immersed in a pale cortical stroma, which is cov- 

 ered at length with a black crust, and circumscribed by a black line. 

 Ostiola subconfluent, and slightly prominent in a minute, black disk. 

 Asci cylindric-clavate. Sporidia allantoid, hyaline, 10 x 2 fi. 



On bark of Morus multicaidis, South Carolina. 



V. caryigena, B. & C. Grev. IV, p. 102, and Cke. Valsei of the 

 * U. S. No. 32. 



Fxsicc. EH. N. A. F. 867. 



Stroma as in V. prcesta?is, but mostly smaller, convex-conical, 

 1-1 J mm. diam., whitish inside, raising the bark into distinct pustules, 

 mostly seriately arranged, and pierced at the apex by the small, dirty- 

 white, round disk. Perithecia in a single crowded layer in the bottom 



