518 



42x7-8 p. Sporidia conglobate, yellowish, allantoid, slightly curved 

 or nearly straight, Il-13x2| //. 



Var. acerina, Pk. on branches of Acer spicatum, Port Henry, 

 N. Y., has the asci broader (12-15 



V. adhaerens, Fckl. Symb. Nachtr. II, p. 36, 



Exsicc. Fckl, F. Rh. 2538. 



Conceptacles immersed, minute, 1-1 J mm. broad, depressed, 

 irregularly orbicular, covered by the adherent epidermis. Perithecia 

 3-5, packed in the brown stroma, minute, black. Ostiola in a small, 

 transversely-eruinpent, elliptical disk, ovate, perforated, black. Asci 

 oblong, sessile, polysporous, 54 x 6-7 //. Sporidia allantoid, slightly 

 curved, hyaline, 6x1 /JL. 



Var. Americana, Pk., on bark of Betula populifolia, Sandlake, 

 N. Y., has 5-12 perithecia in a pustule, and the sporidia are colored 

 in the mass. 



V. clopima, (Fr.) 



Valsa clopima, Fr. S. M. II, p. 40*. 

 Valsella clopima, Sacc. Syll. 611. 



Stroma hemispherical, pustuliform, depressed, almost superficial, 

 closely covered by the thin, blackened, closely adherent epidermis 

 which is barely pierced by the suborbicular disk. Perithecia 4-16 in 

 a stroma, monostichous or subcircinate, subspherical, brown. Ostiola 

 scattered, rounded, or suboblong, black, shining or opake, with a 

 broad opening. Asci clavate-cylindrical, sessile, 40-46 x 6 /*. Spo- 

 ridia cylindrical, curved or straight, hyaline, 5-8 x 1-1 J JJL. 



On shrubs, Bethlehem, Pa. (Schw.) Syn. N. Am. 1360. 



V. nigro-annnlata, Fckl. Symb. Nachtr. I, p. 29. 



Exsicc. Fckl. F. Rh. 2458. 



Stroniata gregarious and more or less confluent, orbicular, | mm. 

 diam., white inside, depressed, dull gray, covered by the epidermis, 

 through which the outline of the stroma appears like a dark, slightly 

 raised ring. Perithecia about 4 in a stroma, light-colored, small (less 

 than \ mm.), globose, with very short necks, and minute, punctifbrm, 

 black ostiola erumpent in the center of the small, grayish disk, which 

 is just visible through a circular opening in the epidermis. Asci cla- 

 vate-oblong, sessile, 35-45x7-8 p (28-35x7-8 p, Winter), 16-25- 

 spored. Sporidia conglobate, allantoid, subhyaline, slightly curved, 

 7-9 x 1J-2 fi (9-13 x 2 ^ Winter), (6-7 x 1 //, Rehm). 



On dead limbs of (Salix)'*. Wilmington, DeL- (Commons). 



